Research Topics
| Carlos EsquivelSummaryAffiliation: University of Texas Health Science Center Country: USA Publications
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Detail Information
Publications
Novel low-kVp beamlet system for choroidal melanomaCarlos Esquivel
Cancer Therapy and Research Center, San Antonio, TX, USA
Radiat Oncol 1:36. 2006..This technique relies on an isocentric rotational approach to deliver dose to target volumes within the eye, while potentially sparing normal structures...
Three dimensional intensity modulated brachytherapy (IMBT): dosimetry algorithm and inverse treatment planningChengyu Shi
Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229, USA
Med Phys 37:3725-37. 2010....- Evaluation of a commercially-available block for spatially fractionated radiation therapyCourtney Buckey
Departments of Radiology and Radiation Oncology, Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
J Appl Clin Med Phys 11:3163. 2010..We believe this compensator can be put to clinical use, and will allow more centers to offer GRID therapy to their patients... 
Investigating the dosimetric and tumor control consequences of prostate seed loss and migrationCourtney Knaup
Department of Radiation Oncology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
Med Phys 39:3291-8. 2012..However, once implanted, the seeds are vulnerable to loss and movement. The goal of this work is to investigate the dosimetric and radiobiological effects of the types of seed loss and migration commonly seen in prostate brachytherapy...- Clinical evaluation of an immbolization system for stereotactic body radiotherapy using helical tomotherapyAlonso N Gutierrez
Department of Radiation Oncology, School of Medicine, Cancer Therapy and Research Center, The University of Texas Health Science Center San Antonio, San Antonio, TX 78229, USA
Med Dosim 36:126-9. 2011..Based on the findings, image-guided SBRT using the Body Pro-Lok™ system in conjunction with the MVCT of TomoTherapy is capable of minimizing interfractional setup error and improving treatment accuracy... - Monte Carlo modeling of a Novalis Tx Varian 6 MV with HD-120 multileaf collimatorLuis Alberto Vazquez-Quino
Cancer Therapy and Research Center, Department of Radiation Oncology, University of Texas Health Science Center at San Antonio, TX 78229 4427, USA
J Appl Clin Med Phys 13:3960. 2012..The Monte Carlo model developed in this study accurately represents the new Novalis Tx Varian linac with HD-MLC and can be used for reliable patient dose calculations... - The neutron dose equivalent evaluation and shielding at the maze entrance of a Varian Clinac 23EX treatment roomXudong Wang
University of Texas Health Science Center, San Antonio, Texas 78229, USA
Med Phys 38:1141-9. 2011..The effectiveness of borated polyethylene (BPE) boards, as a maze wall lining material, on neutron dose and photon dose reduction is also reported... - Evaluation of PTW Seven29 for tomotherapy patient-specific quality assurance and comparison with ScandiDos Delta(4)Pamela Myers
Department of Radiology and Radiation Oncology, Cancer Therapy and Research Center at University of Texas Health Science Center at San Antonio, 7979 Wurzbach Rd, San Antonio, USA
J Med Phys 37:72-80. 2012..6% (92.5-100.0%) for the Seven29/Octavius. Both the Seven29/Octavius and Delta(4) performed to a high standard of measurement accuracy and had a 90% or greater gamma percent for all plans and were considered clinically acceptable... - On the quantification of the dosimetric accuracy of collapsed cone convolution superposition (CCCS) algorithm for small lung volumes using IMRTOscar I Calvo
Department of Radiation Oncology, School of Medicine, Cancer Therapy and Research Center, The University of Texas Health Science Center San Antonio, TX, USA
J Appl Clin Med Phys 13:3751. 2012..7% in both phantoms. The profiles show a good agreement between Pinnacle3, Monte Carlo, and EDR2 film. The gamma index and the isodose lines support the result... - Treatment planning and delivery of IMRT using 6 and 18MV photon beams without flattening filterSotirios Stathakis
Department of Radiation Oncology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
Appl Radiat Isot 67:1629-37. 2009..There was however a significant decrease in the number of monitor units required for unflattened beam treatment plans due to the increase in linac output-approximately two times and four times higher for the 6 and 18 MV, respectively... - Consistency and reproducibility of the VMAT plan delivery using three independent validation methodsVaratharaj Chandraraj
Department of Radiation Oncology, University of Texas Health Science Center at San Antonio, TX, USA
J Appl Clin Med Phys 12:3373. 2011..Based on our results, we conclude that the VMAT delivery using a Varian 2100CD linear accelerator equipped with 120 MLC is highly reproducible... - Dosimetric evaluation of multi-pattern spatially fractionated radiation therapy using a multi-leaf collimator and collapsed cone convolution superposition dose calculation algorithmSotirios Stathakis
Department of Radiation Oncology, University of Texas Health Science Center San Antonio, San Antonio, TX 78229, USA
Appl Radiat Isot 67:1939-44. 2009..We employ the MLC to deliver various pattern GRID treatments to large solid tumors and dosimetrically characterize the GRID fields...