“Transcallosal” periventricular anastomosis in moyamoya disease: the fourth periventricular anastomosis and a potential predictor of hemorrhage

Choroidal anastomosis is a risk factor for hemorrhage in moyamoya disease. One variant of choroidal anastomosis, “transcallosal anastomosis,” originates from the medial posterior choroidal artery, and penetrates the corpus callosum to reconstruct the pericallosal artery. We aimed to investigate the prevalence and the bleeding rate of transcallosal anastomosis using sliding thin-slab maximum intensity proje ction reformatted from magnetic resonance angiography (MRA).

Source: Journal of Stroke and Cerebrovascular Diseases - November 2, 2023 Category: Neurology Authors: Yukihiro Yamao, Takeshi Funaki, Hiroki Yamada, Masakazu Okawa, Yohei Mineharu, Takayuki Kikuchi, Yasutaka Fushimi, Hiroharu Kataoka, Kazumichi Yoshida, Jun C Takahashi, Susumu Miyamoto, Yoshiki Arakawa Source Type: research