冠状动脉钙化：视野大小对多排螺旋CT测量的影响
Coronary artery calcification: effect of size of field of view on multi-detector row CT measurements.
作者信息
Hong Cheng, Pilgram Thomas K, Zhu Fang, Bae Kyongtae T
机构信息
Mallinckrodt Institute of Radiology, Washington University School of Medicine, Campus Box 8131, 510 S Kingshighway Blvd, St Louis, MO 63110, USA.
出版信息
Radiology. 2004 Oct;233(1):281-5. doi: 10.1148/radiol.2331031463. Epub 2004 Aug 27.
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 >/=.06). However, risk stratification decreased by one level in seven of 52 subjects when the FOV increased from 210 or 260 to 310 mm.
评估了视野（FOV）大小对多排探测器计算机断层扫描（CT）冠状动脉钙化测量的影响。对100名连续受试者采用相同方案进行冠状动脉多排探测器CT检查。CT图像以不同的FOV大小（210、260和310 mm）进行重建。52名受试者的所有三个图像组中均检测到钙化冠状动脉病变。用于多排探测器CT冠状动脉筛查的FOV大小对冠状动脉钙化测量的影响可忽略不计（P≥0.06）。然而，当FOV从210或260 mm增加到310 mm时，52名受试者中有7名的风险分层下降了一级。
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