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  • Title: Accuracy of nonstenotic coronary atherosclerosis assessment by multi-detector computed tomography.
    Author: Hara T, Yamada S, Hayashi T, Ikeda Y, Yamashiro K, Mizutani K, Iwata S, Okajima K, Tsukishiro Y, Matsumoto K, Akagami T, Kumagai H, Kinugasa M, Inoue M, Murai N, Izawa I, Kajiya T.
    Journal: Circ J; 2007 Jun; 71(6):911-4. PubMed ID: 17526989.
    Abstract:
    BACKGROUND: The ability to evaluate coronary stenosis using multi-detector computed tomography (MDCT) has been well discussed. In contrast, several studies demonstrated that the plaque burden measured by intravascular ultrasound (IVUS) has a relationship to the risk of cardiovascular events. the accuracy of MDCT was studied to determine plaque and vessel size compared with IVUS. METHODS AND RESULTS: Fifty-six proximal lesions (American College of Cardiology/American Heart Association classification: segment 1, 5, 6) from 33 patients were assessed using MDCT and IVUS. The plaque and vessel area were measured from the cross-sectional image using both MDCT and IVUS. Eight coronary artery lesions with motion artifacts and heavily calcified plaques were excluded from the analysis. The vessel and lumen size evaluated using MDCT were closely correlated with those evaluated by IVUS (R(2)=0.614, 0.750 respectively). Furthermore, there was a strong correlation between percentage plaque area assessed by MDCT and IVUS (R(2)=0.824). CONCLUSION: MDCT can noninvasively quantify coronary atherosclerotic plaque with good correlation compared with IVUS in patients with atherosclerosis.
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