New CTA technique helps catch renal artery stenosis

Article

Korean researchers report that gauging the concentration of contrast enhancement in urine during CT angiography can reliably pinpoint renal artery stenosis.

Korean researchers report that gauging the concentration of contrast enhancement in urine during CT angiography can reliably pinpoint renal artery stenosis.

Dr. Chang Kyu Sung, a radiologist at Seoul National University, prospectively reviewed 33 patients with suspected renovascular hypertension and 43 patients with other conditions but otherwise normal blood pressure. All patients underwent contrast-enhanced CTA followed by intra-arterial digital subtraction angiography during a three-year period (AJR 2006;187[2]:532-540).

Researchers found the urine-CT attenuation ratio accurately indicated the affected kidney, helped detect hemodynamically significant renal artery stenosis, and supported other CTA findings. The urine-CT attenuation ratio could be used for the noninvasive assessment of renal function and as an adjunct to helical CTA, the researchers said.

Newsletter

Stay at the forefront of radiology with the Diagnostic Imaging newsletter, delivering the latest news, clinical insights, and imaging advancements for today’s radiologists.

Recent Videos
SNMMI: Emerging PET Insights on Neuroinflammation with Progressive Apraxia of Speech (PAOS) and Parkinson-Plus Syndrome
Improving Access to Nuclear Imaging: An Interview with SNMMI President Jean-Luc C. Urbain, MD, PhD
SNMMI: 18F-Piflufolastat PSMA PET/CT Offers High PPV for Local PCa Recurrence Regardless of PSA Level
SNMMI: NIH Researcher Discusses Potential of 18F-Fluciclovine for Multiple Myeloma Detection
SNMMI: What Tau PET Findings May Reveal About Modifiable Factors for Alzheimer’s Disease
Emerging Insights on the Use of FES PET for Women with Lobular Breast Cancer
Can Generative AI Reinvent Radiology Reporting?: An Interview with Samir Abboud, MD
Mammography Study Reveals Over Sixfold Higher Risk of Advanced Cancer Presentation with Symptom-Detected Cancers
Combining Advances in Computed Tomography Angiography with AI to Enhance Preventive Care
Study: MRI-Based AI Enhances Detection of Seminal Vesicle Invasion in Prostate Cancer
Related Content
© 2025 MJH Life Sciences

All rights reserved.