多层螺旋CT血管成像的临床应用  

Clinical application of multi-slice spiral CT angiography

作　　者：王毅[1] 黄坚[1] 李鹰[1] 张小容[1] 

机构地区：[1]广西壮族自治区人民医院CT室,广西南宁530022

出　　处：《医学影像学杂志》2006年第2期142-145,共4页Journal of Medical Imaging

摘　　要：目的：探索多层螺旋CT血管成像3D-MSCTA的技术及临床应用。方法：本文收集MSCTA血管成像44例，其中脑动脉血管MSCTA成像11例，肺动脉血管MSCTA成像21例，主动脉血管MSCTA成像6例，肝动脉血管MSCTA成像5例，髂动脉血管MSCTA成像1例。使用非离子型对比剂碘海醇100ml，对比剂注射速率为3～3．5ml／s。扫描延迟时间按照经验值，脑动脉15～20s，肺动脉10～15s，主动脉、肝动脉、及髂动脉等20～25s。扫描后原始图像数据送工作站做容积重建（VR）、最大密度投影（NIP）、多平面重组（MPR）、部份病例做曲面重组（CPR）等后处理。结果：11例脑血管MSCTA正常6例，肺动脉MSCTA（CTPA）21例，正常15例，5例肝动脉MSCTA，正常2例；脑血管动脉瘤4例，脑动静脉畸形（AVM）1例；肺动脉栓塞6例；胸主动脉夹层3例：升主动脉瘤1例；腹主动脉瘤2例；肝动脉瘤1例，肝癌1例，肝血管瘤1例；1例右髂总动脉瘤。结论：多层螺旋CT3D血管成像（3D-MSCTA）可清晰显示各部位的三维血管形态，可以多方位、多角度地旋转图像，全面立体直观地显示病灶的整体形态，对指导临床手术有很大的帮助。Objective：To study the technique of multi-slice spiral CT angiography and its clinical application. Methods：44 cases of multi-slice spiral CT angiography were analyzed. Among them 11 were of cerebral vascular, 21 of pulmonary vascular, 6 of aortic vascular, 5 of hepatic vascular and 1 of common iliac vascular. 100ml nonionic contrast medium （liohexol） was used. The rate of injection was 3 - 3.5ml/s. The applied empirical value of scan delay time was 15 - 20s for cerebral artery, 10 - 15s for pulmonary artery and 20 - 25s for aorta, hepatic artery and common iliac artery. The original scanned data were delivered to working-station for VR, MIP, MPR and CPR.Results：6 of the 11 cerebral vascular MSCTA, 15 of the 21 pulmonary vascular MSCTA and 2 of the 5 hepatic Vascular MSCTA were normal. The others were 4 intracranial aneurysm, 1 AVM, 6 pulmonary embolism, 1 hepatic aneurysm, 1 liver cancer, 1 hepatic hemangioma and 1 right common iliac artery aneurysm. In the 6 cases of aortic vascular MSCTA, 3 were thoracic aortic dissection, 1 ascending aorta aneurysm and 2 abdominal aortic aneurysm.Conclusion：Multi-slice spiral CT angiography （MSCTA） clearly shows all 3D vascular structures in the body. Revolving the photo in multi-orientation and multi-angle to completely display the three dimensional and visual focal shape. Therefore, MSCTA can he of great helpful to clinical operation.

关 键 词：血管造影 体层摄影术 X线计算机 

分 类 号：R543.5[医药卫生—心血管疾病] R543.6[医药卫生—内科学]