3.0T MRI在子宫颈癌诊断分期及分化程度评价中的应用价值

发布时间：2018-06-15 08:57

  本文选题：磁共振成像 + 扩散加权成像　； 参考：《山东医药》2015年42期

【摘要】：目的探讨3.0 T MRI在子宫颈癌术前诊断分期和分化程度评价中的应用价值。方法选择行手术治疗并于术前行MRI检查的子宫颈癌患者23例,均行择期宫颈癌切除术。术前均行常规MRI扫描,扫描横断面T2WI、矢状面T2WI、横断面T1WI、冠状面T2WI,于矢状面行小FOV体素内不相干运动(IVIM)DWI技术扫描,得到肿块与正常宫颈标准ADC值(ADCstandard值)、纯扩散系数(D值)等参数。参照妇科肿瘤FIGO 2009分期标准进行术前MRI诊断分期,分别按ADCstandard值0.697×10-3mm2/s、D值0.416×10-3mm2/s为标准进行术前分化程度评价,将MRI诊断分期与分化程度评价结果与术后病理结果比较。结果 MRI术前诊断准确率为100%。术前MRI诊断分期为Ⅰb期7例、Ⅱa15例、Ⅱb期1例,诊断分期正确率为91.3%(21/23)。以ADCstandard值为标准,MRI诊断中低分化13例、高分化9例,中低分化诊断正确率为100%、高分化诊断正确率为90.0%。以D值为标准,MRI诊断中低分化11例、高分化8例,中低分化诊断正确率为84.6%、高分化诊断正确率为80.0%。结论应用3.0T MRI对子宫颈癌进行术前诊断分期具有较高的准确性,IVIM技术参数中ADCstandard值可用于评价肿瘤分化程度。
[Abstract]:Objective to evaluate the value of 3.0 T MRI in preoperative diagnosis and differentiation of cervical carcinoma. Methods 23 patients with cervical cancer underwent surgical treatment and MRI examination before operation. All patients underwent elective resection of cervical cancer. Conventional MRI scanning was performed before operation, T _ 2WI, T _ 2WI, T _ 1WI, T _ 2WI on the sagittal plane, and IVIMI DWI were performed on the sagittal plane to obtain the parameters such as the standard ADC value of mass and normal cervix, ADCstandard value, pure diffusion coefficient (D value). According to Figo 2009 staging criteria for gynecological tumors, preoperative MRI staging was performed. According to the standard value of 0.697 脳 10 ~ (-3) mm ~ (-2) / s ~ (-1) D value 0.416 脳 10-3mm2/s, the preoperative differentiation degree was evaluated, and the results of diagnosis and differentiation were compared with those of postoperative pathology. Results the diagnostic accuracy of MRI was 100%. Preoperative MRI was performed in 7 cases of stage 鈪，

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