title: Cerebral schistosomiasis: diffusion-weighted imaging helps to differentiate from brain glioma and metastasis.
abstract: Background Diffusion-weighted imaging (DWI) was introduced into clinical use some years ago. However, its use in the diagnosis of cerebral schistosomiasis has not been reported. Purpose To investigate the ability of the apparent diffusion coefficient (ADC) value of DWI in the diagnosis of cerebral schistosomiasis, and to differentiate it from brain high-grade gliomas and metastasis. Material and Methods Conventional brain MRI with pre-contrast, post-contrast, and DWI was performed on 50 cases of cerebral schistosomiasis, high-grade glioma, and brain metastasis. The ADC values of the three lesions, the proximal and the distal perifocal edema were measured. In order to remove the individual difference effect of ADC values, relative ADC (rADC) values were calculated through dividing the ADC value of the lesion area by that of the contralateral normal white matter. rADC values were used to evaluate the differences among cerebral schistosomiasis, brain high-grade gliomas, and metastasis. Results rADC of cerebral schistosomiasis was significantly lower than rADC of brain metastasis ( P < 0.05), without any significant differences when compared with high-grade gliomas. rADC of proximal perifocal edema in cerebral schistosomiasis was significantly higher than in high-grade gliomas ( P < 0.010), but not different compared with brain metastasis. Conclusion DWI examination with ADC values of lesions and proximal perifocal edema might be helpful in the exact diagnosis of cerebral schistosomiasis.
authors.affiliation: 1 Clinical Medical College of Yangtze University, Radiology Department of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, PR China.
authors.forename: Jinbai
authors.initials: J
authors.lastname: Huang
authors.affiliation: 1 Clinical Medical College of Yangtze University, Radiology Department of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Luo
authors.affiliation: 1 Clinical Medical College of Yangtze University, Radiology Department of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Peng
authors.affiliation: 2 Clinical Medical College of Yangtze University, Neurology Department of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, PR China.
authors.forename: Tao
authors.initials: T
authors.lastname: Yang
authors.affiliation: 1 Clinical Medical College of Yangtze University, Radiology Department of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, PR China.
authors.forename: Huanghua
authors.initials: H
authors.lastname: Zheng
authors.affiliation: 1 Clinical Medical College of Yangtze University, Radiology Department of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, PR China.
authors.forename: Chunping
authors.initials: C
authors.lastname: Mao
mesh_terms: D000328:Adult; D000368:Aged; D001921:Brain / Q000000981:diagnostic imaging* / Q000469:parasitology*; D001932:Brain Neoplasms; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D005910:Glioma; D006801:Humans; D008297:Male; D008875:Middle Aged; D012372:ROC Curve; D015203:Reproducibility of Results; D012552:Schistosomiasis / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity
keywords: Diffusion-weighted imaging (DWI); apparent diffusion coefficient (ADC); brain metastasis; cerebral schistosomiasis; glioma