【摘要】 目的:评价多层螺旋CT在显示冠状动脉桥血管中的临床应用价值。方法:21例冠状动脉血管旁路移植术后患者行多层螺旋CT血管成像及常规造影检查,分析CT诊断桥血管通畅性和狭窄的可靠性。结果:多层螺旋CT血管成像成功检测出21例患者共45支桥血管,15支桥血管闭塞,30支桥血管通畅,10支共16处狭窄,5支桥血管明显狭窄(>50%)8处,5支桥血管显示轻度狭窄(<50%)病变8处,MSCT评价桥血管闭塞和明显狭窄和导管造影完全符合。结论:多层螺旋CT尤其是64层CT能够准确地评价冠状动脉桥血管及吻合口的通畅性和狭窄情况,可以作为临床上对冠状动脉桥血管可疑病变的一种常规的无创性检查手段。更多还原

【Abstract】 Objective To explore the clinical value of multislice spiral computed tomography(MSCT) for assessment of coronary artery bypass graft(CABG).Methods Both MSCT and conventional angiography were performed on 21 patients undergoing coronary artery bypass surgery.The reliability of MSCT for detecting the bypass graft patency or stenosis was analyzed.Results MSCT successfully detected occlusion in 15 of 45 grafts and patency in the remaining 30.Stenosis occurred in 10 grafts, locating at 16 different sites;5 of which were severely narrow at 8 locations and another 5 were mildly narrow.The findings of significant stenosis or occlusion by MSCT were coincident with those by conventional angiography.Conclusions MSCT, especially 64-slice CT, can accurately evaluate the patency or stenosis of coronary bypass grafts and anastomoses.This technique can be used as a routine, noninvasive procedure for detecting suspected abnormalities in bypass grafts.更多还原