Abstract #3288
Hemodynamic variations and the direction of ophthalmic artery flow in patients with internal carotid artery stenosis before and after stenting: A DSC MRI study
Pei-Shan Ho 1 , Ting-Yu Chang 2 , Kuo-Lun Huang 2 , Feng-Xian Yan 1,3 , Ho-Fai Wong 4 , Tsong-Hai Lee 2 , and Ho-Ling Liu 1,4
1
Medical Imaging and Radiological Sciences,
Chang Gung University, Taoyuan, Taiwan,
2
Neurology
and Stroke Center, Chang Gung Memorial Hospital and
Chang Gung University College of Medicine, Taoyuan,
Taiwan,
3
Radiology,
Taipei Medical University - Shuang Ho Hospital, New
Taipei City, Taiwan,
4
Medical
Imaging and Intervention, Chang Gung Memorial Hospital,
Taoyuan, Taiwan
Severe internal carotid artery (ICA) stenosis often
accompanies reversed ophthalmic artery (OA) flow;
however, the quantified comparison between OA flow
forward and reversed was not documented. This study
compared the indicative parameter maps of dynamic
susceptibility contrast (DSC) MRI between subjects
suffering from unilateral ICA stenosis with and without
OA flow reversed. 51 unilateral ICA stenosis patients
underwent DSC MRI before and after stenting. Contrary to
patients with OA flow forward, patients with OA flow
reversed have increased mean transit time as well as
arrival time delay before stent surgery. Moreover, the
effectively recovery was detectable after carotid stent
replacement.
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