CAJ | 학술논문

目的：探讨64层螺旋CT血管成像（CTA）在诊断胚胎型大脑后动脉（FTP）及其邻近血管变异中的价值。方法采用最大密度投影（MIP），容积再现技术（VR）和曲面重建（CPR）对所采集的头颈血管源图像进行影像重建并回顾性分析37例CTA诊断的FTP影像学资料，研究CTA在FTP的诊断和FTP邻近血管的改变。结果37例FTP中，合并大脑前动脉（ACA）A1段变异9例，合并椎-基底动脉变异12例，所有37例FTP病例同侧基底动脉起源的大脑后动脉（B-PCA）均有不同程度发育不良或缺如。结论 FTP患者常合并邻近血管的变异，几乎所有FTP患者同侧B-PCA发育不良或缺如。
목적：탐토64층라선CT혈관성상（CTA）재진단배태형대뇌후동맥（FTP）급기린근혈관변이중적개치。방법채용최대밀도투영（MIP），용적재현기술（VR）화곡면중건（CPR）대소채집적두경혈관원도상진행영상중건병회고성분석37례CTA진단적FTP영상학자료，연구CTA재FTP적진단화FTP린근혈관적개변。결과37례FTP중，합병대뇌전동맥（ACA）A1단변이9례，합병추-기저동맥변이12례，소유37례FTP병례동측기저동맥기원적대뇌후동맥（B-PCA）균유불동정도발육불량혹결여。결론 FTP환자상합병린근혈관적변이，궤호소유FTP환자동측B-PCA발육불량혹결여。
Objective To investigate the value of 64-slice spiral CT angiography(CTA)in the diagnosis of fetal origin of posterior cerebral artery (FTP)and the variations of the artery nearby.Methods All images were reconstructed with maximum intensity projection (MIP),volume rendering(VR),multiplanar reconstruction(MPR)and curve planar reconstruction(CPR).Thirty-seven patients with an FTP diagnosed by CTA were analyzed retrospectively to assess the value of CTA in the diagnosis of FTP and the variation of arteries nearby.Re-sults Nine cases variation of the A1 segment of anterior cerebral artery(ACA)and 1 2 cases of variation of the vertebral-basilar artery were found in the 37 patients with FTP.Dysplasia or deficiency of the posterior cerebral artery(PCA)originated from the basilar artery(BA)were demonstrated in all the 37 patients with FTP.Conclusions Patients with FTP are frequently complicated with a variation of the artery nearby and almost all the FTP complicated with the dysplasia or deficiency of the PCA originated from the BA.