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New CTA technique helps catch renal artery stenosis
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.
Study Reaffirms Low Risk for csPCa with Biopsy Omission After Negative Prostate MRI
December 19th 2024In a new study involving nearly 600 biopsy-naïve men, researchers found that only 4 percent of those with negative prostate MRI had clinically significant prostate cancer after three years of active monitoring.
Study Examines Impact of Deep Learning on Fast MRI Protocols for Knee Pain
December 17th 2024Ten-minute and five-minute knee MRI exams with compressed sequences facilitated by deep learning offered nearly equivalent sensitivity and specificity as an 18-minute conventional MRI knee exam, according to research presented recently at the RSNA conference.
Can Radiomics Bolster Low-Dose CT Prognostic Assessment for High-Risk Lung Adenocarcinoma?
December 16th 2024A CT-based radiomic model offered over 10 percent higher specificity and positive predictive value for high-risk lung adenocarcinoma in comparison to a radiographic model, according to external validation testing in a recent study.
