CAJ | 학술논문

目的：通过磁共振三维时间飞跃法(3D-TOF),探讨颅内动脉成窗变异磁共振血管造影(MRA)的发生率、好发部位及其临床意义。方法收集行颅颈部磁共振3D-TOF检查的患者资料1445例,将原始图像经工作站处理,得到最大密度投影(MIP)和容积重组(VR)图像,分析颅内动脉成窗变异的影像学特点。结果1445例病例中,发现颅内动脉成窗变异38例(检出率2.63%,38/1445),其中位于基底动脉16例(检出率1.11%,16/1445)；大脑前动脉12例(检出率0.83%,12/1445)；椎动脉6例(检出率0.42%,6/1445)；大脑后动脉3例(检出率0.21%,3/1445)；大脑中动脉1例(检出率0.07%,1/14451)。38例成窗变异病例中有1例合并动脉瘤。结论磁共振3D-TOF能清楚显示和诊断颅内动脉成窗变异这一少见血管异常。
목적：통과자공진삼유시간비약법(3D-TOF),탐토로내동맥성창변이자공진혈관조영(MRA)적발생솔、호발부위급기림상의의。방법수집행로경부자공진3D-TOF검사적환자자료1445례,장원시도상경공작참처리,득도최대밀도투영(MIP)화용적중조(VR)도상,분석로내동맥성창변이적영상학특점。결과1445례병례중,발현로내동맥성창변이38례(검출솔2.63%,38/1445),기중위우기저동맥16례(검출솔1.11%,16/1445)；대뇌전동맥12례(검출솔0.83%,12/1445)；추동맥6례(검출솔0.42%,6/1445)；대뇌후동맥3례(검출솔0.21%,3/1445)；대뇌중동맥1례(검출솔0.07%,1/14451)。38례성창변이병례중유1례합병동맥류。결론자공진3D-TOF능청초현시화진단로내동맥성창변이저일소견혈관이상。
Objective To explore the incidence, predilection site, and clinical significance of intracranial artery window-type variation magnetic resonance angiography (MRA), through magnetic resonance three dimensional time of flight (3D-TOF). Methods The data of 1445 patients, who underwent magnetic resonance 3D-TOF, were collected. The images of maximum intensity projection (MIP) and volume reformation (VR) were showed after processing of workstation in the original images. Imaging characteristics of intracranial artery window-type fenestration were analyzed. Results Among the 1445 cases, there were 38 cases with intracranial artery window-type variation (detection rate as 2.63%, 38/1445), and 16 of them in the basilar artery (detection rate as 1.11%, 16/1445), 12 cases in the anterior cerebral artery (detection rate as 0.83%, 12/1445), 6 cases in the vertebral artery (detection rate as 0.42%, 6/1445), 3 cases in the posterior cerebral artery (detection rate as 0.21%, 3/1445), and 1 case in the middle cerebral artery (detection rate as 0.07%, 1/1445). There was 1 of the 38 variation cases which combined with arterial aneurysm. Conclusion Intracranial artery window-type variation, as a rare vascular anomaly, can be clearly showed and diagnosed by magnetic resonance 3D-TOF.