摘要
目的:探讨子宫内膜癌的MRI及彩超表现,评价MRI及彩超对子宫内膜癌的诊断及术前分期的价值。材料和方法:回顾性分析24例经病理证实的子宫内膜癌患者MRI及彩超征象,对18例行手术治疗者术前通过MRI及彩超对肿瘤进行分期,并与术后病理结果相对照。结果:子宫内膜癌MRI表现:T2WI表现为子宫内膜增宽,癌灶信号高于肌层,但略低于邻近尚残留的内膜和腔内黏液。分期准确度为77.8%,对肌层浸润深度判断的准确度为87.5%。子宫内膜癌彩超表现:肿瘤内彩色血流信号丰富,呈现低阻力血流,RI=0.35±0.05, 彩超分期准确度77.8%,对肌层浸润深度判断的准确度为75%。结论:MRI及彩超能多方位清晰显示子宫内膜癌癌灶及侵犯范围;对子宫内膜癌的术前分期有很高的价值。经阴道彩色多普勒超声(TVCDS)对肌层浸润深度及邻近盆腔有无转移结节病变显示不如MRI清晰、直观,综合分析判断将大大提高子宫内膜癌的诊断及术前分期的准确性。
Abstract
Objective: To discuss MRI and color Doppler flow ultrasound imaging(CDFI) features of endometrial carcinoma and to evaluate MRI and CDFI in its preoperative staging. Materials and Methods: Preoperative MRI and CDFI of the pelvis were performed in 18 patients with pathologically proved endometrial carcinoma. The location of the lesion and the depth of mascular invasion were observed. The findings were compared with pathologic results. Results: MRI findings on T2WI usually included thickening of the endometrium, the signal was higher than muscular layer but a bit lower than adjacent remaining tunica intima and mucus in uterine cavity. The staging accuracy of MRI was 77.8%, and accurate evaluation of the depth of muscular invasion was 87.5%. CDFI findings included abundant color Doppler flow signal and low resistant blood flow in the focus. The staging accuracy of CDFI was 77.8%, accuracy of assessment of the depth of muscular invasion was 75%. Conclusion: MRI and CDFI can clearly display endometrial carcinoma and its extent and depth of involvement from different directions. MRI and CDFI have high value in the diagnosis of endometrial carcinoma transvaginal color Doppler sonography which has high resolution speciality, is a sensitive and simple way for screening endometrial carcinoma, but it is influenced by operators experience and other factors thus is inferior to MRI in clearly and directly displaying the depth of muscular invasion and metastatic nodules in adjacent structures. The diagnosis and staging accuraey of MRI and CDFI in endometrial carcinoma will be increased if these methods are combined in diagnosis.
关键词
子宫内膜肿瘤 /
磁共振成像 /
超声检查 /
多普勒 /
彩色
Key words
endometrial neoplasms /
magnetic resonance imaging /
ultrasonography /
Doppler /
color
苗 红;陈亚宾;高宗辉.
MRI及彩超对子宫内膜癌的诊断价值[J]. 中国临床医学影像杂志. 2006, 17(2): 91-93
MIAO Hong;CHEN Ya-bin;GAO Zong-hui.
Diagnostic value of MRI and CDFI in endometrial carcinoma[J]. Journal of China Clinic Medical Imaging. 2006, 17(2): 91-93
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