【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(jí)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(jí)別腫瘤分別為28例(Ⅲ級(jí)10例、IV級(jí)18例)、14例(Ⅰ級(jí)1例、Ⅱ級(jí)13例)。所有患者均行常規(guī)MRI、ISHIM IVIM-DWI及增強(qiáng)掃描。測(cè)量腫瘤實(shí)質(zhì)區(qū)、周?chē)[區(qū)及對(duì)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(jí)別組D值低于低級(jí)別組,D*值、f值均高于低級(jí)別組,差異且均具有統(tǒng)計(jì)學(xué)意義;周?chē)[區(qū):高級(jí)別組D值低于低級(jí)別組,差異具有統(tǒng)計(jì)學(xué)意義,D*值、f值間差異無(wú)統(tǒng)計(jì)學(xué)意義;高、低級(jí)別組對(duì)側(cè)正常腦白質(zhì)區(qū)D、D*、f值的差異均無(wú)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(jí)別的判定,在高低級(jí)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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