Coronary artery calcification: Effect of size of field of view on multi-detector row CT measurements

被引:15
作者
Hong, C [1 ]
Pilgram, TK [1 ]
Zhu, F [1 ]
Bae, KT [1 ]
机构
[1] Washington Univ, Sch Med, Edward Mallinckrodt Inst Radiol, St Louis, MO 63110 USA
关键词
coronary vessels; calcification; CT; computed tomography (CT); image processing; image quality;
D O I
10.1148/radiol.2331031463
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 [临床医学]; 100207 [影像医学与核医学]; 1009 [特种医学];
摘要
The effect of the size of the field of view (FOV) on coronary artery calcium measurements at multi-detector row computed tomography (CT) was assessed. Coronary multi-detector row CT was performed with an identical protocol in 100 consecutive subjects. CT images were' reconstructed at different FOV sizes (210, 260, and 310 mm). Calcified coronary lesions were detected in all three image sets in 52 subjects. The FOV sizes tested for multi-detector row CT coronary screening had a negligible effect on coronary artery calcium measurements (P greater than or equal to 06). However, risk stratification decreased by one level in seven of 52 subjects when the FOV increased from 210 or 260 to 310 mm. (C) RSNA, 2004.
引用
收藏
页码:281 / 285
页数:5
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