| Effect of Supratentorial Stroke on Cerebellar Hemodynamic Parameters- Assessment by Dynamic Susceptibility Contrast MR Imaging |
| Si-Ryung Han, Bum-Soo Kim, and Tae-Ho Guak |
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| Copyright © 2002 The Korean Society of Clinical Neurophysiology |
| This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium,
provided the original work is properly cited. |
| ABSTRACT |
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Background & Purpose : Dynamic susceptibility contrast MR imaging, one method of perfusion MRI, was developedto define cerebral hemodynamic status with good anatomical resolution. The authors investigated hemodynamicparameters using this imaging method, in an effort to identify hemodynamic changes on the remote crossed cerebellumof patients with a supratentorial infarct.Methods : Dynamic susceptibility contrast MR imaging was performed in 15 patients with only unilateral supratentorialinfarcts. Imaging was obtained at the anatomic level of the cerebellum. rCBF, rCBV, MTT and TP were determinedover both cerebellar hemispheres of interest.Results : The rCBF and rCBV values of the contralateral cerebellar hemisphere were significantly more decreasedthan those of the ipsilateral cerebellar hemisphere in 12 patients(p=0.028, 0.033). MTT and TP values of the contralateraland ipsilateral cerebellar hemispheres didn |
| Key words:
Diaschisis, Dynamic susceptibility contrast MRI, Cerebral blood flow, Cerebral blood volume, Mean transit time, Time to peak |
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