This study investigates patient-level claims data in the Medicare population focusing on where same-day sinus and brain CT imaging is performed and how the frequency of same-day studies changed with time before and during OP-14 measure program implementation. Full Article
Kroll, H., Duszak Jr, R., Hemingway, J., Hughes, D.R. and Wintermark, M. 2016. "Same Day Sinus and Brain CT Imaging in the Medicare Population: Are Practice Patterns Changing in Association with Medicare Policy Initiatives?," American Journal of Neuroradiology, 37(6): 1000 - 1004.
This study compares national trends in utilization and coverage of diagnostic (non-screening) computed tomography colonography (CTC) in the Medicare population before and after achieving Current Procedural Terminology® (CPT) Category I code status in 2010. Full Article
Cox, K., Duszak Jr., R., Hemingway, J., Hughes, D.R., and Nandwana, S.B. 2016. "Reassessing Medicare Trends in Diagnostic CT Colonography After Achieving CPT Code Category I Status," Abdominal Radiology, 41(7): 1357 - 1362.
This study assesses national trends in the utilization of vascular ultrasound (VUS) and changing relative
specialty roles in examination interpretation. Full Article
Prabhakar, A.M., Misono, A.S., Hemingway, J., Hughes, D.R., and D.R., and Duszak Jr, R. 2015. "Medicare Utilization of Vascular Ultrasound From 1998 to 2013: Continued Growth in Both Radiologist and Nonradiologist Imaging," Journal of the American College of Radiology, 13(3): 255 - 264.
The purpose of this study was to assess state-level trends in per beneficiary Medicare spending on medical imaging. Full Article
Rosenkrantz, A.B., Hughes, D.R., and Duszak Jr, R.. 2015. "State Variation in Medical Imaging: Despite Great Variation, the Medicare Spending Decline Continues," American Journal of Roentgenology, 205(4): 817 - 821.
This study evaluates changes in diagnostic radiology resident and fellow workloads in recent years. Full Article
Chokshi, F.H., Hughes, D.R., Wang, J.M., Mullins, M.E., Hawkins, C.M., and Duszak Jr, R.. 2015. "Diagnostic Radiology Resident and Fellow Workloads: A 12-Year Longitudinal Trend Analysis Using National Medicare Aggregate Claims Data," Journal of the American College of Radiology, 12(7): 664 - 669.
This study evaluates national trends in percutaneous hepatic and renal biopsy procedures with regard to utilization, specialty group roles, and sites of service. Full Article
Angel W., Hawkins C.M., Wang J.M., Hughes D.R., Duszak R.. 2015. "Percutaneous Hepatic and Renal Biopsy Procedures: An 18-Year Analysis of Changing Utilization, Specialty Roles, and Sites of Service," Journal of Vascular and Interventional Radiology, 26(5): 680 - 685.
This study evaluates regional variation in Medicare Physician Fee Schedule (MPFS) payments for medical imaging to radiologists compared with nonradiologists. Full Article
Rosman DA, Nsiah E, Hughes DR, Duszak R Jr.. 2015. "Regional Variation in Medicare Payments for Medical Imaging: Radiologists Versus Nonradiologists," American Journal of Roentgenology, 204(5): 1042 - 1048.
This study evaluates national trends in nonvascular invasive radiology procedures performed by advanced practice providers (APPs), focusing specifically on nurse practitioners and physician assistants. Full Article
Duszak, R., Walls, D. G., Wang, J. M., Hemingway, J., Hughes, D. R., Small, W. C., & Bowen, M. A.. 2015. "Expanding Roles of Nurse Practitioners and Physician Assistants as Providers of Nonvascular Invasive Radiology Procedures," Journal of the American College of Radiology, 12(3): 284 - 289.
The purpose of this study is to evaluate national trends in lumbar puncture procedures and the relative roles of specialty groups providing this service. Full Article
Kroll, H., Duszak, R., Nsiah, E., Hughes, D. R., Sumer, S., & Wintermark, M.. 2015. "Trends in Lumbar Puncture Over 2 Decades: A Dramatic Shift to Radiology," American Journal of Roentgenology, 204(1): 15 - 19.