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作者查阅了7年(1978～1985)的血管造影记录,发现经股动脉插管脑血管造影证实大脑后动脉(PCA)狭窄的有15例,其中仅6例有相应的症状,作者分析了这6例症状性PCAs病人的临床、血管造影特征及CT。血管造影发现:5例为单侧PCAs,1例为双侧狭窄;狭窄处多在PCA的近端;狭窄部位1处者4例,多处者2例;狭窄处长度2～5mm;狭窄的程度50～80%。全部病例顺行血流均可通过狭窄处,无血液动力学影响。血管腔内未发现血栓或远端血管的栓塞。CT扫描显示了距状裂梗塞有PCA症状者2例,无PCA症状者1例,小脑梗塞1例,丘脑腔隙梗塞1例,双侧内囊腔隙梗塞1例。临床特征,6例中5男,1女,年龄63～79岁。
The authors reviewed angiographic records for seven years (1978-1985) and found that 15 cases of posterior cerebral artery stenosis (PCA) confirmed by femoral arterial cannulation cerebral angiography, of which only 6 had corresponding symptoms, the authors analyzed this Clinical and angiographic features of 6 patients with symptomatic PCAs and CT. Angiography showed that: 5 cases of unilateral PCAs, 1 case of bilateral stenosis; stenosis more in the proximal PCA; stenosis 1 in 4 cases, 2 cases of multiple; stenosis at 2 ~ 5mm; stenosis Degree of 50 to 80%. All cases of antegrade blood flow through the stenosis, no hemodynamic effects. No embolism of the thrombus or distal blood vessel was found in the lumen of the blood vessel. CT scans showed 2 cases of PCA symptom from the infarct, 1 case of no PCA symptoms, 1 case of cerebellar infarction, 1 case of thalamic lacunar infarction and 1 case of bilateral internal capsule lacunar infarction. Clinical features, 6 males and 5 males, 1 female, aged 63 to 79 years.