Kanwal M Farooqi1, Shannon N Nees2, Jennifer Smerling2, Sri H Senapathi3, Raymond Lorenzoni4, Martina Pavlicova3, Andrew J Einstein5, Emile A Bacha6, David Kalfa6, Paul J Chai7. 1. Division of Cardiology, Department of Pediatrics, Columbia University Irving Medical Center, New York, New York. Electronic address: zkf2549@cumc.columbia.edu. 2. Division of Cardiology, Department of Pediatrics, Columbia University Irving Medical Center, New York, New York. 3. Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York. 4. Division of Cardiology, Department of Pediatrics, Children's Hospital at Montefiore, Bronx, New York. 5. Seymour, Paul, and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and New York-Presbyterian Hospital, New York, New York; Department of Radiology, Columbia University Irving Medical Center and New York-Presbyterian Hospital, New York, New York. 6. Division of Pediatric Cardiothoracic Surgery, Department of Surgery, Columbia University Irving Medical Center, New York, New York. 7. Division of Pediatric Cardiothoracic Surgery, Department of Surgery, Children's Healthcare of Atlanta, Atlanta, Georgia.
Abstract
BACKGROUND: Anomalous aortic origin of a coronary artery (AAOCA) is associated with sudden cardiac death. High-risk characteristics are most commonly assessed using a 2-dimensional (2D) echocardiogram (echo) or cardiac computed tomography (CT). We hypothesize that these characteristics will be more accurately assessed when they are presented in the form of a 3D digital model. METHODS: Fourteen participants, including cardiothoracic surgeons and cardiac imaging specialists, assessed image representations, including echo, CT images, and a 3D digital model, from 6 patients who had undergone AAOCA repair. Accuracy of assessment was evaluated by comparing responses with operative findings (the gold standard). RESULTS: The reported type of AAOCA was most accurately assessed on CT (100%) and 3D models (92.31%) compared with echo (80.77%). The accuracy of the AAOCA course was highest on CT (91.03%), followed by the 3D model (80.77%), and lowest on echo (61.54%). The accuracy of intramurality was low across all imaging modalities (17.95% echo, 29.49% CT, and 21.79% 3D model). Accurate assessment of a separate AAOCA ostium was highest on 3D models (97.40%). Ostial stenosis was more accurately assessed on 3D models (56.41%). When accuracy was separated by subspecialty, CT and 3D models were more accurately assessed by all participants regardless of training. CONCLUSIONS: Cardiac imagers and congenital cardiothoracic surgeons most accurately assessed AAOCA presence, type, and course on cardiac CT and 3D models. 3D models were superior in representation of ostial characteristics. CT and 3D models are overall more accurately assessed by specialists regardless of training.
BACKGROUND: Anomalous aortic origin of a coronary artery (AAOCA) is associated with sudden cardiac death. High-risk characteristics are most commonly assessed using a 2-dimensional (2D) echocardiogram (echo) or cardiac computed tomography (CT). We hypothesize that these characteristics will be more accurately assessed when they are presented in the form of a 3D digital model. METHODS: Fourteen participants, including cardiothoracic surgeons and cardiac imaging specialists, assessed image representations, including echo, CT images, and a 3D digital model, from 6 patients who had undergone AAOCA repair. Accuracy of assessment was evaluated by comparing responses with operative findings (the gold standard). RESULTS: The reported type of AAOCA was most accurately assessed on CT (100%) and 3D models (92.31%) compared with echo (80.77%). The accuracy of the AAOCA course was highest on CT (91.03%), followed by the 3D model (80.77%), and lowest on echo (61.54%). The accuracy of intramurality was low across all imaging modalities (17.95% echo, 29.49% CT, and 21.79% 3D model). Accurate assessment of a separate AAOCA ostium was highest on 3D models (97.40%). Ostial stenosis was more accurately assessed on 3D models (56.41%). When accuracy was separated by subspecialty, CT and 3D models were more accurately assessed by all participants regardless of training. CONCLUSIONS: Cardiac imagers and congenital cardiothoracic surgeons most accurately assessed AAOCA presence, type, and course on cardiac CT and 3D models. 3D models were superior in representation of ostial characteristics. CT and 3D models are overall more accurately assessed by specialists regardless of training.
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