双源CT大螺距螺旋扫描模式血管成像对主动脉病变的诊断价值  

Diagnostic Value of Dual-source CT Angiography of High-pitch in Aortic Diseases

作　　者：陈华[1] 张波[1] 窦小峰 田为中[1] 

机构地区：[1]江苏省泰州市人民医院医学影像科,225300

出　　处：《现代医用影像学》2013年第6期475-477,共3页Modern Medical Imageology

摘　　要：目的:探讨双源CT大螺距血管成像技术对主动脉病变的诊断及临床应用价值。材料与方法:对临床可疑主动脉病变18例患者采用大螺距CTA检查,并对原始数据采用多平面重建(MPR)、曲面重建(CPR)、最大密度投影(MIP)和容积再现(VR)后处理技术进行重建。结果:18例患者中共检出主动脉夹层7例,主动脉瘤3例,大动脉炎2例,主动脉壁间血肿2例,主动脉硬化性溃疡1例,正常主动脉3例。所有图像质量优良,患者剂量长度乘积平均约210mGy·cm,有效射线剂量平均约3.15mSv。结论:双源CT大螺距血管成像技术对主动脉病变的诊断具有重要意义,并能有效地降低辐射剂量。Purpose： To explore the value of the Dual-source CT angiography （DSCTA） of high-pitch in diagnosis of aortic disease. Materials and Methods： 18 patients were suspected aortic disease with CTA of high-pich, raw data were dealed with muhiplanar reformation（MPR）, curved plannar reformation（CPR）, maximum intensity projection（MIP） and vol- ume rendering（VR）. Results： The aortic disease in 18 cases included aortic dissection in 7 cases, ortic aneurysm in 3 cases, Takayasu arteritis in 2 cases, aortic intramural hematoma in 2 cases, atherosclerotic aortic ulcer in 1 cases, normal aortic in 3 cases. All the image quality is excellent, and the average effective radiation dose was 3. 15mSv. Conclusion： Dual-source CT angiography of high-pitch is significance in diagnosing aortic diseases, and can significantly reduce radiation dose.

关 键 词：主动脉造影术 大螺距体层摄影术 X线计算机 

分 类 号：R816.2[医药卫生—放射医学]