【摘要】：目的:探討基于ISHIM序列的IVIM-DWI在顱腦星形細(xì)胞腫瘤分級中的應(yīng)用價(jià)值。方法:收集經(jīng)病理證實(shí)的星形細(xì)胞腫瘤患者42例,高、低級別腫瘤分別為28例(Ⅲ級10例、IV級18例)、14例(Ⅰ級1例、Ⅱ級13例)。所有患者均行常規(guī)MRI、ISHIM IVIM-DWI及增強(qiáng)掃描。測量腫瘤實(shí)質(zhì)區(qū)、周圍水腫區(qū)及對側(cè)正常腦白質(zhì)區(qū)參數(shù)值,并進(jìn)行統(tǒng)計(jì)學(xué)分析。結(jié)果:腫瘤實(shí)質(zhì)區(qū):高級別組D值低于低級別組,D*值、f值均高于低級別組,差異且均具有統(tǒng)計(jì)學(xué)意義;周圍水腫區(qū):高級別組D值低于低級別組,差異具有統(tǒng)計(jì)學(xué)意義,D*值、f值間差異無統(tǒng)計(jì)學(xué)意義;高、低級別組對側(cè)正常腦白質(zhì)區(qū)D、D*、f值的差異均無統(tǒng)計(jì)學(xué)意義。結(jié)論:基于ISHIM的IVIM-DWI成像獲得的D、D*、f值有助于腫瘤級別的判定,在高低級別星形細(xì)胞腫瘤的鑒別診斷中具有較大的應(yīng)用價(jià)值。
[Abstract]:Objective: to evaluate the value of IVIM-DWI based on ISHIM sequence in the classification of brain astrocytic tumors. Methods: Forty-two cases of astrocytoma confirmed by pathology were collected. There were 28 cases of high grade and low grade tumors (18 cases of grade 鈪，

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