TRADITIONAL POSTER - ismrm

Poster Sessions
2226. Varied Vasomotor Responses Among Brain Territories in Unilateral ICA Stenosis Patients Studied
Using Breath-Hold BOLD MRI
Wan Chun Kuan 1 , Ting Yu Chang 2 , Keh Shih Chuang 1 , Ho Fai Wong 3 , Tsong Hai Lee 2 , Ho Ling Liu 4,5
1 Dept. of Biomedical Engineering and Environmental Sciences, National Tsing Hua Univ., Hsinchu, Taiwan; 2 Stroke Center,
Department of Neurology, Chang Gung Memorial Hospital; 3 Department of Neuroradiology, Chang Gung Memorial Hospital; 4 Dept.
of Medical Imaging and Radiological Sciences, Chang Gung Univ.; 5 Dept. of Medical Imaging and Intervention, Chang Gung
Memorial Hospital
Impaired cerebral vasoreactivity could be one of the predictors for hyperperfusion after carotid interventions for patients with internal carotid artery (ICA)
stenosis. This study aimed to evaluate the differences of hemodynamic responses among blood-supply territories, induced by vasodilatation following a
breath-holding task, in patients with unilateral ICA stenosis using BOLD MRI. The temporal correlation between bilateral vasomotor responses in the MCA
territories was utilized as an index. The results showed significantly impaired responses of the lesion side as compared to the normal side (p