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《Journal of Clinical Radiology》 2007-04
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A Preliminary Comparative Study of Peritumoral Edema with Perfusion CT and Perfusion MR Imaging

KANG Liqing,ZHANG Yunting,SUN Shimei Department of Radiology,General Hospital,Tianjin Medical University,Tianjin 300052,P.R.China  
Objective To compare the diagnostic value of rCBV in peritumoral edema region of high grade tumors of neuroepithelial tissue and metastasis using perfusion CT and perfusion MR imaging.Materials and Methods Both perfusion CT scan and perfusion MR scan were performed in 14 cases of high grade tumors of neuroepithelial tissue and 8 cases of metastasis,the results of rCBV in peritumoral edema were analyzed.Results Both perfusion CT and perfusion MR imaging demonstrated that the rCBV in peritumoral edema region was higher in high grade tumors of neuroepithelial tissue than that in metastasis with statistical significance(P0.05).The area under the ROC curve was 0.911 for perfusion CT,and 0.929 for perfusion MR imaging respectively.Conclusions The rCBV in peritumoral edema region derived from perfusion CT and perfusion MR imaging have great value in differentiating high grade tumors of neuroepithelial tissue and metastasis,perfusion MR imaging is superior to perfusion CT.
【CateGory Index】: R730.4
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