心脏瓣膜置换术后瓣周漏的电子束CT诊断  

Paravalvar leak of aortic valve replacement and/or mitral valve replacement: diagnosis of electron beam computed tomography

作　　者：支爱华[1] 戴汝平[1] 蒋世良[1] 曹程[1] 祁晓鸥[1] 白桦[1] 陈瑶[1] 段秀芳[2] 

机构地区：[1]中国医学科学院阜外心血管病医院放射科,北京100037 [2]中国医学科学院阜外心血管病医院群体遗传学及防治教研室,北京100037

出　　处：《中华放射学杂志》2005年第5期475-479,共5页Chinese Journal of Radiology

摘　　要：目的评价心脏瓣膜置换术后瓣周漏的电子束CT(EBCT)表现.方法对121例心脏瓣膜置换术后的患者施行EBCT扫描(连续容积或单层序列横断面扫描),男93例,女28例,年龄16～74岁.其中102例患者行主动脉瓣置换术,12例患者行二尖瓣置换术,7例患者行主动脉瓣和二尖瓣双瓣置换术.结果心脏瓣膜置换术后EBCT扫描显示,主动脉瓣周点-线状对比剂外溢7例,瓣缘连续线状对比剂外溢3例,大量对比剂外溢4例.二尖瓣周点-线状对比剂外溢1例(该患者同时伴有主动脉瓣周大量对比剂外溢).EBCT扫描瓣膜置换术后瓣周漏阳性率为11.57%(14/121).结论 EBCT可作为瓣膜置换术后瓣周漏患者随访及再次手术治疗前的常规检查.Objective To evaluate the periprothetic leak in aortic valve replacement and/or mitral valve replacement on electron beam CT. Methods A retrospective study was performed in 121 patients who underwent electron beam CT between 2002 and 2004. 102 patients underwent aortic valve replacement, 12 patients underwent mitral valve replacement, and 7 patients underwent double valve replacement. Paravalvar leak was estimated by electron beam CT. Results In 121 patients after the aortic valve replacement and/or mitral valve replacement, 7 patients were diagnosed as trifle aortic paravalvar leak, 3 patients as moderate aortic paravalvar leak, and 4 patients as mass aortic paravalvar leak on electron beam CT. 1 patients were diagnosed as trifle mitral paravalvar leak on electron beam CT. Conclusion Electron beam CT is a very useful method in detecting paravalvar leak after valve replacement and for follow-up.

关 键 词：心脏瓣膜置换术后 电子束CT诊断 瓣周漏 二尖瓣双瓣置换术 主动脉瓣置换术 CT扫描 二尖瓣置换术 横断面扫描 对比剂 常规检查 再次手术 EBCT 患者 外溢 线状 阳性率 治疗前 

分 类 号：R816.2[医药卫生—放射医学]