摘要
目的探讨M SCT影响冠状动脉成像的多种因素。方法应用16层螺旋CT对64例疑有或拟诊断为冠心病的患者行冠状动脉检查,采用回顾性心电门控技术对采集的数据进行多种图像后处理。结果4例成像不佳,不能用于影像评价,其余60例检测出CT>110Hu硬斑块,利用仿真内窥镜在18例34支血管中检测出CT值50～110Hu的软斑块;扫描时间为注入造影剂后21～25s,右心室内造影剂伪影较轻;3.0m m层厚最适合Cascoring评估。结论M SCT冠状动脉成像影响因素比较复杂,各种后处理方法对冠状动脉成像各有优势,利用多种后处理技术综合评价,更有助于斑块的检出及斑块的定位和定性,其中仿真内窥镜为冠状动脉粥样硬化斑块的检查提供新的视角。
Objective To study the factors of multi-slice spiral CT in diagnosis of coronary artery disease. Methods 64 patients with suspected or diagnosis coronary artery disease were scan with MSCT, then with the retrospectively ECG-gating technology, all data was transmitted to word station, on which the following technique were applied： MIP（maximum intensity projection）, MPR （multiplanar reconstruction）.CPR （curved planar reconstruction）, CTVE （CT virtual endoscopy）, VRT （Volume planar reconstruction）. Results In all cases, 4 cases were poor quality which were the available for diagnosis. 24 cases are normal. 330 plaques of CT〉110Hu were found in vasculars, 34 soft plaques of CT50～110 Hu were found in 18 vasculars with CTVE. Conclusions The reconstructions of MSCT have their own advantages and values to detect Coronary artery disease. The combined use of these post processing techniques could be more helpful to precise localizing and qualitative diagnosis. CTVE is another effective and noninvasive technique, which provides a new clinical methord to examine coronary artery disease.
出处
《海南医学》
CAS
2006年第11期22-24,共3页
Hainan Medical Journal
