Yusuf Özgür ÇAKMAK, Ömer ÖZDOĞMUŞ, Esra GÜRDAL, İBRAHİM ÜZÜN, Safiye ÇAVDAR

Origins and diameter of the anterior choroidal artery

Amaç: Arteria choroidea anterior arteria carotis interna'nın en kalın dalıdır. Bu damarın arteria communicans posterior'dan da ayrılabileceği belirtilmiştir. Kafaiçi anevrizmalar ya da tümörler ve arterivenöz malformasyonlar bu damarı tutabilirler. Arteria choroidea anterior'un diagnostik açıdan değerlendirilmesinde, bu damarın anatomik yapısıyla ilgili bilgilere ihtiyaç vardır. Bu sebeple çalışmamızda hem orijin tanımlanmış hemde çap ölçülmüştür. Yöntem: Yaşları 20 ile 71 arasında değişen (ortalama yaş 43,5), 40 otopsiden (11 kadın, 29 erkek) toplam 80 adet serebral hemisferi ölümü takiben mümkün olduğunca kısa bir sürede aldık. Alınan damarlardan kriostat ile 40 µm kalınlığında transvers kesitler alındı. Her kesit üzerinde en uzun, en kısa ve diagonal çap ölçülüp bunların ortalaması alındı. Cinsiyet ve taraf farklılıkları istatistiksel olarak analiz edildi. Bulgular: 75 serebral hemisferde (%93,5) arteria choroidea anterior tespit edilmişken 5 hemisferde (%6,25) bulunamamıştır. Vakalarımızın hepsinde bu damar arteria carotis interna'nın arka duvarından çıkmaktaydı (%100). Kadınlarda arteria choroidea'nın iç çapı 0.56±0.15mm (0.4-0.7mm) iken; erkeklerde ise 0.58±0.18mm (0.4-0.8) olarak bulunmuştur. Kadınlarda arteria choroidea'nın dış çapı 0.67±0.17mm (0.55-0.91mm) iken; erkeklerde ise 0.70±0.16mm (0.6-0.98mm) olarak bulunmuştur. İstatistiksel olarak damarın iç ve dış çapları cinsiyete göre farklılık göstermemekteydi. Sonuç: Arteria choroidea anterior anevrizmalarının endovasküler tedavilerinde iç çapın bilinmesi önem kazanır.

Arteria choroidea anterıor’un çap ve orijini

Objectives: The anterior choroidal artery(AChoA) may be involved in cases of intracranial aneurysms, arteriovenous malformations (AVMs) or intracranial tumors. The diagnostic evaluation of the anterior choroidal artery is required in order to obtain knowledge of the anatomy of this vessel, therefore we decided to examine their origin and diameters in detail. Methods: 80 cerebral hemispheres from 40 autopsy cases (11 female, 29 male) aged between 20 and 71 years were obtained as soon as possible after death. Forty µm thickness of transverse sections were cut by cryostat. The average diameter was calculated. Sex and side differences were statistically analyzed. Results: AChoA were present in 75 (93.75%) hemispheres, whereas in 5 cerebral hemispheres (6.25%) the AChoA was absent. In all autopsy cases, it arose from the posterior wall of the internal carotid artery (ICA) (100%). The inner diameter of the AChoA was 0.56±0.15mm in females;0.58±0.18mm in males. The outer diameter of the AChoA was 0.67±0.17mm in females;0.70±0.16mm in males. No statistically significant difference between genders in terms of the inner and outer diameters of AChoA were found. Conclusion: For the endovascular treatment of AChoA aneurysms, the knowledge of the inner diameter gains importance.

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