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Rcadia COR Analyzer(R) System Demonstrates Potential in Emergency Department Triage of Chest Pain Patients at Low to Moderate Risk of Coronary Artery Disease
Date:11/30/2009

the automated results with those of expert readers."

"The results of this initial study, particularly the system's high negative predictive value of 98 percent, suggest that this automated system can be a very useful tool," he continued. "The system may provide non-expert readers with confidence to rule out significant stenosis, leading to decreased length of stay for patients in the ED and improved throughput in the ED." He added that positive results from the automated analysis require further interpretation by an expert reader.

In the retrospective study, images from cCTAs performed on 115 low to intermediate risk patients who entered the ED with suspected CAD were studied with the COR Analyzer System. The researchers compared analyses of the cCTA studies by the COR Analyzer System with the interpretation of the studies by consensus opinion of two expert readers who served as the gold standard. For 100 analyzable studies, the automated results from COR Analyzer yielded a negative predictive value (NPV) of 98 percent, meaning that 98 percent of the patients determined by the COR Analyzer System to not have significant stenosis (>50 percent reduction in lumen area), were in agreement with the expert readers. The COR Analyzer System identified five of six patients determined by the expert readers to have significant stenosis, for a sensitivity of 83 percent. The specificity was 82 percent.

The presentation is entitled, "Segmental Accuracy of an Automated Analyzer of Coronary CT Angiography (CCTA) in ED Patients: Initial Experience." In addition to Dr. Tyagi, the study's authors are: Atif Khan, M.D., Faisal Khosa, M.D., Sheryar Sarwar, M.D., Maya Tyagi, Marc Camacho, M.D., and Melvin E Clouse, M.D., all of Beth Israel Deaconess Hospital, Boston.

About the COR Analyzer System

The COR Analyzer® System automatically processes images acquired on cCTA and generates comprehensive results and correspond
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SOURCE Rcadia Medical Imaging, Ltd.
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