Implications of a Variation of Middle Cerebral Artery in the Interpretation of Transcranial Doppler

J Korean Neurol Assoc > Volume 25(1); 2007 > Article

Journal of the Korean Neurological Association 2007;25(1): 130-132.

중대뇌동맥 변이의 경두개 도플러 뇌혈류 검사 소견 및 의의

조광철, 박중현 임성진 한상원 김정연 박재현

인제대학교 의과대학 상계백병원 신경과학교실

Implications of a Variation of Middle Cerebral Artery in the Interpretation of Transcranial Doppler

Kwang Chul Cho

Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea

Abstract

The accessory middle cerebral artery (MCA) is a variation of the MCA branching, which originates from the anterior cerebral artery (ACA). It is deemed as an incidental anatomical finding and the incidence is reported to be 0.3% to 4.0%. Although the accessory MCA is infrequent it nevertheless may have important implications in the interpretation of transcranial Doppler (TCD) findings. We report two patients having an accessory MCA and its clinical significance.KeyWords:Accessory middle cerebral artery, Variation of middle cerebral artery, Transcranial Doppler