三维主动脉增强磁共振造影技术(附32例报告)  

Three-dimensional dynamic contrast-enhanced MR angiography:clinical application on 32 patients

作　　者：杨振贤[1] 谢道海[1] 郭亮[1] 陈剑华[1] 郭茂风[1] 傅引弟[1] 

机构地区：[1]苏州大学附属第一医院放射科,江苏苏州215006

出　　处：《医学影像学杂志》2009年第9期1133-1135,共3页Journal of Medical Imaging

摘　　要：目的:探讨三维增强磁共振血管造影(three dimensional contrast enhancement magnetic resonance angiography,3DCEMRA)技术及其临床应用价值。方法:32例动脉瘤病例中男性23例,女性9例。最大年龄为82岁,最小年龄为32岁,平均年龄64岁。所有病例均进行3DCEMRA检查。增强对比剂为钆-喷替酸萄甲胺(Gd-DTPA)。增强扫描前先行横断位FSE序列T1WI和/或T2WI。CEMRA扫描后行横断位FSET1WI。观察指标包括动脉瘤的起始位置、真假性、范围(长度和最宽直径)、有无血栓、动脉瘤周围结构有无异常等。结果:①动脉瘤的位置:32例动脉瘤中,8例为胸主动脉瘤,22例腹主动脉瘤,1例髂血管动脉瘤,1例肠系膜上动脉瘤;②动脉瘤的真假性:25例呈真性,7例呈假性;③动脉瘤的范围:长度范围为25～162mm,平均长度为80.4mm;宽度范围为32～101mm,平均宽度为54.8mm;④伴有血栓情况:12例动脉瘤内可见附壁血栓形成;⑤动脉瘤累及分支情况:1例累及右侧颈总动脉,7例压迫左肾动脉,9例向髂动脉延伸或累及;⑥动脉瘤周围情况:2例动脉瘤可见周围组织炎症表现。结论:3DCEMRA是一种对评价胸腹部大血管动脉瘤的有效微创伤技术。Objective：To evaluate the technique and assess the value of clinical applications of 3D dynamic contrast-enhanced MR angiography in the diagnosis of lesions of the aorta.Methods：Review of records or patients with aneurysm obtained over 5-year period revealed 33 aneurysms in 32 cases.This study included 23 men and 9 women（mean age,64 years）.All patients were performed MRI examination with 3D CE MRA after intravenous injection of Gd-DTPA.Axial FSE T1WI and T2WI scans were obtained before contrast,and FSE axial T1WI post contrast. Features evaluated included aneurysm location, true and pseudo-, size, mural thrombosis, branch involvement and surrounding findings. Results： （1） Aneurysms were located in the thoracic aorta （n = 8, 25%）, abdominal aorta （n = 22, 69 % ）, superior mesenteric artery （ n = 1, 3 % ）, and iliac artery （n = 1, 3 % ） （2） Among aneurysms in 32 patients, twenty are true aneurysms, seven pseudoaneurysms;（3） Average length is 80.4 mm （25 - 162 mm）, and average width is 54.8 mm （32- 101 mm）;（4） Mural thrombosis. Twelve aneurysms were accompanied by mural thrombosis; （5） Branch involvement. One aneurysm involved right carotid artery; Seven aneurysms compressed left renal artery; Nine aneurysms extended into iliae artery;（6） Aneurysm surroundings. There were some inflammation findings in the surroundings of two aneurysms. Conclusion： 3D CE MRA is a reliable and robust technique for aorta imaging.

关 键 词：主动脉瘤 三维增强磁共振血管造影 

分 类 号：R541[医药卫生—心血管疾病] R445.2[医药卫生—内科学]