多排螺旋CT血管成像技术显示胸腹主动脉瘤病人脊髓Adamkiewicz动脉

目的:采用多排螺旋CT血管成像技术(MDCTA)显示胸腹主动脉瘤病人的脊髓Adamkiewicz动脉.方法:31例胸腹主动脉瘤病人行MDCTA检查,通过MPR、MIP和CPR等图像后处理方法显示脊髓Adamkiewicz动脉的起止关系、分支情况以及走行特点.结果:脊髓前动脉显示率为100%.28例(28/31例,90.3%)能显示Adamkiewicz动脉,其中19例(19/31例,61.3%)能够显示从主动脉经肋间动脉到Adamkiewicz动脉的连续性解剖走行关系,有7例(25%)能辨认出二支Adamkiewicz动脉.该动脉中有27支(27/35,77.1%)起源于左侧,33支(33/35,94.3%)位于T7～T12之间.结论:MDCTA能清晰显示胸腹主动脉瘤病人脊髓Adamkiewicz动脉的解剖细节,可作为无创性血管成像的首选检查方法.

Multi- detector- row CT angiography in visualization of the artery of Adamkiewicz

Objective:To visualize the artery of Adamkicwicz in patients with thoracoabdominal aortic aneurysm using multi-detector row spiral CT angiography (MDCTA).Methods:Thirty-one patients with thoracoabdominal aortic aneurysm underwent MDCTA.Various reconstruction techniques including multiplanar reformation (MPR),maximum intensity projection (MIP) and curved planar reformation (CPR) were used to visualize the origin,the branching patterns and the entire course of the artery of Adamkiewicz.Results:The anterior spinal artery was clearly visualized in all patients.The artery of Adamkiewicz was visualized in 28 of 31 aneurysmal patients(90.3%).The anatomic continuity of the entire course of the artery of Adamkiewicz,starting from the aorta to the intercostals artery and entering in the anterior spinal artery,was clearly depicted in 19 of 31 patients(61.3%).Two arteries of Adamkiewicz were identified in 7 of the 28 patients (25%).There were twenty-seven arteries of Adamkiewicz (27/35,77.1%) originated from the left side and thirty-three (33/35,94.3%) originated between the level from T 7 to T 12 .Conclusion:MDCTA can clearly depict the detailed anatomy of the artery of Adamkiewicz in patients with thoracoabdominal aortic aneurysm.As a noninvasive imaging technique,optimized MDCTA should therefore be the method of choice for the depiction of the artery of Adamkiewicz.