16排螺旋CT血管造影在下肢动脉疾病中的应用  

Application of 16 Detector Spiral CT Angiography for Lower Extremity Arteries Deseases

作　　者：左敏静[1] 李晓[1] 蔡柄忠[1] 黄水平[1] 

机构地区：[1]南昌大学第二附属医院CT室,南昌330006

出　　处：《江西医学院学报》2007年第5期52-55,共4页Acta Academiae Medicinae Jiangxi

摘　　要：目的探讨16排螺旋CT血管造影(16DSCTA)在下肢动脉疾病中的临床应用价值。方法对24例可疑下肢动脉疾病患者进行16DSCTA扫描,并将原始数据传至ADW4.2工作站行容积再现(VR)、最大密度投影(MIP)、多平面重建(MPR)及曲面重建(CPR)。结果动脉粥样硬化闭塞症9例;血栓闭塞性脉管炎3例;股动脉假性动脉瘤4例5个;小腿血管瘤2例;右髂内动静脉瘘1例;肾下段腹主动脉瘤3例;2例为正常下肢动脉。MPR较好的显示病变血管与周围组织结构的关系。VR及MIP在显示血管全貌方面优于MPR。CPR利于显示弯曲走行的血管。结论16DSCTA无创、快速及强大的后处理功能,为诊断下肢动脉疾病理想的成像方法,为临床治疗方案的选择提供重要的参考。Objective To investigate the clinical application of 16-detector spiral CT angiography（16DSCTA） for lower extremity arteries disease. Methods A total of 24 consecutive patients with suspected lower extremity arteries disease underwent 16DSCTA. All primary data were transferred to a workstation （Advantage windows 4.2,GE Medical Systems） with software that reconstructed volume renderings（VR）, maximum intensity projections（MIP）, multi-planar reconstructions （MPR）and curved planar reconstructions （CPR）. Results Of the 24 patients, there were 9 showed atherosclerotic occlusion; 3 did arteritis occlusion with thrombus, 4 did femoral arteries pseudoaneurysm including 5, 2 did calf hemangioma, 1 did right internal iliac arteriovenous fistula, 3 did infrarenal aortic aneurysm and 2 did normal lower extremity arteries. MIP displayed excellently the relationship between pathological vessel and around organization. VR and MIP were better in showing the vessel panorama than MPR. CPR wad good at manifesting curved vessel. Conclusion 16DSCTA is ideal imaging modality for lower extremity arteries disease because of non-invasive,speediness and strong post-processing, which offers significant clinical reference for choosing therapeutic schemes.

关 键 词：CT血管造影 下肢 动脉 

分 类 号：R814.42[医药卫生—影像医学与核医学]