Jean Pouliot

Summary

Affiliation: University of California
Country: USA

Publications

  1. ncbi request reprint Dose calculation using megavoltage cone-beam CT
    Olivier Morin
    Comprehensive Cancer Center, Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143, USA
    Int J Radiat Oncol Biol Phys 67:1201-10. 2007
  2. ncbi request reprint [Megavoltage cone-beam CT: Recent developments and clinical applications]
    J Pouliot
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143, USA
    Cancer Radiother 10:258-68. 2006
  3. ncbi request reprint Megavoltage imaging, megavoltage cone beam CT and dose-guided radiation therapy
    Jean Pouliot
    University of California at San Francisco Comprehensive Cancer Center, San Francisco, CA 94143 1708, USA
    Front Radiat Ther Oncol 40:132-42. 2007
  4. ncbi request reprint Kilovoltage volumetric imaging in the treatment room
    D A Jaffray
    Radiation Medicine Program, Princess Margaret Hospital Ontario Cancer Institute Department of Radiation Oncology and Medical Biophysics, University of Toronto, Toronto, Canada
    Front Radiat Ther Oncol 40:116-31. 2007
  5. ncbi request reprint (Non)-migration of radiopaque markers used for on-line localization of the prostate with an electronic portal imaging device
    Jean Pouliot
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, San Francisco, CA, USA
    Int J Radiat Oncol Biol Phys 56:862-6. 2003
  6. ncbi request reprint Low-dose megavoltage cone-beam CT for radiation therapy
    Jean Pouliot
    Department of Radiation Oncology, University of California San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 61:552-60. 2005
  7. ncbi request reprint Inverse planning for HDR prostate brachytherapy used to boost dominant intraprostatic lesions defined by magnetic resonance spectroscopy imaging
    Jean Pouliot
    Department of Radiation Oncology, University of California San Francisco, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 59:1196-207. 2004
  8. ncbi request reprint Daily electronic portal imaging of implanted gold seed fiducials in patients undergoing radiotherapy after radical prostatectomy
    Daniel C Schiffner
    Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 67:610-9. 2007
  9. ncbi request reprint Physical performance and image optimization of megavoltage cone-beam CT
    Olivier Morin
    Department of Radiation Oncology, Helen Diller Comprehensive Cancer Center, University of California San Francisco, San Francisco, California 94143, USA
    Med Phys 36:1421-32. 2009
  10. ncbi request reprint Patient dose considerations for routine megavoltage cone-beam CT imaging
    Olivier Morin
    Comprehensive Cancer Center Department of Radiation Oncology, University of California San Francisco, San Francisco, California 94143, USA
    Med Phys 34:1819-27. 2007

Detail Information

Publications95

  1. ncbi request reprint Dose calculation using megavoltage cone-beam CT
    Olivier Morin
    Comprehensive Cancer Center, Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143, USA
    Int J Radiat Oncol Biol Phys 67:1201-10. 2007
    ..To demonstrate the feasibility of performing dose calculation on megavoltage cone-beam CT (MVCBCT) of head-and-neck patients in order to track the dosimetric errors produced by anatomic changes...
  2. ncbi request reprint [Megavoltage cone-beam CT: Recent developments and clinical applications]
    J Pouliot
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143, USA
    Cancer Radiother 10:258-68. 2006
    ..Examples of the image-guided treatment process from the acquisition of the MV CBCT scan to the correction of the couch position and dose delivery will be presented for spinal and lung lesions and for head and neck, and prostate cancers...
  3. ncbi request reprint Megavoltage imaging, megavoltage cone beam CT and dose-guided radiation therapy
    Jean Pouliot
    University of California at San Francisco Comprehensive Cancer Center, San Francisco, CA 94143 1708, USA
    Front Radiat Ther Oncol 40:132-42. 2007
    ..By combining exit dosimetry with the EPID and MV CBCT, this technology may play a key role in tracking the dose delivered to the patient, taking us into an era of dose-guided radiation therapy ...
  4. ncbi request reprint Kilovoltage volumetric imaging in the treatment room
    D A Jaffray
    Radiation Medicine Program, Princess Margaret Hospital Ontario Cancer Institute Department of Radiation Oncology and Medical Biophysics, University of Toronto, Toronto, Canada
    Front Radiat Ther Oncol 40:116-31. 2007
    ..These imaging technologies will lead to a better understanding of the weaknesses, and provide opportunity to reduce errors and improve technical execution of radiotherapy delivery...
  5. ncbi request reprint (Non)-migration of radiopaque markers used for on-line localization of the prostate with an electronic portal imaging device
    Jean Pouliot
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, San Francisco, CA, USA
    Int J Radiat Oncol Biol Phys 56:862-6. 2003
    ..Radiopaque gold markers can be implanted in the prostate to visualize its position on portal images during radiation therapy. This procedure assumes that the markers do not move within the prostate. In this work we test this assumptiom...
  6. ncbi request reprint Low-dose megavoltage cone-beam CT for radiation therapy
    Jean Pouliot
    Department of Radiation Oncology, University of California San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 61:552-60. 2005
    ....
  7. ncbi request reprint Inverse planning for HDR prostate brachytherapy used to boost dominant intraprostatic lesions defined by magnetic resonance spectroscopy imaging
    Jean Pouliot
    Department of Radiation Oncology, University of California San Francisco, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 59:1196-207. 2004
    ..To dose escalate selected regions inside the prostate without compromising the dose coverage of the prostate and the protection to the urethra, rectum, and bladder for prostate cancer patients treated with high-dose-rate brachytherapy...
  8. ncbi request reprint Daily electronic portal imaging of implanted gold seed fiducials in patients undergoing radiotherapy after radical prostatectomy
    Daniel C Schiffner
    Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 67:610-9. 2007
    ..The aim of this study was to measure interfraction prostate bed motion, setup error, and total positioning error in 10 consecutive patients undergoing postprostatectomy radiotherapy...
  9. ncbi request reprint Physical performance and image optimization of megavoltage cone-beam CT
    Olivier Morin
    Department of Radiation Oncology, Helen Diller Comprehensive Cancer Center, University of California San Francisco, San Francisco, California 94143, USA
    Med Phys 36:1421-32. 2009
    ..Further improvement is expected from the next generation MVCBCT system with an optimized megavoltage imaging beamline...
  10. ncbi request reprint Patient dose considerations for routine megavoltage cone-beam CT imaging
    Olivier Morin
    Comprehensive Cancer Center Department of Radiation Oncology, University of California San Francisco, San Francisco, California 94143, USA
    Med Phys 34:1819-27. 2007
    ..Reducing the imaging volume in the cranio-caudal direction can further reduce the dose delivered for MVCBCT. This is a useful feature to eliminate the imaging dose to the eyes or to focus on a specific region of interest for alignment...
  11. ncbi request reprint Dose uncertainty due to computed tomography (CT) slice thickness in CT-based high dose rate brachytherapy of the prostate cancer
    Yongbok Kim
    Department of Radiation Oncology, University of California, San Francisco, Mount Zion Comprehensive Cancer Center, 1600 Divisadero Street, San Francisco, California 94143 1708, USA
    Med Phys 31:2543-8. 2004
    ..A CT slice thickness of 3 mm appears to be a good compromise showing an acceptable average dose uncertainty of 1%, without unduly increasing the number of slices...
  12. ncbi request reprint Comparison of dosimetric and biologic effective dose parameters for prostate and urethra using 131 Cs and 125 I for prostate permanent implant brachytherapy
    Arjun Sahgal
    Department of Radiation Oncology, University of California, San Francisco, School of Medicine, San Francisco, CA94143, USA
    Int J Radiat Oncol Biol Phys 72:247-54. 2008
    ..To compare the urethral and prostate absolute and biologic effective doses (BEDs) for 131 Cs and 125 I prostate permanent implant brachytherapy (PPI)...
  13. doi request reprint Dosimetric impact of interfraction catheter movement in high-dose rate prostate brachytherapy
    William Foster
    Department of Radiation Oncology, University of California San Francisco, San Francisco, California, USA
    Int J Radiat Oncol Biol Phys 80:85-90. 2011
    ..To evaluate the impact of interfraction catheter movement on dosimetry in prostate high-dose-rate (HDR) brachytherapy...
  14. pmc Phase II trial of combined high-dose-rate brachytherapy and external beam radiotherapy for adenocarcinoma of the prostate: preliminary results of RTOG 0321
    I Chow Hsu
    University of California, San Francisco, Helen Diller Family Comprehensive Cancer Center, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 78:751-8. 2010
    ..To estimate the rate of late Grade 3 or greater genitourinary (GU) and gastrointestinal (GI) adverse events (AEs) after treatment with external beam radiotherapy and prostate high-dose-rate (HDR) brachytherapy...
  15. doi request reprint Dose recalculation and the Dose-Guided Radiation Therapy (DGRT) process using megavoltage cone-beam CT
    Joey Cheung
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, 94115, USA
    Int J Radiat Oncol Biol Phys 74:583-92. 2009
    ..In this article, we present the process of performing dose recalculation on megavoltage cone-beam computed tomography images and discuss possible strategies for dose-guided radiation therapy (DGRT)...
  16. ncbi request reprint High-dose rate brachytherapy using inverse planning simulated annealing for locoregionally advanced cervical cancer: a clinical report with 2-year follow-up
    Daniel H Kim
    Department of Radiation Oncology, University of California, San Francisco, CA, USA
    Int J Radiat Oncol Biol Phys 75:1329-34. 2009
    ..We present clinical outcomes of image-guided brachytherapy using inverse planning simulated annealing (IPSA) planned high-dose rate (HDR) brachytherapy boost for locoregionally advanced cervical cancer...
  17. ncbi request reprint Positional stability of electromagnetic transponders used for prostate localization and continuous, real-time tracking
    Dale W Litzenberg
    Department of Radiation Oncology, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA
    Int J Radiat Oncol Biol Phys 68:1199-206. 2007
    ..Ideally, the distances between transponders remains constant over the course of treatment. In this work, we evaluate the accuracy of these conditions...
  18. ncbi request reprint Measurement of craniocaudal catheter displacement between fractions in computed tomography-based high dose rate brachytherapy of prostate cancer
    Yongbok Kim
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143 1708, USA
    J Appl Clin Med Phys 8:2415. 2007
    ..We found a pattern of catheter displacement using our technique. Based on our finding further improvement of our results may be possible by modification of our current technique...
  19. ncbi request reprint Three-dimensional conformal external beam radiotherapy compared with permanent prostate implantation in low-risk prostate cancer based on endorectal magnetic resonance spectroscopy imaging and prostate-specific antigen level
    Barby Pickett
    Department of Radiation Oncology, University of California, San Francisco, School of Medicine, San Francisco, CA 94143, USA
    Int J Radiat Oncol Biol Phys 65:65-72. 2006
    ..Recent studies have suggested that the treatment of low-risk prostate cancer yields similar results for patients treated with 3D-CRT or PPI...
  20. ncbi request reprint Prostate movement during simulation resulting from retrograde urethrogram compared with "natural" prostate movement
    Yu Ming Liu
    Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
    Int J Radiat Oncol Biol Phys 60:470-5. 2004
    ..Some investigators have reported that performing the UG introduces error by causing prostate displacement. We investigate the movement of the prostate caused by the retrograde UG...
  21. ncbi request reprint Urethra low-dose tunnels: validation of and class solution for generating urethra-sparing dose plans using inverse planning simulated annealing for prostate high-dose-rate brachytherapy
    J Adam M Cunha
    Department of Radiation Oncology, University of California San Francisco, San Francisco, CA 94118, USA
    Brachytherapy 11:348-53. 2012
    ..This work describes a dose planning method that uses inverse planning to create a low-dose tunnel around the urethra and presents a class solution to achieve this additional dose sparing of the urethra...
  22. doi request reprint Comparison of high-dose rate prostate brachytherapy dose distributions with iridium-192, ytterbium-169, and thulium-170 sources
    Devan Krishnamurthy
    Department of Radiation Oncology, University of California San Francisco, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA 94143 1708, USA
    Brachytherapy 10:461-5. 2011
    ..V., Veenendaal, The Netherlands)...
  23. ncbi request reprint Low dose megavoltage cone beam computed tomography with an unflattened 4 MV beam from a carbon target
    Bruce A Faddegon
    Department of Radiation Oncology, UCSF Comprehesive Cancer Center, San Francisco, California 94143 1708, USA
    Med Phys 35:5777-86. 2008
    ....
  24. ncbi request reprint Class solution in inverse planned HDR prostate brachytherapy for dose escalation of DIL defined by combined MRI/MRSI
    Yongbok Kim
    Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143 1708, USA
    Radiother Oncol 88:148-55. 2008
    ..To establish an inverse planning set of parameters (class solution) to boost dominant intra-prostatic lesion (DIL) defined by MRI/MRSI...
  25. doi request reprint Surgical resection and permanent iodine-125 brachytherapy for brain metastases
    Kim Huang
    Department of Radiation Oncology, University of California San Francisco, 505 Parnassus Avenue, Room L 08, San Francisco, CA, 94143 0226, USA
    J Neurooncol 91:83-93. 2009
    ..To evaluate the efficacy and toxicity of surgical resection and permanent iodine-125 brachytherapy without adjuvant whole brain radiation therapy (WBRT) for brain metastases...
  26. ncbi request reprint Class solution for inversely planned permanent prostate implants to mimic an experienced dosimetrist
    Etienne Lessard
    UCSF Comprehensive Cancer Center, San Francisco, California 94143 1708, USA
    Med Phys 33:2773-82. 2006
    ..This technology is not intended to replace the physicist but to accelerate the planning process, making intraoperative treatment planning more effective...
  27. pmc Cold spot mapping inferred from MRI at time of failure predicts biopsy-proven local failure after permanent seed brachytherapy in prostate cancer patients: implications for focal salvage brachytherapy
    Gilles Crehange
    Department of Radiation Oncology, Helen Diller Family Comprehensive Cancer Center, UCSF, San Francisco, USA Department of Radiation Oncology, Dijon University Hospital, France Electronic address
    Radiother Oncol 109:246-50. 2013
    ..1) To establish a method to evaluate dosimetry at the time of primary prostate permanent implant (pPPI) using MRI of the shrunken prostate at the time of failure (tf). (2) To compare cold spot mapping with sextant-biopsy mapping at tf...
  28. ncbi request reprint Feasibility of high-dose-rate brachytherapy salvage for local prostate cancer recurrence after radiotherapy: the University of California-San Francisco experience
    Brian Lee
    Department of Radiation Oncology, University of California San Francisco, San Francisco, CA 94115, USA
    Int J Radiat Oncol Biol Phys 67:1106-12. 2007
    ..The aim of this study was to evaluate the feasibility and safety of salvage high-dose-rate (HDR) brachytherapy for locally recurrent prostate cancer after external beam radiotherapy (EBRT)...
  29. ncbi request reprint Analysis of interaction between number of implant catheters and dose-volume histograms in prostate high- dose-rate brachytherapy using a computer model
    Claire Charra-Brunaud
    Department of Radiation Oncology, University of California at San Francisco, San Francisco, CA, USA
    Int J Radiat Oncol Biol Phys 56:586-91. 2003
    ..In prostate high-dose-rate brachytherapy, to determine before implant, using the standard geometric optimization algorithm, whether there is an optimal number of catheters...
  30. ncbi request reprint Dosimetric impact of prostate volume change between CT-based HDR brachytherapy fractions
    Yongbok Kim
    Department of Radiation Oncology, Comprehensive Cancer Center, University of California San Francisco, 1600 Divisadero Street, Suite H 1031, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 59:1208-16. 2004
    ..The objective is to evaluate the prostate volume change and its dosimetric consequences after the insertion of catheters for high-dose-rate brachytherapy...
  31. doi request reprint The residual setup errors of different IGRT alignment procedures for head and neck IMRT and the resulting dosimetric impact
    Pierre Graff
    Department of Radiation Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA
    Int J Radiat Oncol Biol Phys 86:170-6. 2013
    ..To assess residual setup errors during head and neck radiation therapy and the resulting consequences for the delivered dose for various patient alignment procedures...
  32. doi request reprint Physics strategies for sparing neural stem cells during whole-brain radiation treatments
    Neil Kirby
    Department of Radiation Oncology, University of California, San Francisco, CA 94143 1708, USA
    Med Phys 38:5338-44. 2011
    ..This study investigates the fundamental physics issues associated with the sparing of neural stem cells during photon radiotherapy for brain metastases...
  33. ncbi request reprint Inverse planning optimization for hybrid prostate permanent-seed implant brachytherapy plans using two source strengths
    J Adam M Cunha
    Physics Division, Department of Radiation Oncology, The University of California, San Francisco, CA 94115, USA
    J Appl Clin Med Phys 11:3096. 2010
    ....
  34. ncbi request reprint Comparison of three strategies in management of independent movement of the prostate and pelvic lymph nodes
    Ping Xia
    Department of Radiation Oncology, University of California San Francisco, San Francisco, California 94143, USA
    Med Phys 37:5006-13. 2010
    ..The purposes of this article are to propose a new management strategy and to compare this strategy to the conventional isocenter shift method and the previously proposed MLC-shifting method...
  35. pmc Toward adaptive stereotactic robotic brachytherapy for prostate cancer: demonstration of an adaptive workflow incorporating inverse planning and an MR stealth robot
    J Adam Cunha
    Department of Radiation Oncology, University of California, San Francisco, CA, USA
    Minim Invasive Ther Allied Technol 19:189-202. 2010
    ..Demonstration of this workflow is a key element of a successful translation to the clinic of the MRI stealth robotic delivery system, MRBot...
  36. doi request reprint Are lateral electronic portal images adequate for accurate on-line daily targeting of the prostate? Results of a prospective study
    Michael W Lometti
    Department of Radiation Oncology, University of California San Francisco Comprehensive Cancer Center, San Francisco, CA 94143, USA
    Med Dosim 33:22-9. 2008
    ..In most circumstances, with exceptions such as morbidly obese patients, acquisition of only a LAT image for daily targeting of the prostate will provide adequate positional precision...
  37. ncbi request reprint Daily electronic portal imaging for morbidly obese men undergoing radiotherapy for localized prostate cancer
    Laura Ellen Millender
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, San Francisco, CA 94143, USA
    Int J Radiat Oncol Biol Phys 59:6-10. 2004
    ..We summarize our experience with a series of morbidly obese men treated using daily online portal imaging and implanted gold markers to guide external beam radiation therapy (EBRT)...
  38. ncbi request reprint Correction of megavoltage cone-beam CT images of the pelvic region based on phantom measurements for dose calculation purposes
    Jean Francois Aubry
    Department of Radiation Oncology, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
    J Appl Clin Med Phys 10:2852. 2009
    ..This correction method enablesMVCBCT images to be used for the verification of the daily dose distribution for patients treated in the pelvis region...
  39. ncbi request reprint Investigation of geometric distortions on magnetic resonance and cone beam computed tomography images used for planning and verification of high-dose rate brachytherapy cervical cancer treatment
    Jean Francois Aubry
    Department of Radiation Oncology, University of California San Francisco, San Francisco, CA 94143, USA
    Brachytherapy 9:266-73. 2010
    ....
  40. ncbi request reprint Radiation dosimetry of a conformal heat-brachytherapy applicator
    Richard Taschereau
    Department of Radiation Oncology, University of California, San Francisco, 1600 Divisadero Street, San Franciso, CA 94143 1708, USA
    Technol Cancer Res Treat 3:347-58. 2004
    ..Lowering radiation dose by an equivalent factor may produce lower radiation toxicity with similar efficacy, while preserving the option of subsequent retreatment(s) with thermoradiotherapy in order to further extend patient survival...
  41. ncbi request reprint A dosimetric evaluation of using a single treatment plan for multiple treatment fractions within a given applicator insertion in gynecologic brachytherapy
    Dilini S Pinnaduwage
    Department of Radiation Oncology, University of California San Francisco, San Francisco, CA Electronic address
    Brachytherapy 12:487-94. 2013
    ..To evaluate the dosimetric impact of using one treatment plan for multiple fractions from a single tandem and ring applicator insertion of high-dose-rate brachytherapy for cervical cancer...
  42. ncbi request reprint Megavoltage cone-beam CT: system description and clinical applications
    Olivier Morin
    University of California San Francisco Comprehensive Cancer Center, Department of Radiation Oncology, 94143, USA
    Med Dosim 31:51-61. 2006
    ..Current image quality has already proven sufficient for many IGRT applications. Moreover, we expect the range of clinical applications for MV CBCT to grow as imaging technology continues to improve...
  43. ncbi request reprint Expandable and rigid endorectal coils for prostate MRI: impact on prostate distortion and rigid image registration
    Yongbok Kim
    Department of Radiation Oncology, University of California, San Francisco, Comprehensive Cancer Center 1600 Divisadero Street, Suite H1031, San Francisco, California 94143 1708, USA
    Med Phys 32:3569-78. 2005
    ..941 +/- 0.008 vs 0.899 +/- 0.033, for the rigid and expandable coils, respectively). In conclusion, the manual rigid-body alignment of prostate MR images acquired with and without the ERC can be improved through the use of a rigid ERC...
  44. ncbi request reprint Comparison of inverse planning simulated annealing and geometrical optimization for prostate high-dose-rate brachytherapy
    I Chow J Hsu
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143 1708, USA
    Brachytherapy 3:147-52. 2004
    ..An inverse planning simulated annealing (IPSA) algorithm for optimization of high-dose-rate (HDR) brachytherapy has been previously described. In this study, IPSA is compared with geometrical optimization (GO) for prostate brachytherapy...
  45. ncbi request reprint Dosimetric aspects of inverse-planned modulated-arc total-body irradiation
    Mareike Held
    Department of Radiation Oncology, University of California San Francisco, California 94143 1708, USA
    Med Phys 39:5263-71. 2012
    ..To develop optimal beam parameters and to verify the dosimetric aspects of the recently developed modulated-arc total-body irradiation (MATBI) technique, which delivers an inverse-planned dose to the entire body using gantry rotation...
  46. ncbi request reprint Image-guided radiotherapy using megavoltage cone-beam computed tomography for treatment of paraspinous tumors in the presence of orthopedic hardware
    Eric K Hansen
    Department of Radiation Oncology, University of California San Francisco, San Francisco, CA 94115, USA
    Int J Radiat Oncol Biol Phys 66:323-6. 2006
    ..This report describes a new image-guided radiotherapy (IGRT) technique using megavoltage cone-beam computed tomography (MV-CBCT) to treat paraspinous tumors in the presence of orthopedic hardware...
  47. ncbi request reprint The effect of the radial function on I-125 seeds used for permanent prostate implantation
    Barby Pickett
    Department of Radiation Oncology, University of California San Francisco UCSF, San Francisco, CA, USA
    Med Dosim 29:204-9. 2004
    ..It was determined that the dose rate constant and anisotropy factor determine the activity needed for implantation but a strong dependence on the radial function was found to effect the doses to the adjacent structures...
  48. doi request reprint American Society for Therapeutic Radiology and Oncology (ASTRO) Emerging Technology Committee report on electronic brachytherapy
    Catherine C Park
    Department of Radiation Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, 1600 Divisadero St, H1031, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 76:963-72. 2010
    ..The full Emerging Technology Committee report is available on the American Society for Therapeutic Radiology and Oncology Web site...
  49. ncbi request reprint 3D inverse treatment planning for the tandem and ovoid applicator in cervical cancer
    Kelly D Dewitt
    Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143 170, USA
    Int J Radiat Oncol Biol Phys 63:1270-4. 2005
    ..In this study we describe a method of target delineation for the tandem and ovoids applicator. We then compare inverse planning dose distributions with the traditional methods of prescribing dose...
  50. ncbi request reprint Inverse planning for interstitial gynecologic template brachytherapy: truly anatomy-based planning
    Etienne Lessard
    Department of Radiation Oncology, University of California San Francisco, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 54:1243-51. 2002
    ..The objective of this work is to present the clinical application of an inverse planning dose optimization tool for the automatic determination of source dwell time values in the treatment of interstitial gynecologic templates...
  51. doi request reprint Does IGRT ensure target dose coverage of head and neck IMRT patients?
    Pierre Graff
    Department of Radiation Oncology, University of California San Francisco, CA 94143, USA
    Radiother Oncol 104:83-90. 2012
    ..To determine if image-guided radiotherapy (IGRT) ensures dose coverage to the target, and to assess the dosimetric impact of anatomic changes using megavoltage cone-beam CT (MVCBCT) for patient positioning during head and neck IMRT...
  52. doi request reprint NPIP: A skew line needle configuration optimization system for HDR brachytherapy
    Timmy Siauw
    Department of Civil and Environmental Engineering, University of California, Berkeley, CA, USA
    Med Phys 39:4339-46. 2012
    ..NPIP generates needle configurations that are specific to the anatomy of the patient, avoid critical structures near the penile bulb and other healthy structures, and avoid needle collisions inside the body...
  53. ncbi request reprint Calibration of an amorphous-silicon flat panel portal imager for exit-beam dosimetry
    Josephine Chen
    Department of Radiation Oncology, UCSF Comprehensive Cancer Center, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94115, USA
    Med Phys 33:584-94. 2006
    ..This calibration method for flat panel portal imagers may be used as part of a validation scheme to verify the dose delivered to the patient during treatment...
  54. doi request reprint Site-specific deformable imaging registration algorithm selection using patient-based simulated deformations
    Ke Nie
    Department of Radiation Oncology, University of California, San Francisco, California 94143, USA
    Med Phys 40:041911. 2013
    ..In this study, the authors propose a framework to quantitatively validate various image registration solutions by using patient-based synthetic quality assurance (QA) phantoms, which can be applied on a site-by-site basis...
  55. ncbi request reprint Target localization and real-time tracking using the Calypso 4D localization system in patients with localized prostate cancer
    Twyla R Willoughby
    Department of Radiation Oncology, M D Anderson Cancer Center Orlando, Orlando, FL 32806, USA
    Int J Radiat Oncol Biol Phys 65:528-34. 2006
    ..This study involves the first human use of the system, to evaluate the localization accuracy of this technique compared with radiographic localization and to assess its ability to obtain real-time prostate-motion information...
  56. ncbi request reprint Phase I trial of gross total resection, permanent iodine-125 brachytherapy, and hyperfractionated radiotherapy for newly diagnosed glioblastoma multiforme
    Allen M Chen
    Department of Radiation Oncology, University of California, San Francisco School of Medicine, San Francisco, CA 94143 0226, USA
    Int J Radiat Oncol Biol Phys 69:825-30. 2007
    ..To evaluate the feasibility of gross total resection and permanent I-125 brachytherapy followed by hyperfractionated radiotherapy for patients with newly diagnosed glioblastoma...
  57. pmc Dosimetric analysis of radiation therapy oncology group 0321: the importance of urethral dose
    I Chow Hsu
    Department of Radiation Oncology, University of California San Francisco, San Francisco, California Electronic address
    Pract Radiat Oncol 4:27-34. 2014
    ..This is a descriptive report of the data and an analysis of toxicity...
  58. ncbi request reprint Correction of megavoltage cone-beam CT images for dose calculation in the head and neck region
    Jean Francois Aubry
    Department of Radiation Oncology, University of California San Francisco, 1600 Divisadero Street, Suite H1031, San Francisco, California 94143, USA
    Med Phys 35:900-7. 2008
    ..With patients images the agreement is within +/- 13% above the shoulders and +/- 5% below the shoulder line. This level of dose calculation accuracy allows the use of MVCBCT images for dose verification purposes...
  59. doi request reprint Inverse-planned modulated-arc total-body irradiation
    Neil Kirby
    Department of Radiation Oncology, University of California, San Francisco, CA, USA
    Med Phys 39:2761-4. 2012
    ....
  60. ncbi request reprint American Brachytherapy Society consensus guidelines for high-dose-rate prostate brachytherapy
    Yoshiya Yamada
    Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
    Brachytherapy 11:20-32. 2012
    ..Most of the articles describe HDR as a boost with adjuvant external beam radiation, but there is a growing experience with HDR monotherapy...
  61. ncbi request reprint Optimisation-based thermal treatment planning for catheter-based ultrasound hyperthermia
    Xin Chen
    Thermal Therapy Research Group, Department of Radiation Oncology, University of California at San Francisco, San Francisco, California 94143 1708, USA
    Int J Hyperthermia 26:39-55. 2010
    ....
  62. ncbi request reprint Characteristics of megavoltage cone-beam digital tomosynthesis
    M Descovich
    Department of Radiation Oncology, University of California at San Francisco, San Francisco, California 94143 0226, USA
    Med Phys 35:1310-6. 2008
    ..Potential clinical applications include patient setup and the development of breath holding techniques for gated imaging...
  63. ncbi request reprint Evaluation of ultrasound-based prostate localization for image-guided radiotherapy
    K M Langen
    Department of Radiation Oncology, University of California, San Francisco, School of Medicine, San Francisco, CA 94143, USA
    Int J Radiat Oncol Biol Phys 57:635-44. 2003
    ..However, the occurrence of displacements >/=5 mm was reduced in the AP direction. The inter-user variation of the contour alignment process was significant...
  64. ncbi request reprint Dosimetric equivalence of nonstandard HDR brachytherapy catheter patterns
    J A M Cunha
    University of California, San Francisco, California 94115, USA
    Med Phys 36:233-9. 2009
    ..To determine whether alternative high dose rate prostate brachytherapy catheter patterns can result in similar or improved dose distributions while providing better access and reducing trauma...
  65. ncbi request reprint Automated seed detection and three-dimensional reconstruction. II. Reconstruction of permanent prostate implants using simulated annealing
    D Tubic
    Department of Radiation Oncology, Centre Hospitalier Universitaire de Quebec, l'Universite Laval, 11 Cote du Palais, Quebec GIR 2J6, Canada
    Med Phys 28:2272-9. 2001
    ..Compared to the latter technique, the reconstruction precision was improved in 62% of the clinical cases...
  66. ncbi request reprint Inverse planning anatomy-based dose optimization for HDR-brachytherapy of the prostate using fast simulated annealing algorithm and dedicated objective function
    E Lessard
    Service de radio oncologie, L Hôtel Dieu de Québec, Centre Hospitalier Universitaire de Quebec CHUQ, Centre de recherche en cancérologie de l Université Laval, Canada
    Med Phys 28:773-9. 2001
    ..Moreover, using the same concept, it will be possible to deliver a boost dose to a delimited tumor volume within the prostate. Finally, this method can be easily extended to other anatomical sites...
  67. ncbi request reprint Relative biological effectiveness enhancement of a 125I brachytherapy seed with characteristic x rays from its constitutive materials
    Richard Taschereau
    Centre Hospitalier Universitaire de Quebec, Département de Radio Oncologie, Canada
    Med Phys 29:1397-402. 2002
    ..The RBE dependence on distance is an interesting feature that could benefit other applications such as ocular melanoma or coronary brachytherapy where a highly localized dose distribution is desired...
  68. ncbi request reprint A comparison of methods to calculate biological effectiveness (RBE) from Monte Carlo simulations
    Richard Taschereau
    Centre Hospitalier Universitaire de Quebec, Quebec, Canada
    Med Dosim 28:21-6. 2003
    ..The former yields a value of 10.6%, twice the value obtained with the latter (4.5%). Which spectrum to use is an open question. A theoretical argument is presented in favor of the ejection spectrum...
  69. doi request reprint The need for application-based adaptation of deformable image registration
    Neil Kirby
    Department of Radiation Oncology, University of California, San Francisco, CA, USA
    Med Phys 40:011702. 2013
    ..To utilize a deformable phantom to objectively evaluate the accuracy of 11 different deformable image registration (DIR) algorithms...
  70. ncbi request reprint A two-dimensional deformable phantom for quantitatively verifying deformation algorithms
    Neil Kirby
    Department of Radiation Oncology, University of California San Francisco, San Francisco, California 94143 1708, USA
    Med Phys 38:4583-6. 2011
    ..This manuscript proposes a two-dimensional deformable phantom, which can objectively verify the accuracy of deformation algorithms, as the next step for improving these techniques...
  71. ncbi request reprint A comparison between tandem and ovoids and interstitial gynecologic template brachytherapy dosimetry using a hypothetical computer model
    I Chow J Hsu
    Department of Radiation Oncology, University of California at San Francisco, San Francisco, CA 94143 1708, USA
    Int J Radiat Oncol Biol Phys 52:538-43. 2002
    ..To evaluate the dose distribution within the clinical target volume between two gynecologic brachytherapy systems---the tandem and ovoids and the Syed-Neblett gynecologic template---using a hypothetical computer model...
  72. ncbi request reprint A spatially encoded dose difference maximal intensity projection map for patient dose evaluation: a new first line patient quality assurance tool
    Weigang Hu
    Department of Radiation Oncology, University of California, San Francisco, San Francisco, California 94143, USA
    Med Phys 38:1748-53. 2011
    ..To develop a spatially encoded dose difference maximal intensity projection (DD-MIP) as an online patient dose evaluation tool for visualizing the dose differences between the planning dose and dose on the treatment day...
  73. ncbi request reprint Dose-guided radiation therapy with megavoltage cone-beam CT
    J Chen
    UCSF Comprehensive Cancer Center, Department of Radiation Oncology, University of California San Francisco, 1600 Divisadero Street, Suite H1031, San Francisco, CA 94143, USA
    Br J Radiol 79:S87-98. 2006
    ..We also present an example of a reconstructed patient dose using a preliminary reconstruction program and discuss the technical challenges that remain to full implementation of dose reconstruction and dose-guided therapy...
  74. ncbi request reprint Automated seed detection and three-dimensional reconstruction. I. Seed localization from fluoroscopic images or radiographs
    D Tubic
    Department of Radiation Oncology, , , Canada
    Med Phys 28:2265-71. 2001
    ..The orientation of overlapping seeds (10%) should be considered as an estimate at best. The image processing procedure can also be used for seed or catheter detection in CT images, with minor modifications...
  75. ncbi request reprint The use of megavoltage cone-beam CT to complement CT for target definition in pelvic radiotherapy in the presence of hip replacement
    M Aubin
    Department of Radiation Oncology, University of California San Francisco, Comprehensive Cancer Center, San Francisco, CA 94143, USA
    Br J Radiol 79:918-21. 2006
    ..This short communication presents the use of a new imaging modality, megavoltage cone-beam CT, to complement the regular CT for target definition of prostate cancer treatment of patients with hip replacements...
  76. doi request reprint Quality assurance for image-guided radiation therapy utilizing CT-based technologies: a report of the AAPM TG-179
    Jean Pierre Bissonnette
    Department of Radiation Physics, University of Toronto, Toronto, Ontario, Canada
    Med Phys 39:1946-63. 2012
    ..This document provides consensus recommendations for quality assurance protocols that ensure patient safety and patient treatment fidelity for such systems...
  77. ncbi request reprint A two isocenter IMRT technique with a controlled junction dose for long volume targets
    G G Zeng
    Radiation Medicine Program, Princess Margaret Hospital University Health Network, Toronto M5G 2M9, Canada
    Phys Med Biol 52:4541-52. 2007
    ..Film measurements confirmed the treatment planning results...
  78. ncbi request reprint Cone-beam computed tomography with a flat-panel imager: initial performance characterization
    D A Jaffray
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 27:1311-23. 2000
    ..General and specific requirements of kilovoltage CBCT systems are discussed, and the applicability of FPI-based CBCT systems to tomographic localization and image-guidance for radiotherapy is considered...
  79. ncbi request reprint The use of active breathing control (ABC) to reduce margin for breathing motion
    J W Wong
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI 48073 6769, USA
    Int J Radiat Oncol Biol Phys 44:911-9. 1999
    ..Treatment planning and delivery can then be performed at identical ABC conditions with minimal margin for breathing motion...
  80. ncbi request reprint Intra-prostatic fiducial markers and concurrent androgen deprivation
    A M Nichol
    Radiation Medicine Program, Princess Margaret Hospital, Toronto, Canada
    Clin Oncol (R Coll Radiol) 17:465-8. 2005
    ..To document the case of a man with adenocarcinoma of the prostate treated with external beam radiotherapy and concurrent androgen deprivation...
  81. ncbi request reprint Characterization of a fluoroscopic imaging system for kV and MV radiography
    D G Drake
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 27:898-905. 2000
    ..This is attributed to the kV system's higher DQE and to the inherently higher contrasts present at kV energies...
  82. ncbi request reprint A framework for noise-power spectrum analysis of multidimensional images
    J H Siewerdsen
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 29:2655-71. 2002
    ..The framework may be applied to NPS analysis of image data of arbitrary dimensionality provided the system satisfies conditions of NPS existence...
  83. ncbi request reprint Improvement in dose escalation using the process of adaptive radiotherapy combined with three-dimensional conformal or intensity-modulated beams for prostate cancer
    A A Martinez
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI 48073, USA
    Int J Radiat Oncol Biol Phys 50:1226-34. 2001
    ..The potential dose escalation achievable with this ART process is quantified for both conformal radiotherapy (CRT) delivery and intensity-modulated radiotherapy (IMRT) delivery...
  84. pmc Adapting liver motion models using a navigator channel technique
    T N Nguyen
    Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 3E2, Canada
    Med Phys 36:1061-73. 2009
    ..This method has potential applications in online assessment of motion at the time of treatment to improve image-guided radiotherapy and monitoring of intrafraction motion...
  85. ncbi request reprint A ghost story: spatio-temporal response characteristics of an indirect-detection flat-panel imager
    J H Siewerdsen
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073 6769, USA
    Med Phys 26:1624-41. 1999
    ..g., rapid scanning between projections or iterative correction algorithms, respectively). Similarly, long-term image persistence may necessitate frequent recalibration of offset corrections...
  86. ncbi request reprint Dose-volume analysis for quality assurance of interstitial brachytherapy for breast cancer
    F A Vicini
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI 48073, USA
    Int J Radiat Oncol Biol Phys 45:803-10. 1999
    ..Analyses performed in this fashion will be needed to ultimately assist in determining the efficacy of breast implants...
  87. ncbi request reprint Cone-beam computed tomography with a flat-panel imager: effects of image lag
    J H Siewerdsen
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 26:2635-47. 1999
    ..The artifacts may become appreciable, however, in the presence of high-contrast objects, such as marker BBs, dental fillings, and metal prosthetics. A procedural method of reducing lag artifacts is demonstrated...
  88. ncbi request reprint High resolution gel-dosimetry by optical-CT and MR scanning
    M Oldham
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 28:1436-45. 2001
    ....
  89. ncbi request reprint Optimization of x-ray imaging geometry (with specific application to flat-panel cone-beam computed tomography)
    J H Siewerdsen
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 27:1903-14. 2000
    ..g., chest radiography, fluoroscopy, and mammography) is possible. The degree to which increased exposure can be used to compensate for x-ray scatter degradation is quantified...
  90. ncbi request reprint Volume CT with a flat-panel detector on a mobile, isocentric C-arm: pre-clinical investigation in guidance of minimally invasive surgery
    J H Siewerdsen
    Ontario Cancer Institute, Princess Margaret Hospital, Toronto, Ontario M5G 2M9, Canada
    Med Phys 32:241-54. 2005
    ..Future investigation includes improvement in image quality, particularly regarding x-ray scatter, motion artifacts and field of view, and integration with optical tracking and navigation systems...
  91. ncbi request reprint Dosimetric evaluation of a dedicated stereotactic linear accelerator using measurement and Monte Carlo simulation
    M Heydarian
    Radiation Medicine Program, Princess Margaret Hospital and Department of Radiation Oncology, University of Toronto, Toronto, Ontario M5G 2M9, Canada
    Med Phys 35:3943-54. 2008
    ..Film dosimetry was also used to compare dose distributions of IMRT treatment plans and delivered cumulative doses at different cross sectional planes...
  92. ncbi request reprint Soft-tissue detectability in cone-beam CT: evaluation by 2AFC tests in relation to physical performance metrics
    D J Tward
    Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
    Med Phys 34:4459-71. 2007
    ..g., image guidance tasks in which lesion characteristics are known) is maintained at a lower dose than in SUK conditions (e.g., diagnostic tasks in which lesion characteristics are unknown)...
  93. ncbi request reprint Active breathing control (ABC) for Hodgkin's disease: reduction in normal tissue irradiation with deep inspiration and implications for treatment
    J S Stromberg
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI 48098, USA
    Int J Radiat Oncol Biol Phys 48:797-806. 2000
    ..Active breathing control (ABC) temporarily immobilizes breathing. This may allow a reduction in treatment margins. This planning study assesses normal tissue irradiation and reproducibility using ABC for Hodgkin's disease...
  94. ncbi request reprint Cone-beam computed tomography with a flat-panel imager: magnitude and effects of x-ray scatter
    J H Siewerdsen
    Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA
    Med Phys 28:220-31. 2001
    ..Other reconstruction parameters, such as transaxial resolution length and reconstruction filter, can be similarly adjusted to achieve CNR equal to that obtained in the scatter-free case...
  95. ncbi request reprint Implementation and characterization of a 320-slice volumetric CT scanner for simulation in radiation oncology
    C Coolens
    Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario M5G 2M9, Canada
    Med Phys 36:5120-7. 2009
    ..The aim of this work is to investigate the system's imaging performance and quality as well as CT quantification accuracy which is important for radiotherapy dose calculations...