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New CT rule-out examination cuts patient x-ray exposure
High radiation exposure has been the bogeyman keeping the cardiac CT triple rule-out exam for chest pain from widespread application.
High radiation exposure has been the bogeyman keeping the cardiac CT triple rule-out exam for chest pain from widespread application. The use of radiation dose reduction techniques addresses that concern.
Dr. Kevin Takakuwa and colleagues at Thomas Jefferson University reviewed data from 267 consecutive patients who underwent triple rule-out cardiac CT angiography after presenting to the emergency roon with symptoms of acute coronary syndrome. Ninety-five patients underwent the triple rule-out CTA protocol with tube current modulation, and 172 did so without it. Investigators found that patients undergoing triple rule-out without tube current modulation received average effective radiation doses of 18 mSv. Those getting the exam with tube current modulation, however, had effective radiation doses reduced by more than 50% without image quality loss. Findings were published in the American Journal of Roentgenology (2009;192[4]:866-872).
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.
