Fetal Origin of the Posterior Cerebral Artery Demonstrated on Tc-99m Hexamethylpropyleneamine Oxime Brain SPECT Balloon Occlusion Test

被引：0

作者：

Dunnavant, Floyd Daniel ^{[1
]}

Bhambhvani, Pradeep G. ^{[1
]}

Lursen, Katherine E. Perrien ^{[1
]}

Horton, Joseph A. ^{[1
]}

机构：

[1] Univ Alabama Birmingham, Dept Radiol, Birmingham, AL 35249 USA

来源：

CLINICAL NUCLEAR MEDICINE | 2011年 / 36卷 / 05期

关键词：

fetal; posterior cerebral artery; SPECT; crossed cerebellar diaschisis; balloon occlusion; COLLATERAL CIRCULATION; STROKE; RISK;

D O I：

10.1097/RLU.0b013e31820ade44

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Fetal origin of the posterior cerebral artery is a common variant of the circle of Willis. We present the case of a 78-year-old man with a right carotid space mass who underwent a preoperative right carotid artery balloon occlusion test. Brain SPECT after injection of Tc-99m hexamethylpropyleneamine oxime demonstrated markedly decreased regional cerebral blood flow to the entire right cerebral hemisphere. Notably, blood flow to the right occipital lobe was also decreased, suggesting a fetal origin of the posterior cerebral artery, which was confirmed with angiography. Additionally, SPECT images demonstrated decreased left cerebellar blood flow, consistent with crossed cerebellar diaschisis.

引用

页码：392 / 393

页数：2