In a series of 704 @entity439 @entity1 who were admitted to the Research Institute for Brain and Blood Vessels-AKITA for the last 9.5 years (from October, 1974 to March, 1983), angiographic features of the anterior cerebral arteries and related @entity455 were analyzed with reference to the site of @entity439 . The age distribution was from 20 to 78 years (mean age 53 years), and the @entity1 to @entity1 ratio was 1:1.1. The total number of @entity439 was 866. The site distribution of @entity439 consisted of 230 (27%) anterior communicating, 269 (31%) middle cerebral, 282 (38%) internal carotid, 54 (6%) anterior cerebral, 45 (5%) vertebrobasilar and 6 other arteries. More than one @entity439 were found out in 137 cases. The total number of performed cerebral angiograms was 1840, in these right carotid arterial angiograms were 652, left carotid 644 and vertebral 544. Cases were divided into two groups, namely one who had the anterior communicating artery (Acom) @entity439 and the other who had not. Angiographic calibers of A1 portion (proximal portion of the anterior cerebral artery) were compared statistically between these two groups. As a result, three points as below were clarified in this series. 1) The Acom @entity439 group showed the significant asymmetry of A1 (p less than 0.005) compared to the other cases. 2) The left A1 portions were significantly dominant (p less than 0.05) to the right in the Acom @entity439 group. 3) @entity509 and aplasias of A1 were found in the Acom @entity439 group more frequently than in the other with statistical significance (p less than 0.005).(ABSTRACT TRUNCATED AT 250 WORDS)

[Angiographic analysis of the anterior cerebral arteries with cerebral aneurysms--with special interest in the morphological aspect including so-called XXXX ].

@entity1 :: ('9606', 'Species') :: ['women', 'patients', 'men'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysms', 'aneurysm'] @entity455 :: ('MESH:D014652', 'Disease') :: ['vascular anomalies'] @entity509 :: ('MESH:C538429', 'Disease') :: ['Angiographic hypoplasias']
@entity455 :: (MESH:D014652,Disease) :: ['vascular anomalies']
