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目的分析脑膜瘤的上皮型、纤维型、血管瘤型、间变型等4个常见亚型肿瘤实质和瘤周水肿区的血供,评价动态增强磁化率MR(dynamicsusceptibility-contrastMR,D)SC灌注成像技术表达不同亚型脑膜瘤灌注特点的可行性。方法对33例经病理证实的脑膜瘤患者行手术前DSCM灌R注成像扫描。测量肿瘤实质部分及瘤周水肿区最大相对脑血容积(relativecerebralbloodvolurmCeB,V)值及相应部位相对平均通过时间(relativemeantransittime,rM数TT值)并将结果进行分组统计分析。结果血管瘤型脑膜瘤实质部分的最大rCBV值高于其它亚型,有统计意义差异(方差分析,P<0.05);间变性脑膜瘤瘤周水肿区的最大rCBV值高于其它亚型,有统计意义差异(方差分析,P<0.05);各亚型间rMTT值无统计意义差异。结论DSCMR灌注成像对脑膜瘤的分型有临床价值。
Objective To analyze the blood supply of four common subtypes of meningioma, including epithelial type, fibro type, hemangioma type and mimetic type, and to evaluate the dynamic susceptibility-contrast MR (D) SC perfusion imaging Feasibility of expressing different subtypes of meningioma perfusion technique. Methods Thirty-three patients with pathologically proven meningioma underwent preoperative DSCM perfusion imaging. The relative relative cerebral blood volume (relative cerebral blood volumeCeB, V) and the relative mean transit time (rMTT) of the tumor and the peritumoral edema were measured, and the results were grouped and statistically analyzed. Results The maximum rCBV value of the substantial part of hemangiomas was higher than that of other subtypes, with statistical significance (ANOVA, P <0.05); the maximum rCBV value of perihematomal meningiomas was higher than other subtypes Statistical significance difference (analysis of variance, P <0.05); There was no significant difference in the rMTT values among different subtypes. Conclusion DSCMR perfusion imaging of meningioma has clinical value.