Challenging Cases and How to Manage Them
Includes a Live Web Event on 04/25/2026 at 12:15 PM (EDT)
Challenging Cases and How to Manage Them
Saturday, April 25, 2026, 12:15pm - 1:15pm Eastern Time (NY/USA)
Description and Objectives
This session is designed to advance DXA technologists' expertise in scan acquisition, evaluation, and quality assurance in complex imaging scenarios. Using anonymized cases from the ISCD atlas, participants will learn to identify examinations compromised by challenging anatomy or patient-related factors that render scans diagnostically non-evaluable. The program will provide detailed instruction on recognizing technical acquisition and analysis errors that require repeat imaging, including manufacturer-specific and cross-platform artifacts, and will outline appropriate corrective actions to optimize scan quality. Additionally, the session will review protocol modifications and positioning strategies for patients with implants, scoliosis, and degenerative changes, as well as technical considerations for special populations, including pediatric and obese patients, to ensure accurate, reproducible bone density measurements.
After attending this lecture, participants will be able to:
- Identify DXA scans with challenging anatomy or patient-related factors that render them no longer diagnostically evaluable, using anonymized cases from the ISCD atlas.
- Recognize technical scan failures that require repeat imaging and describe appropriate corrective actions, including identification of common artifacts across manufacturers, using anonymized cases from the ISCD atlas.
- Discuss protocol modifications for patients with implants, scoliosis, degenerative changes, and special populations including pediatric and obese patients.
Handouts
All speakers are requested to provide handouts/lecture slides for registered attendees. Those that are provided for this session will be uploaded to the handouts tab and can be accessed/downloaded from that tab.
Orhan K. Oz, MD, PhD, CCD
Professor of Radiology, Chief of Nuclear Medicine
UT Southwestern Medical Center
Orhan K. Öz, M.D., Ph.D., is Professor of Radiology and Chief of Nuclear Medicine at UT Southwestern Medical Center, and holder of the Robert W. Parkey, MD Distinguished Professorship. He also holds a secondary appointment in the Charles and Jane Pak Center for Mineral Metabolism and Clinical Research, in which he holds the Wechun Pak Professorship in Bone Biophysics. Additionally, Dr. Öz serves as Medical Director of Nuclear Medicine at Parkland Memorial Hospital, and directs the UT Southwestern Nuclear Medicine Residency program. His clinical interests include nuclear medicine, radiology, and cancer and cancer screening, with a particular interest in melanoma.
Dr. Öz holds a bachelor’s degree in biology, chemistry, and mathematics from Morehouse College in Atlanta, and a master’s degree in applied mathematics from Clark Atlanta University. After receiving his medical degree and doctoral degree in biophysics from Stanford University, he completed his residency training in radiology at UT Southwestern, where he remained to receive advanced training through a fellowship program in radiology and molecular biology. He then received fellowship training in radiologic pathology at the Armed Forces Institute of Pathology, and in proton emission tomography (PET) at the University of California – Los Angeles.
Although the majority of his time is dedicated to clinical practice, Dr. Öz is highly involved in research. His interests include imaging pancreatic beta cells, tumor imaging, and investigating the mechanisms underlying estrogen regulation of bone mass and metabolism. His research has resulted in numerous publications throughout his career, including the publication of a single-photon emission computed tomography (SPECT) and computed tomography (CT) based scoring system to stage the severity of foot infections in people with diabetes.
ASRT Credit
This session is approved by ASRT for 1.00 Category A credits.