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MRI Features and Dissemination Approach of Intracranial Gliomas after Operation / 实用放射学杂志
Journal of Practical Radiology ; (12): 153-157, 2010.
Article in Chinese | WPRIM | ID: wpr-403385
ABSTRACT
Objective To analyse the routes and MRI characteristics of disseminated intracranial gliomas after operation. Methods 10 patients of intracranial gliomas confirmed by pathology and intracranial dissemination after operation underwent MRI examina-tions including T_1 WI, FSE T_2 WI, FLAIR and fat-suppressed T_1 WI after intravenous injection of Gd-DTPA. In addition, 4 cases were also examinated with DWI, 1 case with SWI and DTI. Results In 10 cases,there were glioblastoma in 7 cases,grade Ⅱ astro-cytoma in 2 and grade Ⅲ astrocytoma in one. The disseminated tumors were found by MRI in 4 to 56 months after operation. The le-sions in all patients were confirmed with the comparison of contrast-enhanced MRI positive signs between preoperation and post-operation. Plain MR scanning showed line-like thicking with isointensity in 1/7 case/time (C/T)and multiple noduli in 5/7 (C/T) on T_1 WI respectively;shallowed cortical sulci and cistern in 2/7(C/T) and nodular in 5/7(C/T) on T_2 WI;shaUowed cortical aulci and cistern in 2/7 (C/T) and nodular in 6/7(C/T) on FLAIR. The signal intensity of noduli of disseminated tumors in 7 cases were in complete consistency with that of primary neoplasm , however, in 3 cases, it was inconsistent. Enhanced scanning showed 7 ca-ses with the signs of line-like thicking, 7 cases with noduli , 6 cases withcast-like shape" sign and 6 cases with different extent of hydrocephalus. Conclusion Enhanced MRI can be used as a most useful and reliable monitoring tools for detecting dissemination of brain glioma.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Practical Radiology Year: 2010 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Practical Radiology Year: 2010 Type: Article