中国中西医结合影像学杂志2012，Vol.10Issue(4)：301-304,310,封2,6.DOI:10.3969/j.issn.1672-0512.2012.04.005
第二代双源CT前门控冠状动脉成像与冠状动脉造影比较的初步研究
Comparison of coronary artery imaging with prospectively ECG-triggered acquisition on the second generation of Dual-source CT and coronary angiography
佟海滨 1宋庆桥 1方继良 1赵青 1范洋洋 1马云瑶 1张民 1薛超 1汪平 1石凤祥 1张振鹏1
作者信息
- 1. 中国中医科学院广安门医院,北京100053
- 折叠
摘要
Abstract
Objective: To explore the clinical value of prospective acquisitions in coronary CT angiography (CCTA) using the 2nd generation of dual-source CT by comparing with selective coronary angiography. Methods: Forty-four patients with suspected coronary heart disease underwent prospective ECG-triggering CCTA(thirty-five patients on prospective sequential acquisitions and nine on prospective high pitch spiral mode) and selective coronary angiography (SCA). These two examinations were performed within one month to evaluate the stenosis of coronary artery. CCTA was diagnosed by two experienced radiologists by consensus, and SCA by two cardiologists respectively. The diagnostic sensitivity, specificity,positive and negative predictive value,accuracy of CCTA were determined with SCA as standard of reference. Radiation dose values were measured. Results: Based on coronary stenosis segmentary analysis, the sensitivity, specificity, positive and negative predictive value, accuracy of CCTA were 90. 18%, 93. 05%,76. 52%, 97. 42% and 92. 47%. For significant coronary stenosis, the sensitivity, specificity, positive and negative predictive value,accuracy were 90. 14%,95. 69%,75. 29%,98. 52%and 94. 98% . There was no significant difference in evaluating the stenosis and significant stenosis of coronary artery between CCTA and SCA( P >0. 05). The mean effective radiation dose was(3. 36+1. 59) mSv per patient with CCTA. Conclusion:The prospective ECG-triggering coronary CT angiography on the 2nd generation of dual-source CT can provide a high diagnostic accuracy of coronary artery stenoses with a low radiation dose.关键词
体层摄影术,X线计算机/冠状血管造影术/辐射剂量Key words
tomography, X-ray computed/ coronary angiography/ radiation dosage分类
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佟海滨,宋庆桥,方继良,赵青,范洋洋,马云瑶,张民,薛超,汪平,石凤祥,张振鹏..第二代双源CT前门控冠状动脉成像与冠状动脉造影比较的初步研究[J].中国中西医结合影像学杂志,2012,10(4):301-304,310,封2,6.
