| ObjectiveApplication of SPECT perfusion imaging in ischemic cerebrovascular diseases and its therapeutic evaluation after intravascular stenting using in ischemic cerebrovascular.Materials and Methods27 patients with cerebral vessels stenosis were confirmed by digital subtraction angiography (DSA) and checked by CT,MR and 99mTc-ECD SPECT perfusion imaging.10 of them underwent angioplasty in site of stenosis, SPECT perfusion imaging was used in 7 of 10 cases after 3-6 months of operation, Ratio of rCBF in ischemic area to the same side cerebellum were determined by means of semi-quantitative analyses. And improvement of the regional cerebral blood flow after operation be evaluated.ResultNumbers of ischemic regions were founded by SPECT perfusion imaging more than that founded by CT or MR, but except the basal ganglia and the periventricular white matter.The mean ratio of 17 ischemic regions before operation was 73.42%, in comparison with 80.67% after operation in 7 operated patients (p<0.01), that showed the blood flow improved obviously. Conclution99mTc-ECD SPECT perfusion imaging may reflect sensitively to the ischemic foci and may evaluate perfectly the condition of regional cerebral blood flow after intravascular stenting. |
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