Feasibility of Simple Evaluation of Coronary Artery Calcium Using a Number of Chest Computed Tomography Slices: A Multicenter Study.

Autor:	Yamamoto H; Laboratory of Physiology and Morphology, School of Pharmacy, Yasuda Women's University, Hiroshima, Hiroshima, Japan.; Department of Cardiology, Suisei-kai Kajikawa Hospital, Hiroshima, Hiroshima, Japan., Fujimoto S; Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan., Aoshima C; Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan., Minamino T; Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan., Fujii T; Department of Cardiology, JA Hiroshima General Hospital, Hatsukaichi, Hiroshima, Japan., Wakabayashi S; Department of Neurosurgery, Suisei-kai Kajikawa Hospital, Hiroshima, Hiroshima, Japan., Urabe Y; Department of Cardiology, Hiroshima Prefectural Hospital, Hiroshima, Hiroshima, Japan., Ueda H; Department of Cardiology, Hiroshima Prefectural Hospital, Hiroshima, Hiroshima, Japan., Kunita E; Department of Cardiology, Hiroshima City Asa Hospital, Hiroshima, Hiroshima, Japan., Abe M; Department of Cardiology, Matsuyama Heart Center, Yotsuba Circulation Clinic, Matsuyama, Ehime, Japan., Higashino H; Department of Radiology, Matsuyama Heart Center, Yotsuba Circulation Clinic, Matsuyama, Ehime, Japan.
Jazyk:	angličtina
Zdroj:	Annals of vascular diseases [Ann Vasc Dis] 2023 Mar 25; Vol. 16 (1), pp. 46-53.
DOI:	10.3400/avd.oa.22-00060
Abstrakt:	Objective: We aimed to evaluate the visual measurements of coronary artery calcium (CAC) on nonelectrocardiogram (ECG)-gated chest computed tomography (CT) using a simple scoring method that involves counting the number of CT slices containing CAC. Materials and Methods: We analyzed 163 participants who underwent both coronary and chest CT examinations at six centers within 3 months. Agatston scores were calculated on standard ECG-gated scans and classified as none (0), mild (1-99), moderate (100-400), or severe (>400). Next, chest CT images were reconstructed to standard 5.0 mm axial slices. Then, CAC on chest CT scans was measured using two methods: the Weston score (sum of the assigned score of each vessel, range: 0-12) and number of slices showing CAC (Ca-slice#). Results: When the Weston score and Ca-slice# were divided into four levels according to the optimal divisional levels corresponding to the Agatston score classes, good agreements with the 4-grade Agatston score were observed (kappa value=0.610 and 0.794, respectively). The sensitivity and specificity of Ca-slice# ≥9 to identify severe Agatston scores of >400 were 86% and 96%, respectively. Conclusion: The Ca-slice#, a simple scoring method using chest CT scans, was in good agreement with the ECG-gated Agatston score. Competing Interests: Disclosure StatementShinichiro Fujimoto received grants from HeartFlow Japan G. K., Canon Medical Systems Corporation, and FUJIFILM Corporation, Edwards LifeSciences Ltd. All other authors declare no competing interests. (© 2023 The Editorial Committee of Annals of Vascular Diseases.)
Databáze:	MEDLINE
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