Moshage W E, Achenbach S, Seese B, Bachmann K, Kirchgeorg M
Department of Cardiology, University of Erlangen-Nürnberg, Germany.
Radiology. 1995 Sep;196(3):707-14. doi: 10.1148/radiology.196.3.7644633.
To compare electron-beam computed tomography (CT) and coronary angiography for depiction of coronary artery stenoses.
In 27 patients (age range, 50-70 years), electrocardiographically triggered axial electron-beam CT scans of the heart were obtained during breath hold and intravenous administration of contrast agent. Coronary arteries were reconstructed three-dimensionally. Electron-beam CT and angiographic results were compared.
Significant enhancement within the vessel lumen (P < .001) permitted selective reconstruction of the inner coronary artery lumen. Nine of 11 high-grade stenoses and all five occlusions in the proximal left anterior descending artery and three of five high-grade right coronary artery stenoses were clearly identified. Recognition of stenosis of the left circumflex artery was not reliable. Success after percutaneous transfemoral coronary angioplasty was documented in five of five patients by visualizing the increase in vessel diameter at repeat investigation.
Contrast-enhanced electron-beam CT yields promising results concerning the visualization of coronary artery stenoses.
比较电子束计算机断层扫描（CT）与冠状动脉造影对冠状动脉狭窄的显示情况。
对27例年龄在50至70岁之间的患者，在屏气及静脉注射造影剂期间进行心电图触发的心脏轴向电子束CT扫描。对冠状动脉进行三维重建。比较电子束CT和血管造影的结果。
血管腔内显著强化（P <.001）使得能够选择性重建冠状动脉内腔。左前降支近端的11处高度狭窄中的9处以及所有5处闭塞，以及右冠状动脉5处高度狭窄中的3处均能清晰识别。左旋支动脉狭窄的识别不可靠。通过重复检查时观察血管直径的增加，证实5例患者经皮股动脉冠状动脉成形术后均成功。
对比增强电子束CT在冠状动脉狭窄的可视化方面产生了有前景的结果。
