Fully Automatic Coronary Calcium Score Software Empowered by Artificial Intelligence Technology: Validation Study Using Three CT Cohorts

June-Goo Lee, HeeSoo Kim, Heejun Kang, Hyun Jung Koo, Joon-Won Kang, Young-Hak Kim, Dong Hyun Yang
Korean Journal of Radiology, 2021
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The CAC_auto system, which is a deep learning-based fully automatic calcium scoring system, was validated in this study using previously published cardiac CT cohort data, with the manually segmented coronary calcium scoring (CAC_hand) system as the reference standard. The AVIEW CAC software was used for the automatic CAC measurement. The results showed that the CAC_auto system provided accurate calcium score measurement and risk category classification, with high sensitivity and low false-positive rates in detecting coronary calcium, as well as high reliability in measuring the Agatston score per vessel and per patient. The main causes of false-positive results were image noise, aortic wall calcification, and pericardial calcification. The study suggests that the CAC_auto system could potentially streamline CAC imaging workflows.


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