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