Ultra-Low-Dose Noise-Free Technology to Reduce Radiation Exposure During Coronary Angiography - American Heart Association Journals

{ "title": "Study Evaluates Diagnostic Accuracy of Photon-Counting Detector CT in Coronary Angiography", "excerpt": "Research finds photon-counting detector CT offers high sensitivity, specificity, and accuracy for detecting coronary artery stenosis. ", "body": "A recent study published in the American Journal of Roentgenology examined the diagnostic performance of standard resolution (SR) and ultra-high resolution (UHR) modes in coronary computed tomography angiography (CCTA) using photon-counting detector CT (PCD CT). Researchers analyzed data from 122 inpatients, totaling 1,613 segments for evaluation. The findings indicate a segment-level sensitivity and accuracy rate consistently above 89.6 percent for diagnosing coronary artery stenosis.\n\nThe study assessed images from 61 patients using SR (total of 788 segments) and 61 patients utilizing UHR (total of 825 segments). The image reconstructions included SRnormal and SR virtual non-calcium (SRVNCa) images for the SR exams, while UHR exams were categorized into UHRnormal and UHRthin images.

The latest chemistry news, including important research advances, business and policy trends, chemical safety practices, career guidance, and more. Many commercial products, including plasticizers and detergents, rely on aldehyde building blocks. Hydroformylation constructs aldehydes from alkenes and synthesis gas—a mixture of carbon monoxide and hydrogen. The industrial process currently uses rhodium-based catalysts that are expensive, involve toxic phosphine-containing ligands, and occur in the same phase as the reactants, which complicates catalyst recovery.

Not the very latest-gen chip, but the focus is on gaming performance PC Guide is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Read More

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