常見子宮惡性腫瘤的MRI診斷價值探討(附4例報吿)

Evaluate of MRI Diagnosis of Uterine Carcinoma

目的評價磁共振成像(MRI)對常見子宮惡性腫瘤的定性診斷及分期診斷的價値。材料和方法對4例病理證實的子宮惡性腫瘤的MRI徵像進行分析,並綜合文獻,與常規超聲檢查對照,對其定性診斷和臨床分期診斷行對照研究。所有病例均採用T1WI、T2WI及其抑脂序列和T1WI增強掃描,並在Ax、Sag和Cor三個層面成像;且所有病例均常規行盆腔超聲檢查。結果在4例子宮惡性腫瘤術前MR1診斷中,子宮内膜癌2例,ⅡB期1例、ⅢA期1例;宮頸癌2例,ⅡA期和ⅡB各1例。所有病例均與手術病理結果和臨床分期相符合,但術前超聲檢查顯示4例病變均未行分期診斷,且其中1例未予定性診斷,結論MRI能多方向、多序列清晰顯示子宮惡性腫瘤的病灶及侵犯範圍,對腫瘤的定性診斷和分期診斷明顯優於常規超聲檢查方法,MRI應成爲子宮惡性腫瘤術前常規的影像檢查方法。

Objective To study MR imaging appearances and evaluate the value and diagnostic accuracy of staging in uterine carcinoma.Materials&Methods 4 patients with histologically proved uterine carcinoma were analyzed by MRI and US combining literatures,MRI Scan sequence were consisted ofTl-Weighted obtained before and after contrast media administration,T2-Weighted and FS T2-Weighted.And all lession were examined on the Ax,Sag and Cor imaging orientation.Results 2 the endometrial carcinomas and 2 the cervical carcinomas were showed in MRI diagnosis pre-operation,ⅡB andⅢA of different staging endometrial carcinoma andⅡA andⅡB of different staging cervical carcinoma were exactly the same as histology and clinical staging,but no diagnostic accuracy of staging in 4 uterine carcinoma,were seen on US,and 1 of 4 case was not demonstrated.Conclusion MR imaging is valuable for staging and diagnosing uterine carcinoma.