Are the distributions of variations of circle of Willis different in different populations? - Results of an anatomical study and review of literature.
Are the distributions of variations of circle of Willis different in different populations? - Results of an anatomical study and review of literature.
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威利斯圈子的变化分布在不同人群中不同吗？ - 解剖学研究和文献综述的结果。
DOI：
10.1186/1471-2377-6-22
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发表时间：
2006-06-24
期刊：
影响因子：
2.6
通讯作者：
Ketabchi E
中科院分区：
文献类型：
--
作者：
Eftekhar B;Dadmehr M;Ansari S;Ghodsi M;Nazparvar B;Ketabchi E
先前的研究提出脑动脉环（也称为威利斯环）的变异与某些脑血管疾病之间存在相关性。还调查了不同人群中这些疾病的发病率差异。对脑动脉环解剖结构差异的研究可以部分解释不同民族或种族群体中某些脑血管疾病发病率的差异。虽然许多研究调查了脑动脉环各段解剖结构的变化，但很少有人研究整个脑动脉环的变异。同样，尚未比较不同民族或种族群体中此类变异的发生频率。 102 名最近去世的伊朗男性的大脑被解剖，以观察脑动脉环解剖结构的变化。解剖过程被记录在胶片上并数字化。每次解剖时都会有一张调整大小的图片，显示完整的圆圈，已在网上提供。将圆的整体变化和分段变化与之前的研究进行了比较。总体而言，整个脑动脉环和节段变异的不同变异频率与之前的研究相当。更具体地说，与之前的研究类似，我们的研究中最常见的是单侧和双侧后交通动脉发育不全的变异。未见左大脑前动脉前交通部（A1）发育不全、A1或大脑后动脉前交通部（P1）发育不全。 3% 的患者左右后交通动脉均缺失。本研究中发现的伊朗男性脑动脉环的解剖学变异与文献中报道的更多样化人群的解剖学变异没有显着差异。在考虑到潜在的混杂因素的同时，作者得出的结论是，根据现有的研究，没有证据表明不同人群的脑动脉环变化的分布存在差异。
Previous studies have proposed correlation between variants of the cerebral arterial circle (also known as circle of Willis) and some cerebrovascular diseases. Differences in the incidence of these diseases in different populations have also been investigated. The study of variations in the anatomy of the cerebral arterial circle may partially explain differences in the incidence of some of the cerebrovascular diseases in different ethnic or racial groups. While many studies have investigated the variations in the anatomy of each segment of the cerebral arterial circle, few have addressed the variants of the cerebral arterial circle as a whole. Similarly, the frequency of occurrence of such variants in different ethnic or racial groups has not been compared. 102 brains of recently deceased Iranian males were dissected, in order to observe variations in the anatomy of the cerebral arterial circle. The dissection process was recorded on film and digitized. One resized picture from each dissection, showing complete circle has been made available online. The variations of the circle as whole and segmental variations were compared with previous studies. On the whole, the frequencies of the different variants of the entire cerebral arterial circle and segmental variations were comparable with previous studies. More specifically variants with uni- and bilateral hypoplasia of posterior communicating arteries were the most common in our study, similar to the previous works. No hypoplasia of the precommunicating part of the left anterior cerebral artery (A1), aplasia of A1 or the precommunicating part of the posterior cerebral artery (P1) was seen. In 3% both right and left posterior communcating arteries were absent. The anatomical variations found in the cerebral arterial circle of the Iranian males in the current study were not significantly different to those of more diverse populations reported in the literature. While taking into account potential confounding factors, the authors conclude that based on available studies, there is no evidence suggesting that the distributions of the variations of cerebral arterial circle differ in different populations.
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影响因子：
9.9
作者：
BAPTISTA, AG
通讯作者：
BAPTISTA, AG
影响因子：
8.3
作者：
KAYEMBE, KNT;SASAHARA, M;HAZAMA, F
通讯作者：
HAZAMA, F
影响因子：
--
作者：
MILENKOVIC, Z;VUCETIC, R;PUZIC, M
通讯作者：
PUZIC, M
影响因子：
14.5
作者：
TAY, CH;OON, CL;GWEE, AL
通讯作者：
GWEE, AL
DOI：
10.1001/archneurpsyc.1959.02340160007002
发表时间：
1959-01-01
影响因子：
--
作者：
ALPERS, BJ;BERRY, RG;PADDISON, RM
通讯作者：
PADDISON, RM