Clinical Study on Diagnostic Coronary Angiography to Delineate Coronary Arteries by 320 Row Dynamic Volume CT Undergone by Patients Scheduled for Valve Surgery
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摘要: 目的: 评价风湿性心脏瓣膜病置换前320排容积CT心脏冠状动脉增强扫描的和临床应用价值。方法: 35例风湿性心脏病瓣膜病患者术前320排容积CT冠状动脉增强扫描,分析其伴发冠心病的原因及其冠状动脉发生狭窄的部位及程度,初步评价320排容积CT扫描冠状动脉血管增强的临床应用价值及优势。结果: 385支冠状动脉中显示,364支未见异常,有11支冠状动脉狭窄大于50%为阳性,另10支冠状动脉狭窄小于15%~30%,提示临床有轻度粥样硬化改变。结论: 风湿性心脏瓣膜病瓣膜置换前,50岁以上患者无论有无冠心病的危险因素,均应常规行320排容积CT冠状动脉增强扫查,以减少置换术的并发症,确保瓣膜置换术后复跳的成功。Abstract: Objective: To evaluate the clinical value of the diagnostic coronary angiography to delineate coronary arteries by 320 Row Dynamic Volume CT undergone by patients scheduled for valve surgery.Methods: Consecutive 35 patients with rheumatic heart disease who were scheduled for valve surgery underwent diagnostic coronary angiography to delineate coronary arteries by 320 Row Dynamic Volume CT.To analyze the prevalence of coronary artery disease(CAD) due to rheumatic heart disease as well as the part and seriousness of the luminal stenosis of the coronary branches.To evaluate the clinical value of the diagnostic coronary angiography to delineate coronary arteries by 320 Row Dynamic Volume CT.Results: Among the 364 single coronary branches,364 of them remained normal,11 of them showed 50% or more luminal stonisis due to which the patients would be detected as with CAD,while 10 showed 15-30% or less luminal stonisis which suggests coronary atherosclerotic.Conclusion: Coronary angiography by 320 Row Dynamic Volume CT should be performed in all patients clinically suspected with CAD,aged>50 and the patients with angina and/or coronary risk factors in order to decrease the occurrence of operative complication.
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