Cynthia McCollough

Summary

Affiliation: Mayo Clinic
Country: USA

Publications

  1. doi Spatial resolution improvement and dose reduction potential for inner ear CT imaging using a z-axis deconvolution technique
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 40:061904. 2013
  2. doi Diagnostic reference levels from the ACR CT Accreditation Program
    Cynthia McCollough
    Mayo Clinic, Rochester, Minnesota 55905, USA
    J Am Coll Radiol 8:795-803. 2011
  3. pmc Achieving routine submillisievert CT scanning: report from the summit on management of radiation dose in CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Radiology 264:567-80. 2012
  4. pmc In defense of body CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, 200 First St SW, East 2 Mayo Bldg, Rochester, MN 55905, USA
    AJR Am J Roentgenol 193:28-39. 2009
  5. ncbi CT dose reduction and dose management tools: overview of available options
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 26:503-12. 2006
  6. ncbi It is time to retire the computed tomography dose index (CTDI) for CT quality assurance and dose optimization. Against the proposition
    Cynthia H McCollough
    Mayo Clinic College of Medicine, Department of Radiology, Rochester, Minnesota 55905, USA
    Med Phys 33:1190-1. 2006
  7. pmc Strategies for reducing radiation dose in CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
    Radiol Clin North Am 47:27-40. 2009
  8. ncbi Experimental determination of section sensitivity profiles and image noise in electron beam computed tomography
    C H McCollough
    Department of Diagnostic Radiology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA
    Med Phys 26:287-95. 1999
  9. doi CT dose: how to measure, how to reduce
    Cynthia H McCollough
    Mayo Clinic, Rochester, MN 55905, USA
    Health Phys 95:508-17. 2008
  10. ncbi Dose performance of a 64-channel dual-source CT scanner
    Cynthia H McCollough
    CT Clinical Innovation Center, Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiology 243:775-84. 2007

Research Grants

  1. Non-Invasive Localization of Vulnerable Plaques
    Cynthia McCollough; Fiscal Year: 2009
  2. Non-Invasive Localization of Vulnerable Plaques
    Cynthia McCollough; Fiscal Year: 2009

Detail Information

Publications79

  1. doi Spatial resolution improvement and dose reduction potential for inner ear CT imaging using a z-axis deconvolution technique
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 40:061904. 2013
    ....
  2. doi Diagnostic reference levels from the ACR CT Accreditation Program
    Cynthia McCollough
    Mayo Clinic, Rochester, Minnesota 55905, USA
    J Am Coll Radiol 8:795-803. 2011
    ..The aim of this study was to assess the distribution of CT dose index (CTDI) values reported by sites undergoing ACR CT accreditation between 2002 and 2004...
  3. pmc Achieving routine submillisievert CT scanning: report from the summit on management of radiation dose in CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Radiology 264:567-80. 2012
    ....
  4. pmc In defense of body CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, 200 First St SW, East 2 Mayo Bldg, Rochester, MN 55905, USA
    AJR Am J Roentgenol 193:28-39. 2009
    ..In addition, we review available dose management and optimization techniques...
  5. ncbi CT dose reduction and dose management tools: overview of available options
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 26:503-12. 2006
    ..Modulation both angularly around the patient and along the z-axis is optimal, but the tube current must be appropriately adapted to patient size for diagnostic image quality to be achieved...
  6. ncbi It is time to retire the computed tomography dose index (CTDI) for CT quality assurance and dose optimization. Against the proposition
    Cynthia H McCollough
    Mayo Clinic College of Medicine, Department of Radiology, Rochester, Minnesota 55905, USA
    Med Phys 33:1190-1. 2006
  7. pmc Strategies for reducing radiation dose in CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
    Radiol Clin North Am 47:27-40. 2009
    ..To satisfy the ALARA principle, the dose reduction strategies described in this article must be well understood and properly used. The use of CT must also be justified for the specific diagnostic task...
  8. ncbi Experimental determination of section sensitivity profiles and image noise in electron beam computed tomography
    C H McCollough
    Department of Diagnostic Radiology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA
    Med Phys 26:287-95. 1999
    ..The CVS mode produced wider section sensitivity profiles than the SVS mode. This effect was minimized when the smallest collimator width was used, but at the expense of increased image noise...
  9. doi CT dose: how to measure, how to reduce
    Cynthia H McCollough
    Mayo Clinic, Rochester, MN 55905, USA
    Health Phys 95:508-17. 2008
    ..Therefore, patients should be reassured that the benefits of medically-justified and appropriately-performed CT examinations are associated with radiation doses that continue to decrease as technology continues to evolve...
  10. ncbi Dose performance of a 64-channel dual-source CT scanner
    Cynthia H McCollough
    CT Clinical Innovation Center, Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiology 243:775-84. 2007
    ..To prospectively compare the dose performance of a 64-channel multi-detector row computed tomographic (CT) scanner and a 64-channel dual-source CT scanner from the same manufacturer...
  11. pmc Measurement of temporal resolution in dual source CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
    Med Phys 35:764-8. 2008
    ..A demonstration of the effect of the evaluated 165 and 83 ms nominal temporal resolutions on motion artifacts in cardiac CT is provided using patient data...
  12. ncbi Coronary artery calcium: a multi-institutional, multimanufacturer international standard for quantification at cardiac CT
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
    Radiology 243:527-38. 2007
    ..To develop a consensus standard for quantification of coronary artery calcium (CAC)...
  13. ncbi Effects of CT irradiation on implantable cardiac rhythm management devices
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiology 243:766-74. 2007
    ..To prospectively measure the response of a variety of models of implantable cardiac rhythm management devices (ICRMDs) to the radiation delivered by computed tomography (CT), for both maximum and typical dose levels...
  14. ncbi Radiation exposure and pregnancy: when should we be concerned?
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 27:909-17; discussion 917-8. 2007
    ..However, although the risks are small, it is important to ensure that radiation doses are kept as low as reasonably achievable...
  15. ncbi Automatic exposure control in CT: are we done yet?
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiology 237:755-6. 2005
  16. ncbi An auxiliary CT tabletop for radiography at the time of CT
    C H McCollough
    Department of Radiology, Mayo Clinic and Mayo Foundation, Rochester, MN 55905, USA
    J Comput Assist Tomogr 25:876-80. 2001
    ..Radiographs obtained with the overhead X-ray tube and auxiliary tabletop demonstrated image quality equivalent to traditional radiographs...
  17. ncbi Image quality and dose comparison among screen-film, computed, and CT scanned projection radiography: applications to CT urography
    C H McCollough
    Department of Radiology, E2 A, Mayo Clinic and Foundation, 200 First St SW, Rochester, MN 55905, USA
    Radiology 221:395-403. 2001
    ....
  18. ncbi Patient dose in cardiac computed tomography
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic and Mayo Foundation, Rochester, MN 55905, USA
    Herz 28:1-6. 2003
    ..Yet, many physicians who perform or order these exams may be unfamiliar with the radiation doses that are delivered to the patient during specific cardiac CT examinations...
  19. ncbi Motion artifacts in subsecond conventional CT and electron-beam CT: pictorial demonstration of temporal resolution
    C H McCollough
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 20:1675-81. 2000
    ..5 revolution per second. Over the range of physiologic speeds examined, the images provide visually compelling evidence of the effect of improving temporal resolution in CT...
  20. ncbi The phantom portion of the American College of Radiology (ACR) computed tomography (CT) accreditation program: practical tips, artifact examples, and pitfalls to avoid
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
    Med Phys 31:2423-42. 2004
    ..Additionally, a review of CT dose measurement techniques and calculations will enable the physicist to better assist sites where typical exam doses are above the ACR reference values...
  21. ncbi Calculation of effective dose
    C H McCollough
    Department of Diagnostic Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 27:828-37. 2000
    ..In this manner, the detriment associated with partial or organ-specific irradiations, as are common in diagnostic radiology, can be assessed...
  22. ncbi Performance evaluation of a multi-slice CT system
    C H McCollough
    Department of Diagnostic Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 26:2223-30. 1999
    ....
  23. doi How effective is effective dose as a predictor of radiation risk?
    Cynthia H McCollough
    Department of Radiology, Mayo Clinic, 200 First St, SW, Rochester, MN 55905, USA
    AJR Am J Roentgenol 194:890-6. 2010
    ..CONCLUSION: Effective dose is not the risk for any one individual. Due to the inherent uncertainties and oversimplifications involved, effective dose should not be used for epidemiologic studies or for estimating population risks...
  24. doi CT dosimetry: comparison of measurement techniques and devices
    John A Bauhs
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 28:245-53. 2008
    ..Both CTDI and point dose measurement are valuable for evaluating CT scanner output and estimating patient dose...
  25. doi Estimating effective dose for CT using dose-length product compared with using organ doses: consequences of adopting International Commission on Radiological Protection publication 103 or dual-energy scanning
    Jodie A Christner
    Mayo Clinic Rochester, 200 First St, SW, Rochester, MN 55905, USA
    AJR Am J Roentgenol 194:881-9. 2010
    ....
  26. doi Differentiation of calcium oxalate monohydrate and calcium oxalate dihydrate stones using quantitative morphological information from micro-computerized and clinical computerized tomography
    Xinhui Duan
    Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    J Urol 189:2350-6. 2013
    ..We differentiated calcium oxalate monohydrate and calcium oxalate dihydrate kidney stones using micro and clinical computerized tomography images...
  27. ncbi Metal artifact suppression from reformatted projections in multislice helical CT using dual-front active contours
    Hua Li
    Department of Radiology, Mayo Clinic College of Medicine Rochester, 200 First Avenue, SW, Rochester, Minnesota 55905, USA
    Med Phys 37:5155-64. 2010
    ....
  28. pmc Renal perfusion and hemodynamics: accurate in vivo determination at CT with a 10-fold decrease in radiation dose and HYPR noise reduction
    Xin Liu
    Department of Radiology, Divisions of Nephrology and Hypertension, CT Clinical Innovation Center, Mayo Clinic, Rochester, MN 55905, USA
    Radiology 253:98-105. 2009
    ....
  29. pmc Radiation dose to the fetus for pregnant patients undergoing multidetector CT imaging: Monte Carlo simulations estimating fetal dose for a range of gestational age and patient size
    Erin Angel
    Department of Radiology, David A Geffen School of Medicine, University of California at Los Angeles, 924 Westwood Blvd, Suite 650, Los Angeles, CA 90024, USA
    Radiology 249:220-7. 2008
    ....
  30. pmc Understanding the relationship between image quality and motion velocity in gated computed tomography: preliminary work for 4-dimensional musculoskeletal imaging
    Shian Chao Tay
    Orthopedics Biomechanics Laboratory, CT Innovation Center, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
    J Comput Assist Tomogr 32:634-9. 2008
    ..To study the effect of motion velocity on image quality to determine the requirements for 4-dimensional (4D; ie, 3D + time) musculoskeletal computed tomographic (CT) imaging...
  31. pmc Monte Carlo simulations to assess the effects of tube current modulation on breast dose for multidetector CT
    Erin Angel
    Department of Radiology, UCLA David A Geffen School of Medicine, University of California at Los Angeles, 924 Westwood Blvd Ste 650, Los Angeles, CA 90024, USA
    Phys Med Biol 54:497-512. 2009
    ..The results indicate that radiation dose to glandular breast tissue generally decreases with the use of tube current modulated CT acquisition, but that patient size (and in some cases patient positioning) may affect dose reduction...
  32. pmc Dual-source dual-energy CT with additional tin filtration: Dose and image quality evaluation in phantoms and in vivo
    Andrew N Primak
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    AJR Am J Roentgenol 195:1164-74. 2010
    ..The objective of this study was to investigate the effect on radiation dose and image quality of the use of additional spectral filtration for dual-energy CT using dual-source CT (DSCT)...
  33. doi Detectability of urinary stones on virtual nonenhanced images generated at pyelographic-phase dual-energy CT
    Naoki Takahashi
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Radiology 256:184-90. 2010
    ..To evaluate the detectability of urinary stones on virtual nonenhanced images generated at pyelographic-phase dual-energy computed tomography (CT)...
  34. ncbi Evaluation of porcine myocardial microvascular permeability and fractional vascular volume using 64-slice helical computed tomography (CT)
    Elena Daghini
    Department of Medicine, Division of Nephrology and Hypertension, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
    Invest Radiol 42:274-82. 2007
    ....
  35. doi Applications of dual-energy CT in urologic imaging: an update
    Robert Hartman
    Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
    Radiol Clin North Am 50:191-205, v. 2012
    ..The unique postprocessed image sets, including virtual noncontrast, iodine overlay, and stone composition, are described...
  36. pmc Evaluation of non-linear blending in dual-energy computed tomography
    David R Holmes
    Biomedical Imaging Resource, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, United States
    Eur J Radiol 68:409-13. 2008
    ..Further study on selection of blending parameters and lesion conspicuity in non-linear blended images is being pursued...
  37. doi Dose and image quality evaluation of a dedicated cone-beam CT system for high-contrast neurologic applications
    Lifeng Yu
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    AJR Am J Roentgenol 194:W193-201. 2010
    ..The purpose of our study was to evaluate the dose and image quality performance of a dedicated cone-beam CT (CBCT) scanner in comparison with an MDCT scanner...
  38. doi Metal artifact reduction from reformatted projections for hip prostheses in multislice helical computed tomography: techniques and initial clinical results
    Lifeng Yu
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
    Invest Radiol 44:691-6. 2009
    ..The purpose of this work was to develop a projection-based method for reducing metal artifacts caused by hip prostheses in multislice helical CT...
  39. ncbi Radiation dose in computed tomography of the heart
    Richard L Morin
    Department of Radiology, Mayo Clinic, Jacksonville, Fla 32224, USA
    Circulation 107:917-22. 2003
  40. pmc Radiation dose and safety in cardiac computed tomography
    Thomas C Gerber
    Division of Cardiovascular Diseases, Mayo Clinic, Jacksonville, FL 32224, USA
    Cardiol Clin 27:665-77. 2009
    ....
  41. pmc Optimal image reconstruction phase at low and high heart rates in dual-source CT coronary angiography
    Philip A Araoz
    Mayo Clinic, Rochester, MN, USA
    Int J Cardiovasc Imaging 25:837-45. 2009
    ..0001). Using DSCT scanning, optimal image sharpness is obtained in end-diastole at low heart rates and in end-systole in high heart rates...
  42. pmc Quantitative imaging of element composition and mass fraction using dual-energy CT: three-material decomposition
    Xin Liu
    Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 36:1602-9. 2009
    ..Clinically, this may be applied to measure the mass fraction of any chemical element in a three-material mixture of solutions without the requirement of volume conservation...
  43. pmc Dual-source computed tomographic temporal resolution provides higher image quality than 64-detector temporal resolution at low heart rates
    Philip A Araoz
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    J Comput Assist Tomogr 34:64-9. 2010
    ..To compare coronary image quality at temporal resolutions associated with dual-source computed tomography (DSCT; 83 milliseconds) and 64-detector row scanning (165 milliseconds)...
  44. ncbi Automatic selection of tube potential for radiation dose reduction in CT: a general strategy
    Lifeng Yu
    Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 37:234-43. 2010
    ..The purpose of this work was to develop a general strategy that allows for automatic tube potential selection for each individual patient and each diagnostic task...
  45. ncbi Evaluation of z-axis resolution and image noise for nonconstant velocity spiral CT data reconstructed using a weighted 3D filtered backprojection (WFBP) reconstruction algorithm
    Jodie A Christner
    Mayo Clinic Rochester, 200 First Street SW, Rochester, Minnesota 55905, USA
    Med Phys 37:897-906. 2010
    ....
  46. ncbi State-of-the-art imaging with 64-channel multidetector CT angiography
    Terri J Vrtiska
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
    Perspect Vasc Surg Endovasc Ther 17:3-8. 2005
    ..Future applications of 64-channel technology for preoperative and postoperative vascular surgery and endovascular techniques are also described...
  47. doi Metal artifact suppression from reformatted projections in multi-slice helical CT using dual-front active contours
    Hua Li
    Department of Radiology, Mayo Clinic, Rochester, MN 55901, USA
    Conf Proc IEEE Eng Med Biol Soc 2009:993-6. 2009
    ..The artifacts caused by dense metal implants were better suppressed...
  48. ncbi Population-based analysis of the relationship of whole bone strength indices and fall-related loads to age- and sex-specific patterns of hip and wrist fractures
    B Lawrence Riggs
    Endocrine Research Unit, Division of Endocrinology and Metabolism, Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
    J Bone Miner Res 21:315-23. 2006
    ..These load/strength ratios more closely simulated patterns of wrist and hip fractures occurring in the same population than did measurement of vBMD...
  49. ncbi Imaging evaluation and treatment of nephrolithiasis: an update
    Terri J Vrtiska
    Department of Radiology, Mayo Clinic, USA
    Minn Med 93:48-51. 2010
    ..Improvements in percutaneous therapy have led to less-invasive and less-costly treatments for nephrolithiasis. This article describes some of these new approaches to diagnosing and caring for patients with renal stone disease...
  50. ncbi Population-based study of age and sex differences in bone volumetric density, size, geometry, and structure at different skeletal sites
    B Lawrence Riggs
    Endocrine Research Unit, Division of Endocrinology and Metabolism, Department of Internal Medicine, Mayo Clinic College of Medicine, 200 First Street SW, 5 194 Joseph, Rochester, MN 55905, USA
    J Bone Miner Res 19:1945-54. 2004
    ..Over life, the cross-sectional area of the vertebrae and proximal femur increased by approximately 15% in both sexes, whereas vBMD at these sites decreased by 39-55% and 34-46%, respectively, with greater decreases in women than in men...
  51. ncbi CT urography
    Akira Kawashima
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 24:S35-54; discussion S55-8. 2004
    ..Further studies evaluating large numbers of patients with various urothelial abnormalities will be necessary to determine the optimal CT urography technique for clinical practice...
  52. pmc Image quality optimization and evaluation of linearly mixed images in dual-source, dual-energy CT
    Lifeng Yu
    Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 36:1019-24. 2009
    ....
  53. doi Comparative study of two image space noise reduction methods for computed tomography: bilateral filter and nonlocal means
    Juan C Ramirez Giraldo
    CT Clinical Innovation Center, Dept of Radiology, Mayo Clinic, Rochester, MN, USA
    Conf Proc IEEE Eng Med Biol Soc 2009:3529-32. 2009
    ..Care must be taken when choosing the NLM parameters in order to minimize the generation of artifacts that could possibly compromise diagnostic value...
  54. ncbi Automated polyp measurement with CT colonography: preliminary observations in a phantom colon model
    Joel G Fletcher
    Department of Radiology, Mayo Clinic, 200 First St SW, Mayo E 2, Rochester, MN 55905, USA
    AJR Am J Roentgenol 188:945-52. 2007
    ..The purpose of this study was to evaluate the accuracy and precision of polyp measurements obtained with an automated tool in a colon phantom containing polyps of multiple sizes, morphologic types, and locations...
  55. ncbi Prevalence and significance of incidental extracardiac findings at 64-multidetector coronary CTA
    Jacobo Kirsch
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    J Thorac Imaging 22:330-4. 2007
    ..Computed tomography (CT) angiography of the coronaries has the ability to depict extracardiac lesions in the visualized thorax and upper abdomen. These incidental lesions can often present a challenge to physicians...
  56. pmc Noninvasive differentiation of uric acid versus non-uric acid kidney stones using dual-energy CT
    Andrew N Primak
    CT Clinical Innovation Center, Department of Radiology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA
    Acad Radiol 14:1441-7. 2007
    ..To determine the accuracy and sensitivity for dual-energy computed tomography (DECT) discrimination of uric acid (UA) stones from other (non-UA) renal stones in a commercially implemented product...
  57. ncbi Relationship between noise, dose, and pitch in cardiac multi-detector row CT
    Andrew N Primak
    CT Clinical Innovation Center, Department of Radiology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA
    Radiographics 26:1785-94. 2006
    ..For a particular application, the higher dose resulting from faster rotation speeds should be justified by the clinical benefits of the improved temporal resolution...
  58. ncbi Physics and dosimetry in computed tomography
    Richard L Morin
    Department of Radiology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
    Cardiol Clin 21:515-20. 2003
    ....
  59. ncbi Large-vessel distensibility measurement with electrocardiographically gated multidetector CT: phantom study and initial experience
    Jie Zhang
    Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
    Radiology 245:258-66. 2007
    ....
  60. doi Dual-energy and dual-source CT: is there a role in the abdomen and pelvis?
    Joel G Fletcher
    Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
    Radiol Clin North Am 47:41-57. 2009
    ..This article summarizes and reviews current and potential applications for dual-energy and dual-source CT in the abdomen and pelvis...
  61. ncbi Assessment of renal hemodynamics and function in pigs with 64-section multidetector CT: comparison with electron-beam CT
    Elena Daghini
    Department of Medicine, Division of Nephrology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
    Radiology 243:405-12. 2007
    ..To prospectively evaluate the feasibility of obtaining reliable measurements of renal hemodynamics and function by using 64-section multidetector CT...
  62. doi Dose reduction in helical CT: dynamically adjustable z-axis X-ray beam collimation
    Jodie A Christner
    Department of Radiology, Mayo Clinic Rochester, 200 First St SW, East 2 Mayo Bldg, Rochester, MN 55905, USA
    AJR Am J Roentgenol 194:W49-55. 2010
    ..The purpose of this study was to measure the dose reduction achieved with dynamically adjustable z-axis collimation...
  63. doi Spatial resolution and radiation dose of a 64-MDCT scanner compared with published CT urography protocols
    Terri J Vrtiska
    Department of Radiology, Mayo Clinic, 200 First St, SW, Rochester, MN 55905, USA
    AJR Am J Roentgenol 192:941-8. 2009
    ..The objective of our study was to compare the spatial resolution and effective dose from 64-MDCT with several published CT urography protocols...
  64. pmc Analysis of heart rate and heart rate variation during cardiac CT examinations
    Jie Zhang
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN 55455, USA
    Acad Radiol 15:40-8. 2008
    ..We sought to examine heart rate and heart rate variability during cardiac computed tomography (CT)...
  65. ncbi Four-dimensional computed tomographic imaging in the wrist: proof of feasibility in a cadaveric model
    Shian Chao Tay
    Orthopedics Biomechanics Laboratory, Mayo Clinic College of Medicine, Rochester, MN, USA
    Skeletal Radiol 36:1163-9. 2007
    ..The purpose of this work was to assess the feasibility of using retrospectively gated spiral computed tomography (CT) to perform four-dimensional (4D) imaging of the moving wrist joint...
  66. doi Selection of appropriate computed tomographic image reconstruction algorithms for a quantitative multicenter trial of diffuse lung disease
    Jie Zhang
    Department of Radiology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
    J Comput Assist Tomogr 32:233-7. 2008
    ..To determine the appropriate computed tomographic (CT) image reconstruction algorithms for a quantitative multicenter trial of diffuse lung disease...
  67. doi Abdominal findings in hereditary hemorrhagic telangiectasia: pictorial essay on 2D and 3D findings with isotropic multiphase CT
    Hassan Siddiki
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 28:171-84. 2008
    ..Coronal maximum intensity projection images are particularly helpful in depiction of small hepatic vascular lesions...
  68. ncbi Comparative performance of two polyp detection systems on CT colonography
    J G Fletcher
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    AJR Am J Roentgenol 189:277-82. 2007
    ..The purpose of our study was to evaluate two current automatic polyp detection systems to determine their sensitivity and false-positive rate in patients who have undergone CT colonography and subsequent endoscopy...
  69. ncbi Three-dimensional CT virtual endoscopy in the detection of simulated tumors in a novel phantom bladder and ureter model
    Shane T Russell
    Department of Urology, Mayo Clinic, Rochester Minnesota 55905, USA
    J Endourol 19:188-92. 2005
    ..Cystoscopy and ureteroscopy have limitations in the evaluation for urothelial tumors, and both are invasive. We studied the utility of three-dimensional (3D) CT virtual endoscopy in phantom models...
  70. doi Assessment of appropriateness of indications for CT enterography in younger patients
    Luis S Guimaraes
    Department of Radiology, Mayo Clinic, Rochester, Minnestota 55905, USA
    Inflamm Bowel Dis 16:226-32. 2010
    ..We sought to determine the appropriateness of CTEs based on clinical indication in patients < or =35 years old, and the potential impact of evolution of practice to alternative magnetic resonance enterography (MRE)...
  71. doi Kidney stone volume estimation from computerized tomography images using a model based method of correcting for the point spread function
    Xinhui Duan
    Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    J Urol 188:989-95. 2012
    ..We propose a method to improve the accuracy of volume estimation of kidney stones from computerized tomography images...
  72. ncbi Crohn Disease: mural attenuation and thickness at contrast-enhanced CT Enterography--correlation with endoscopic and histologic findings of inflammation
    Kale D Bodily
    Mayo Clinic College of Medicine, Rochester, Minn 55905, USA
    Radiology 238:505-16. 2006
    ....
  73. pmc Dual-energy CT iodine-subtraction virtual unenhanced technique to detect urinary stones in an iodine-filled collecting system: a phantom study
    Naoki Takahashi
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    AJR Am J Roentgenol 190:1169-73. 2008
    ..The objective of our study was to evaluate the feasibility of virtual unenhanced images reconstructed from a dual-energy CT scan to depict urinary stones in an iodine solution in a phantom study...
  74. pmc Diagnostic ionizing radiation exposure in a population-based cohort of patients with inflammatory bowel disease
    Joanna M Peloquin
    Department of Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA
    Am J Gastroenterol 103:2015-22. 2008
    ..However, the extent of radiation exposure in these patients is unknown...
  75. ncbi Quality assurance for computed-tomography simulators and the computed-tomography-simulation process: report of the AAPM Radiation Therapy Committee Task Group No. 66
    Sasa Mutic
    Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri 63110, USA
    Med Phys 30:2762-92. 2003
    ..This report was prepared by Task Group No. 66 of the AAPM Radiation Therapy Committee. It was approved by the Radiation Therapy Committee and by the AAPM Science Council...
  76. ncbi First performance evaluation of a dual-source CT (DSCT) system
    Thomas G Flohr
    Siemens Medical Solutions, Computed Tomography CTE PA, Siemensstr 1, 91301, Forchheim, Germany
    Eur Radiol 16:256-68. 2006
    ..As a potential application of the dual-energy acquisition mode, the automatic separation of bones and iodine-filled vessels is demonstrated...
  77. ncbi Computer-aided detection of polyps in a colon phantom: effect of scan orientation, polyp size, collimation, and dose
    Shuo Hung Ling
    Institute for Medical Imaging and Image Analysis, Department of Electrical and Computer Engineering, George Washington University, Washington, DC, USA
    J Comput Assist Tomogr 26:1013-8. 2002
    ..To determine the importance of polyp size, orientation to the scan plane, collimation, scanner type (single or multislice helical), and radiation dose on computed tomography (CT) colonography computer-aided detection...
  78. ncbi Age- and sex-specific differences in the factor of risk for vertebral fracture: a population-based study using QCT
    Mary L Bouxsein
    Orthopedic Biomechanics Laboratory, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    J Bone Miner Res 21:1475-82. 2006
    ..With age, vertebral strength declined and Phi(vert) increased significantly more in women than men. Age- and sex-specific differences in Phi(vert) closely resembled previously reported vertebral fracture incidence...
  79. ncbi Standardization in CT terminology: a physicist's perspective
    Cynthia H McCollough
    Radiology 241:661-2. 2006

Research Grants4

  1. Non-Invasive Localization of Vulnerable Plaques
    Cynthia McCollough; Fiscal Year: 2009
    ....
  2. Non-Invasive Localization of Vulnerable Plaques
    Cynthia McCollough; Fiscal Year: 2009
    ....