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《Clinical Medical Journal of China》 2005-05
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Brain Metastasis and Meningomas:Differentiation by Perfusion CT Imaging

XU Jianfeng SHI Yuxin (Department of Radiology,Affiliated Hospital of Nantong Unviersity,Nantong 226001,China)  
Objective:To study the value of perfusion CT in differential diagnosis between brain metastasis and meningomas.Methods: Twenty-four patients with cerebral neoplasm (11 brain metastasis,13 meningomas.)underwent perfusion CT imaging with Somatom plus 4 helical CT.Relative cerebral blood volume(rCBV),relative cerebral blood flow (rCBF),mean transi time (MTT),time to peak(TTP) and enhancement altitude of tumors and contralateral normal brain tissue were calculated.The student t test was used to determine if there was a significant difference in the perfusion parameters and the mean ratios (neoplasm/contralateral normal brain tissue,N/C)of rCBV、rCBF and MTT between two groups.Results:The rCBV of meningomas and its mean ratios of rCBV and rCBF were significantly higher than those of metastatic neoplasms (P<0. 05) ,but there was no significant difference in the rCBF and MTT between two groups(P>0. 05) The perfusion parameters of about 15% of the meningomas approximated those of metastasis.The rCBF and rCBV of the two cases with recurrent meningomas approximated those of primary brain tumors.The average peak value of metastasis was significantly lower than those of meningomas,but there was no significant difference in TTP between two groups(P>0. 05) .The curve type of metastasis was almost similar to that of meningomas,but a few curves of metastasis (2/11) were different to those of meningomas.Conclusion:Perfusion CT is very useful in differentiating meningomas from metastasis,and can diagnose recurrent cerebral neoplasms after operation.
【CateGory Index】: R739.4
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【Citations】
Chinese Journal Full-text Database 4 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 MA Yi-chuan1,FU Kai2,CHEN Yan1,DING Qiang1,SUN Jing-qiu1(1.Department of Radiology,The First Affiliated Hospital of Bengbu Medical College,Bengbu Anhui 233004;2.Department of Radiology,Sichuan Provincial People′s Hospital,Chengdu Sichuan 610072,China);CT perfusion imaging of astrocytoma and its correlation with the expression of Ras homologue A[J];Journal of Bengbu Medical College;2009-08
2 ;The Application of CT Perfusion Imaging in Diagnosis of Craniocerebral Tumor and Its Prospect[J];Journal of Practical Radiology;2007-09
3 SONG Liping,JIN Hongxing,XU Shuming.Department of CT,Shanxi Tumor Hospital,Taiyuan 030013,China;CT diagnosis of metastatic tumor in brain[J];Chinese Remedies & Clinics;2002-02
4 MA Yi-chuan,JIANG Jing,FU Kai;Progress of perfusion imaging and CTperfusion imaging and their application in encephalon tumors[J];Practical Journal of Clinical Medicine;2006-06
5 SHI Yu xin, XU Jian feng, CHI Ming ming Department of Radiology, Affiliated Hospital of Nantong University, Nantong 226001, China;The preliminary research on the quantitative perfusion measurement of meningioma by CT perfusion imaging[J];Chinese Journal of Radiology;2004-12
6 SHI Yu-xin, XU Jian-feng. Department of Radiology, Affiliated Hospital of Nantong University, Nantong 226001, China;Peritumoral brain edema in intracranial tumor evaluated by CT perfusion imaging[J];Chinese Journal of Radiology;2005-05
7 HU Chun-hong WU Qing-de WANG Xue-yuan ZHU Wei SHEN Hai-lin FU Yin-di DING Yi. Center of Medical Imaging,the First Affiliated Hospital of Soochow University,Suzhou 215006,China;An improved method of quantitative assessment of regional cerebral blood flows by perfusion CT at the general infusion rate[J];Chinese Journal of Radiology;2007-01
8 ZHAO Zhen-jun,LIANG Chang-hong,XIE Shu-fei,HE Hui,RU Guang-teng (Department of Radiology,the Guangdong Provincial People's Hospital,Guangzhou 510080,China);CT perfusion in patients with lung neoplasms[J];Chinese Journal of Medical Imaging Technology;2004-02
9 WEI Xin-hua, LONG Li-ling, HUANG Zhong-kui,LI Wen-mei, YE Wei (Department of Radiology,the Central Hospital of Hengyang,Hengyang421001, China);Perfusion-weighted MR imaging in preoperative assessment of histological grade of astrocytoma[J];Chinese Journal of Medical Imaging Technology;2004-03
10 GAO Yang, NIU Guang-ming~*, HAN Xiao-dong, GUO Dong-ling, ZHANG Ying(Department of MR,First Affiliated Hospital, Inner Mongolia Medical College, Huhhot 010050, China);Combined application of MR imaging technique in astrocytoma[J];Chinese Journal of Medical Imaging Technology;2005-03
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