Laurence Parker

Summary

Affiliation: Thomas Jefferson University
Country: USA

Publications

  1. doi request reprint Geographic variation in the utilization of noninvasive diagnostic imaging: national medicare data, 1998-2007
    Laurence Parker
    Department of Radiology, Center for Research on the Utilization of Imaging Services, Thomas Jefferson University Hospital, 132 S 10th St, 10th Fl Main, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 194:1034-9. 2010
  2. doi request reprint Musculoskeletal imaging: medicare use, costs, and potential for cost substitution
    Laurence Parker
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania PA 19107, USA
    J Am Coll Radiol 5:182-8. 2008
  3. ncbi request reprint Comparison of recent utilization trends in radionuclide myocardial perfusion imaging among radiologists and cardiologists
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 2:821-4. 2005
  4. ncbi request reprint The controversy over advanced cardiovascular imaging: relative roles of radiologists, cardiologists, and other physicians in CT and MRI of the cardiovascular system
    David C Levin
    Jefferson Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 3:16-8. 2006
  5. doi request reprint Trends in PET scanner ownership and leasing by nonradiologist physicians
    Rajan Agarwal
    Department of Radiology, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    J Am Coll Radiol 7:187-91. 2010
  6. ncbi request reprint Who gets paid for diagnostic imaging, and how much?
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 1:931-5. 2004
  7. ncbi request reprint Recent trends in utilization of cardiovascular imaging: how important are they for radiology?
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 2:736-9. 2005
  8. ncbi request reprint Analysis of radiologists' imaging workload trends by place of service
    David C Levin
    Center for Research on Utilization of Imaging Services CRUISE, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania HealthHelp, Inc, Houston, Texas Electronic address
    J Am Coll Radiol 10:760-3. 2013
  9. ncbi request reprint Rapid multiplanar abdominal survey using MRI with the steady-state free-precession technique
    Michael V Dutka
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Magn Reson Imaging 27:198-203. 2008
  10. ncbi request reprint Current practice patterns and recent trends in breast biopsy among radiologists and surgeons
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 3:707-9. 2006

Detail Information

Publications86

  1. doi request reprint Geographic variation in the utilization of noninvasive diagnostic imaging: national medicare data, 1998-2007
    Laurence Parker
    Department of Radiology, Center for Research on the Utilization of Imaging Services, Thomas Jefferson University Hospital, 132 S 10th St, 10th Fl Main, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 194:1034-9. 2010
    ..This study provides an overview of geographic variation in noninvasive diagnostic imaging utilization in the Medicare population over the period 1998 to 2007...
  2. doi request reprint Musculoskeletal imaging: medicare use, costs, and potential for cost substitution
    Laurence Parker
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania PA 19107, USA
    J Am Coll Radiol 5:182-8. 2008
    ....
  3. ncbi request reprint Comparison of recent utilization trends in radionuclide myocardial perfusion imaging among radiologists and cardiologists
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 2:821-4. 2005
    ..To study recent practice patterns in radionuclide myocardial perfusion imaging (MPI) and related procedures among radiologists, cardiologists, and other physicians...
  4. ncbi request reprint The controversy over advanced cardiovascular imaging: relative roles of radiologists, cardiologists, and other physicians in CT and MRI of the cardiovascular system
    David C Levin
    Jefferson Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 3:16-8. 2006
    ..The purpose of this study was to determine the relative roles of the different specialties in these procedures...
  5. doi request reprint Trends in PET scanner ownership and leasing by nonradiologist physicians
    Rajan Agarwal
    Department of Radiology, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    J Am Coll Radiol 7:187-91. 2010
    ..The aim of this study was to examine growth trends in ownership or leasing of private-office PET scanners by nonradiologist physicians...
  6. ncbi request reprint Who gets paid for diagnostic imaging, and how much?
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 1:931-5. 2004
    ..To determine the apportionment of Medicare Part B payments for noninvasive diagnostic imaging among radiologists and other specialists and to ascertain the trends in these payments over a recent 5-year period...
  7. ncbi request reprint Recent trends in utilization of cardiovascular imaging: how important are they for radiology?
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 2:736-9. 2005
    ..To determine (a) the role cardiovascular imaging (CVI) plays within the spectrum of noninvasive diagnostic imaging (NDI), (b) the role radiologists play in CVI, and (c) recent trends in CVI workload among radiologists and cardiologists...
  8. ncbi request reprint Analysis of radiologists' imaging workload trends by place of service
    David C Levin
    Center for Research on Utilization of Imaging Services CRUISE, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania HealthHelp, Inc, Houston, Texas Electronic address
    J Am Coll Radiol 10:760-3. 2013
    ..The aim of this study was to determine what proportion of noninvasive diagnostic imaging (NDI) work done by radiologists occurred in each of the 4 primary places of service where imaging is conducted...
  9. ncbi request reprint Rapid multiplanar abdominal survey using MRI with the steady-state free-precession technique
    Michael V Dutka
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Magn Reson Imaging 27:198-203. 2008
    ..To retrospectively evaluate the sensitivity, specificity, and positive and negative predictive values of steady-state free-precession (SSFP) survey MRI of the abdomen...
  10. ncbi request reprint Current practice patterns and recent trends in breast biopsy among radiologists and surgeons
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 3:707-9. 2006
    ..To ascertain the relative roles of radiologists and surgeons in breast biopsy...
  11. ncbi request reprint Recent trends in utilization rates of noncardiac thoracic imaging: an example of how imaging growth might be controlled
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 4:886-9. 2007
    ..To study trends in the utilization of the various noncardiac thoracic imaging modalities in the Medicare population in recent years and to compare the roles of radiologists and nonradiologist physicians...
  12. doi request reprint Ownership or leasing of CT scanners by nonradiologist physicians: a rapidly growing trend that raises concern about self-referral
    David C Levin
    Department of Radiology, Center for Research on Utilization of Imaging Services, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 5:1206-9. 2008
    ..The aim of this study was to examine recent nationwide trends in the ownership or leasing of computed tomographic (CT) scanners in private offices by nonradiologist physicians...
  13. ncbi request reprint The changing roles of radiologists, cardiologists, and vascular surgeons in percutaneous peripheral arterial interventions during a recent five-year interval
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 2:39-42. 2005
    ....
  14. pmc Frequency of undetected thyroid nodules in a large I-131-exposed population repeatedly screened by ultrasonography: results from the Ukrainian-American cohort study of thyroid cancer and other thyroid diseases following the Chornobyl accident
    Patrick O'Kane
    Radiology Department, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    Thyroid 20:959-64. 2010
    ..Our objective was to assess in a repeatedly screened I-131-exposed population the frequency with which a thyroid nodule could be retrospectively identified on ultrasonography studies preceding the one on which it was initially detected...
  15. doi request reprint Exophytic renal masses: angular interface with renal parenchyma for distinguishing benign from malignant lesions at MR imaging
    Sachit K Verma
    Department of Radiology, Thomas Jefferson University Hospital, 132 S 10th St, Philadelphia, PA 19107, USA
    Radiology 255:501-7. 2010
    ..To retrospectively determine whether benign exophytic renal masses can be distinguished from renal cell carcinoma (RCC) on the basis of angular interface at single-shot fast spin-echo (SE) T2-weighted magnetic resonance (MR) imaging...
  16. doi request reprint The effect of the controversial US Preventive Services Task Force recommendations on the use of screening mammography
    Richard E Sharpe
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 10:21-4. 2013
    ..The aim of this study was to ascertain the effect of these recommendations on the utilization of screening mammography in the Medicare population...
  17. doi request reprint Recent trends in utilization rates of abdominal imaging: the relative roles of radiologists and nonradiologist physicians
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania, USA
    J Am Coll Radiol 5:744-7. 2008
    ..To study recent trends in the utilization of abdominal imaging in the Medicare population...
  18. doi request reprint Medicare payments for noninvasive diagnostic imaging are now higher to nonradiologist physicians than to radiologists
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 8:26-32. 2011
    ..Yet nonradiologists have become increasingly aggressive in their performance and interpretation of imaging. The purpose of this study was to track overall Medicare payments to radiologists and nonradiologist physicians in recent years...
  19. ncbi request reprint Recent trends in utilization of vascular ultrasound among radiologists, surgeons, cardiologists, and other physicians
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 4:125-7. 2007
    ..To determine how much vascular ultrasound is performed by the various medical specialties and to assess the utilization trends among them in recent years...
  20. ncbi request reprint The effect of the introduction of MR and CT angiography on the utilization of catheter angiography for peripheral arterial disease
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Penn, USA
    J Am Coll Radiol 4:457-60. 2007
    ....
  21. ncbi request reprint Comparative increases in utilization rates of ultrasound examinations among radiologists, cardiologists, and other physicians from 1993 to 2001
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 1:549-52. 2004
    ..To ascertain changes in the utilization rates of diagnostic ultrasound among radiologists, cardiologists, and other physicians in recent years...
  22. doi request reprint Recent shifts in place of service for noninvasive diagnostic imaging: have hospitals missed an opportunity?
    David C Levin
    Department of Radiology, Center for Research on Utilization of Imaging Services, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 6:96-9. 2009
    ..The aim of this study was to examine recent shifts in place of service for noninvasive diagnostic imaging (NDI) and determine whether hospitals have lost business to private outpatient imaging facilities...
  23. ncbi request reprint Endovascular repair vs open surgical repair of abdominal aortic aneurysms: comparative utilization trends from 2001 to 2006
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania, USA
    J Am Coll Radiol 6:506-9. 2009
    ..The aim of this study was to determine to what extent EVAR is replacing OSR, whether the frequency of treatment is increasing with the advent of the less invasive approach, and which specialties are performing the procedures...
  24. ncbi request reprint The increasing role of radiologists in thoracic diagnosis: more thoracic biopsies are performed percutaneously
    Richard E Sharpe
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania Electronic address
    J Am Coll Radiol 10:770-3. 2013
    ..The rate of thoracic biopsies overall and by type of biopsy from 1998 to 2010 is not known. The aim of this study was to examine the utilization rate of various types of thoracic biopsies within the Medicare population...
  25. doi request reprint Trends in the utilization of outpatient advanced imaging after the deficit reduction act
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania, USA
    J Am Coll Radiol 9:27-32. 2012
    ..The aim of this study was to see if these developments occurred during the years after the DRA...
  26. doi request reprint Noncardiac point-of-care ultrasound by nonradiologist physicians: how widespread is it?
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 8:772-5. 2011
    ..The use of point-of-care (POC) ultrasound by nonradiologist physicians has recently been advocated. The aim of this study was to see how widespread this practice is...
  27. doi request reprint Trends in utilization rates of the various imaging modalities in emergency departments: nationwide Medicare data from 2000 to 2008
    Vijay M Rao
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 8:706-9. 2011
    ..To study utilization trends in the various imaging modalities in emergency departments (EDs) over a recent multiyear period...
  28. doi request reprint The disproportionate effects of the Deficit Reduction Act of 2005 on radiologists' private office MRI and CT practices compared with those of other physicians
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 6:620-5. 2009
    ..The purpose of this study was therefore to compare the effects of the DRA on the in-office MRI and CT practices of radiologists and NRPs...
  29. doi request reprint How widely is computer-aided detection used in screening and diagnostic mammography?
    Vijay M Rao
    Department of Radiology, Jefferson Medical College, Philadelphia, PA, USA
    J Am Coll Radiol 7:802-5. 2010
    ..The aim of this study was to determine how widely computer-aided detection (CAD) is used in screening and diagnostic mammography and to see if there are differences between hospital facilities and private offices...
  30. doi request reprint Recent payment and utilization trends in radionuclide myocardial perfusion imaging: comparison between self-referral and referral to radiologists
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 6:437-41. 2009
    ..The aim of this study was to examine the effects of self-referral by comparing recent trends in payments and utilization rates for radionuclide myocardial perfusion imaging (MPI) among radiologists and cardiologists between 1998 and 2006...
  31. ncbi request reprint Practice patterns of radiologists and nonradiologists in utilization of noninvasive diagnostic imaging among the Medicare population 1993-1999
    Andrea J Maitino
    Department of Radiology, Thomas Jefferson University, Suite 3390, Gibbon Bldg, 111 S 11th St, Philadelphia, PA 19107, USA
    Radiology 228:795-801. 2003
    ..To compare nationwide trends in noninvasive diagnostic imaging (NDI) practice patterns of radiologists and of nonradiologists among the Medicare population during the 6 years from 1993 to 1999...
  32. doi request reprint Physician orders contribute to high-tech imaging slowdown
    David C Levin
    Thomas Jefferson University, Philadelphia, Pennsylvania, USA
    Health Aff (Millwood) 29:189-95. 2010
    ..More likely, there has been a change in physicians' ordering patterns, possibly due to the influence of radiology business management companies (RBMs) and imaging guidelines promulgated by specialty societies...
  33. ncbi request reprint Inferior vena cava encirclement by caudate lobe hypertrophy: evaluation by MRI and CT and its impact on caval preservation during orthotopic liver transplantation
    Rashi I Mehta
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
    Abdom Imaging 35:322-7. 2010
    ..We sought to evaluate the incidence of IVC encirclement by hepatic parenchyma using preoperative MRI and CT and its effect on surgical technique and complications...
  34. ncbi request reprint Does extended-field-of-view sonography improve interrater reliability for the detection of rotator cuff muscle atrophy?
    Eoin C Kavanagh
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA, USA
    AJR Am J Roentgenol 190:27-31. 2008
    ..We hypothesized that extended-field-of-view (EFOV) sonography would allow greater interrater reliability than conventional sonography for the evaluation of rotator cuff muscle atrophy...
  35. ncbi request reprint Compensated hepatitis C: unenhanced MR imaging correlated with pathologic grading and staging
    Donald G Mitchell
    Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
    Abdom Imaging 33:58-64. 2008
    ..We prospectively examined unenhanced MR imaging findings in relation to pathologic fibrosis, inflammation and steatosis in patients with compensated chronic hepatitis C viral infection (HCV)...
  36. ncbi request reprint The increasing role of nonradiologists in performing ultrasound-guided invasive procedures
    Richard E Sharpe
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania Electronic address
    J Am Coll Radiol 10:859-63. 2013
    ..This study aims to document recent trends in utilization for USGP in the Medicare population...
  37. doi request reprint The recent reversal of the growth trend in MRI: a harbinger of the future?
    Richard E Sharpe
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 10:599-602. 2013
    ..However, the most recent trends in the utilization of MR are not known. The aim of this study was to quantify trends in MR utilization overall and by body system from 1998 to 2010 in the Medicare population...
  38. doi request reprint Recent reimbursement changes and their effect on hospital and private office use of myocardial perfusion imaging
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 10:198-201. 2013
    ..The aims of this study were to examine recent trends in the utilization of radionuclide myocardial perfusion imaging (MPI) and to reflect on their causes and their implications for radiologists...
  39. pmc Imaging algorithms for evaluating suspected rotator cuff disease: Society of Radiologists in Ultrasound consensus conference statement
    Levon N Nazarian
    Department of Radiology, Thomas Jefferson University Hospital, 763E Main Building, 132 S Tenth St, Philadelphia, PA 19107 5244, USA
    Radiology 267:589-95. 2013
    ..The panel hopes that these recommendations will lead to greater uniformity in rotator cuff imaging and more cost-effective care for patients suspected of having rotator cuff abnormality...
  40. ncbi request reprint The sharp reductions in medicare payments for noninvasive diagnostic imaging in recent years: will they satisfy the federal policymakers?
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 9:643-7. 2012
    ..The aim of this study was to examine recent trends in Medicare reimbursements for noninvasive diagnostic imaging (NDI)...
  41. doi request reprint Dramatically increased musculoskeletal ultrasound utilization from 2000 to 2009, especially by podiatrists in private offices
    Richard E Sharpe
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 9:141-6. 2012
    ..The purpose of this study was to document trends in MSK ultrasound utilization from 2000 to 2009 within the Medicare population...
  42. doi request reprint Recent trends in mammography utilization in the Medicare population: is there a cause for concern?
    Vijay M Rao
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 5:652-6. 2008
    ..Recent published reports have shown a decline in the mammography screening rate in women over age 40, but it is not known whether this trend is a reason for concern in the Medicare population...
  43. doi request reprint Ownership or leasing of MRI facilities by nonradiologist physicians is a rapidly growing trend
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 5:105-9. 2008
    ..To study growth trends in the ownership of magnetic resonance imaging (MRI) examinations by nonradiologist physicians who either own the equipment outright or are involved in scan leasing arrangements...
  44. doi request reprint Bending the curve: the recent marked slowdown in growth of noninvasive diagnostic imaging
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, 132 S 10th St, Main 1090, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 196:W25-9. 2011
    ..The purpose of this article is to determine whether there has been any change in the rapid growth pattern that has characterized noninvasive diagnostic imaging in recent years...
  45. doi request reprint The lack of growth in use of coronary CT angiography: is it being appropriately used?
    David C Levin
    Center for Research on Utilization of Imaging Services CRUISE, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Main 1090, 132S 10th St, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 196:862-7. 2011
    ..The purpose of this article is to study recent utilization trends in coronary CT angiography (CTA) and compare them with radionuclide myocardial perfusion imaging (MPI), a competing procedure...
  46. ncbi request reprint Do emergency medicine physicians perform ultrasound and conventional radiography in the emergency department? Recent trends from 1993 to 2001
    Andrea J Maitino
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 2:274-8. 2005
    ..To examine trends in emergency medicine physicians' participation in diagnostic ultrasound and conventional radiography from 1993 to 2001...
  47. ncbi request reprint Vertebroplasty in the United States: guidance method and provider distribution, 2001-2003
    William B Morrison
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, SA
    Radiology 243:166-70. 2007
    ..To use the nationwide Medicare database to retrospectively evaluate the provider distribution for vertebroplasty, as well as the guidance method used in the United States...
  48. ncbi request reprint Musculoskeletal biopsy: utilization and provider distribution in the United States Medicare population
    Eoin C Kavanagh
    Department of Radiology, UPMC, Pittsburgh, PA, USA
    Acad Radiol 14:371-5. 2007
    ..Physicians from many specialties perform musculoskeletal biopsy. Using the Medicare database, we sought to determine which specialties represent the physicians who are performing the majority...
  49. ncbi request reprint Cost and radiation savings of partial substitution of ultrasound for CT in appendicitis evaluation: a national projection
    Laurence Parker
    1 Department of Radiology, Thomas Jefferson University, 132 S 10th St, Ste 1089, Philadelphia, PA 19107
    AJR Am J Roentgenol 202:124-35. 2014
    ..For the ultrasound-CT protocol, patients with right lower quadrant abdominal pain undergo an ultrasound examination. If it is positive for appendicitis, they are sent directly to surgery, avoiding CT...
  50. ncbi request reprint Lateral epicondylitis of the elbow: US findings
    Dayna Levin
    Department of Radiology, Thomas Jefferson University Hospital, 111 S 11th St, Philadelphia, PA 19107, USA
    Radiology 237:230-4. 2005
    ..To determine the sensitivity and specificity of ultrasonography (US) in the detection of lateral epicondylitis and identify the US findings that are most strongly associated with symptoms...
  51. doi request reprint Hepatocellular carcinoma likelihood on MRI exams: evaluation of a standardized categorization system
    Nicholas Petruzzi
    Thomas Jefferson University Hospital, Department of Radiology, 132 South 10th Street, Main Building Suite 766 Philadelphia, PA 19107, USA
    Acad Radiol 20:694-8. 2013
    ..Evaluate the reliability and validity of a standardized reporting system designed to improve communication between the clinician and radiologist regarding likelihood of hepatocellular carcinoma (HCC)...
  52. doi request reprint Subscapularis tendon tears: a common sonographic finding in symptomatic postarthroplasty shoulders
    Elizabeth P Ives
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA, USA
    J Clin Ultrasound 41:129-33. 2013
    ..The purpose of this study is to document the prevalence of subscapularis tears on sonography of symptomatic postarthroplasty shoulders...
  53. doi request reprint Toxicities after radioembolization with yttrium-90 SIR-spheres: incidence and contributing risk factors at a single center
    Peachy Mae Piana
    Thomas Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19003, USA
    J Vasc Interv Radiol 22:1373-9. 2011
    ..To report the incidence of liver function test (LFT) toxicities after radioembolization with yttrium-90 ((90)Y) SIR-Spheres and review potential risk factors...
  54. doi request reprint Submucosal fibroids becoming endocavitary following uterine artery embolization: risk assessment by MRI
    Sachit K Verma
    Department of Radiology, Thomas Jefferson University Hospital, 396C Main Bldg, 111 S 10th St, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 190:1220-6. 2008
    ..The purpose of our study was to assess the relationship between the endometrium and submucosal fibroids before and after uterine artery embolization (UAE)...
  55. ncbi request reprint Is unenhanced CT sufficient for evaluation of acute abdominal pain?
    Sandip Basak
    Department of Radiology, Thomas Jefferson University Hospital, 111 South 11th Street, Philadelphia, PA 19107, USA
    Clin Imaging 26:405-7. 2002
    ..To determine whether intravenous contrast improves the ability of radiologists to establish the cause of acute abdominal pain after nondiagnostic or normal unenhanced CT...
  56. ncbi request reprint Nationwide trends in rates of utilization of noninvasive diagnostic imaging among the Medicare population between 1993 and 1999
    Andrea J Maitino
    Department of Radiology, Thomas Jefferson University Hospital, Suite 3390, Gibbon Bldg, 111 S 11th St, Philadelphia, PA 19107, USA
    Radiology 227:113-7. 2003
    ..To determine current utilization rates and recent nationwide trends for noninvasive diagnostic imaging (NDI) among the Medicare population...
  57. ncbi request reprint Spinal injection procedures: volume, provider distribution, and reimbursement in the U.S. medicare population from 1993 to 1999
    John A Carrino
    Department of Radiology, Thomas Jefferson University Hospital, 111 S 11th St, 3390 Gibbon, Philadelphia, PA 19107, USA
    Radiology 225:723-9. 2002
    ..To evaluate spinal injection procedures for trends in volume, reimbursement, and physician specialty participation...
  58. doi request reprint Dilated cisternae chyli: a sign of uncompensated cirrhosis at MR imaging
    Sachit K Verma
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
    Abdom Imaging 34:211-6. 2009
    ..In order to retrospectively determine the frequency of dilated cisterna chyli (CC) on MR images in patients with cirrhosis, and to assess its value as a simple diagnostic imaging sign of uncompensated cirrhosis...
  59. ncbi request reprint Financial impact of Medicare code bundling of CT of the abdomen and pelvis
    David C Levin
    1 Department of Radiology, Center for Research on Utilization of Imaging Services, Thomas Jefferson University Hospital, 132 S 10th St, Main 1090, Philadelphia, PA 19107
    AJR Am J Roentgenol 202:1069-71. 2014
    ..The purpose of this study was to assess the effect of this new policy on Medicare part B reimbursements for these studies...
  60. doi request reprint The recent downturn in utilization of CT: the start of a new trend?
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 9:795-8. 2012
    ..The aim of this study was to examine recent CT utilization trends to ascertain if growth is still occurring...
  61. doi request reprint Percutaneous needle vs surgical breast biopsy: previous allegations of overuse of surgery are in error
    David C Levin
    Center for Research on Utilization of Imaging Services, Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, PA 19107, USA
    J Am Coll Radiol 9:137-40. 2012
    ..The aim of this study was to more accurately assess the use of percutaneous core needle biopsy (PNB) compared with surgical biopsy...
  62. ncbi request reprint Suspected early or mild chronic pancreatitis: enhancement patterns on gadolinium chelate dynamic MRI. Magnetic resonance imaging
    Xiao Ming Zhang
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Magn Reson Imaging 17:86-94. 2003
    ..To assess whether measuring the pattern of pancreatic enhancement on gadolinium chelate dynamic magnetic resonance imaging (MRI) is helpful for diagnosis of suspected early or mild chronic pancreatitis...
  63. ncbi request reprint Trends in utilization: has extremity MR imaging replaced diagnostic arthroscopy?
    Nicole Glynn
    Department of Radiology, Thomas Jefferson University Hospital, Suite 3390 Gibbon Building, 111 South 11th Street, Philadelphia, PA 19107, USA
    Skeletal Radiol 33:272-6. 2004
    ..To examine the relative change in utilization of magnetic resonance (MR) imaging of the extremities versus diagnostic and therapeutic arthroscopy...
  64. ncbi request reprint Diagnosing breast lesions with contrast-enhanced 3-dimensional power Doppler imaging
    Flemming Forsberg
    Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA
    J Ultrasound Med 23:173-82. 2004
    ..To compare mammography with contrast-enhanced 2- and 3-dimensional power Doppler imaging for the diagnosis of breast cancer...
  65. ncbi request reprint Changes in procedure volume and service provider distribution among radiologists and nonradiologists in dual-energy x-ray absorptiometry between 1996 and 2002
    Charles M Intenzo
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
    J Am Coll Radiol 2:662-4. 2005
    ..To determine changes in the number of dual-energy x-ray absorptiometry (DEXA) procedures performed in the United States, as well as changes in the relative number of procedures performed by radiologists and nonradiologists...
  66. ncbi request reprint Paraumbilical collateral veins on MRI as possible protection against portal venous thrombosis in candidates for liver transplantation
    Sachit K Verma
    Department of Radiology, Thomas Jefferson University Hospital, 132 South 10th St 1094 Main Building, Philadelphia, PA 19107, USA
    Abdom Imaging 33:536-41. 2008
    ..Statistical analysis was performed by Fisher exact tests; 50 selected studies were reviewed independently by two additional readers to determine interobserver agreement via intraclass correlation coefficient (ICC)...
  67. doi request reprint Accuracy of MRI, MR arthrography, and ultrasound in the diagnosis of rotator cuff tears: a meta-analysis
    Joseph O de Jesus
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107 5244, USA
    AJR Am J Roentgenol 192:1701-7. 2009
    ..The purpose of this study was to compare the diagnostic accuracy of MRI, MR arthrography, and ultrasound for the diagnosis of rotator cuff tears through a meta-analysis of the studies in the literature...
  68. pmc Carotid stenosis assessed with a 4-dimensional semiautomated Doppler system
    Flemming Forsberg
    Department of Radiology, Division of Ultrasound, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA
    J Ultrasound Med 27:1337-44. 2008
    ..A secondary goal was to assess Encore volume flow measurements...
  69. ncbi request reprint Reactive endplate marrow changes: a systematic morphologic and epidemiologic evaluation
    Michael Karchevsky
    Department of Radiology, Hahnemann University Hospital, Broad and Vine Streets, Philadelphia, PA 19102, USA
    Skeletal Radiol 34:125-9. 2005
    ..To evaluate the morphology and location of vertebral endplate changes, and to analyze their association with age, gender, and body mass index (BMI)...
  70. ncbi request reprint Angiographic assessment of initial balloon angioplasty results
    Geoffrey A Gardiner
    Department of Radiology, Thomas Jefferson University Hospital and Jefferson Medical College, Philadelphia, Pennsylvania, USA
    J Vasc Interv Radiol 15:1081-7. 2004
    ....
  71. ncbi request reprint MR imaging of the lumbar spine: relation of posterior soft-tissue edema-like signal and body weight
    Hongyu Shi
    Department of Radiology, Thomas Jefferson University Hospital, 111 S 11th St, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 180:81-6. 2003
    ..Our purpose was to determine the association between posterior lumbar spine subcutaneous edema, fluid collections, and body weight on lumbar spine MR imaging...
  72. ncbi request reprint Indirect soft-tissue and osseous signs on knee MRI of surgically proven meniscal tears
    Diane Bergin
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19066, USA
    AJR Am J Roentgenol 191:86-92. 2008
    ..The purpose of this study was to determine the frequency of abnormal MR signal intensity in soft tissues and osseous structures in association with surgically proven meniscal tears...
  73. ncbi request reprint Cardiovascular imaging: who does it and how important is it to the practice of radiology?
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital, 111 S 11th St, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 178:303-6. 2002
    ....
  74. pmc Differences in sonographic conspicuity according to papillary thyroid cancer subtype: results of the Ukrainian-American cohort study after the Chornobyl accident
    Patrick O'Kane
    Department of Radiology, Thomas Jefferson University Hospital, 10th St and Walnut St, 796 Main Bldg, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 191:W293-8. 2008
    ..The study objective was to identify whether there is any relationship between the conspicuity of sonographically detected papillary cancers and histologic subtype...
  75. ncbi request reprint Body MR imaging and CT volume: variations and trends based on an analysis of medicare and fee-for-service health insurance databases
    Donald G Mitchell
    Department of Radiology, Thomas Jefferson University, 1096 Main Bldg, 132 S 10th St, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 179:27-31. 2002
    ..We examined Medicare and fee-for-service data sets to understand better the utilization of MR imaging for imaging the pelvis, abdomen, and chest relative to its use in imaging for other body parts and to the utilization of CT...
  76. ncbi request reprint Abnormalities on MRI of the subscapularis tendon in the presence of a full-thickness supraspinatus tendon tear
    Diane Bergin
    Department of Radiology, Thomas Jefferson University Hospital, 396C Main Building, 111 S 10th St, Philadelphia, PA 19107
    AJR Am J Roentgenol 186:454-9. 2006
    ..Our objective was to determine the association between size and chronicity of full-thickness supraspinatus tendon tears with subscapularis tendon abnormalities on MRI...
  77. ncbi request reprint Trends in the utilization of MR angiography and body MR imaging in the US Medicare population: 1993-1998
    Barry J Livstone
    Department of Radiology, Thomas Jefferson University Hospital, 111 S 11th St, Philadelphia, PA 19107, USA
    Radiology 222:615-8. 2002
    ....
  78. ncbi request reprint The endometrium on routine contrast-enhanced CT in asymptomatic postmenopausal women: avoiding errors in interpretation
    Philip S Lim
    Department of Radiology, Jefferson Medical College, Thomas Jefferson University, 7th Floor Main Building, 132 South Tenth Street, Philadelphia, PA 19107 5244, USA
    Clin Imaging 26:325-9. 2002
    ..05). We believe that our findings will help prevent overdiagnosis of endometrial fluid or thickening in asymptomatic women...
  79. ncbi request reprint Advantages of real-time spatial compound sonography of the musculoskeletal system versus conventional sonography
    Dennis C Lin
    Division of Ultrasound, Department of Radiology, Thomas Jefferson University Hospital, 132 S 10th St, Philadelphia, PA 19107 5244, USA
    AJR Am J Roentgenol 179:1629-31. 2002
    ..The purpose of our study was to compare real-time spatial compound sonography with conventional high-resolution musculoskeletal sonography...
  80. ncbi request reprint Pancreatic cysts: depiction on single-shot fast spin-echo MR images
    Xiao Ming Zhang
    Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
    Radiology 223:547-53. 2002
    ..To evaluate single-shot fast spin-echo (SE) magnetic resonance (MR) imaging for depiction of pancreatic cysts in a large number of patients and to analyze cyst prevalence with respect to patient age and sex and other clinical information...
  81. ncbi request reprint Recent rapid increase in utilization of radionuclide myocardial perfusion imaging and related procedures: 1996-1998 practice patterns
    David C Levin
    Department of Radiology, Thomas Jefferson University Hospital, 111 S 11th St, Philadelphia, PA 19107, USA
    Radiology 222:144-8. 2002
    ....
  82. ncbi request reprint Chronic hepatitis C activity: correlation with lymphadenopathy on MR imaging
    Xiao Ming Zhang
    Department of Radiology, Thomas Jefferson University, 1096 Main Bldg, 132 S 10th St, Philadelphia, PA 19107, USA
    AJR Am J Roentgenol 179:417-22. 2002
    ..To study the MR appearance of lymph nodes in relation to activity of chronic active hepatitis C, we correlated the findings on MR imaging with a histologic grading of the activity level...
  83. ncbi request reprint Is epidural fat associated with body habitus?
    Hung Ta H Wu
    Department of Radiology, Taipei Veterans General Hospital, National Yang Ming University, Taipei, Taiwan
    J Comput Assist Tomogr 29:99-102. 2005
    ..To evaluate, in the spine, the relationship between the amount of epidural fat to body weight, height, body mass index (BMI), presence of obesity, depth of posterior subcutaneous fat, as well as gender and age...
  84. doi request reprint Lumbar interspinous bursitis (Baastrup disease) in a symptomatic population: prevalence on magnetic resonance imaging
    Robbert Maes
    Gemini Hospital, Huisduinerweg, Den Helder, Netherlands
    Spine (Phila Pa 1976) 33:E211-5. 2008
    ..Cross-sectional retrospective review of 539 patients with lumbar spine magnetic resonance imaging (MRI)...
  85. ncbi request reprint MR imaging of anterior cruciate ligament tears: is there a gender gap?
    Laura M Fayad
    The Russell H Morgan Department of Radiology and Radiological Science, John Hopkins Medical Institutions, 601 North Wolfe Street, Baltimore, MD 21287 0750, USA
    Skeletal Radiol 32:639-46. 2003
    ..Clinically, females receive anterior cruciate ligament (ACL) tears more commonly than males. We explored whether gender differences exist in MR imaging patterns of ACL tears...
  86. ncbi request reprint Functional magnetic resonance cholangiography (fMRC) of the gallbladder and biliary tree with contrast-enhanced magnetic resonance cholangiography
    Laura M Fayad
    The Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland 21287, USA
    J Magn Reson Imaging 18:449-60. 2003
    ..To determine the diagnostic performance of functional magnetic resonance cholangiography (fMRC) for the evaluation of anatomic and functional biliary disorders...