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目的 :着重探讨卵巢恶性肿瘤的 MRI特征及女性盆腔 MRI扫描技术。方法 :分析 5 9例中经病理证实的卵巢恶性肿块37个 (31例 )的 MRI征象 ;5 9例卵巢肿块 ,经超声、CT、MRI检查及手术病理证实 ,其中良性 2 8例 (33个肿块 ) ,恶性 31例 (37个肿块 )。15例用常规自旋回波序列和体线圈、18例用快速自旋回波序列和体线圈、2 6例用快速自旋回波序列和盆腔相控线圈。结果 :在37个卵巢恶性肿块中 ,MRI诊断的准确性为 87%、敏感性为 86 %、特异性为 88%、阳性预检值 (PPV)为 85 %、阴性预检值 (NPV)为89%。结论 :应用快速自旋回波序列和盆腔相控线圈所获得的图像质量好、速度快。应用快速自旋回波序列和盆腔相控线圈的 MRI是诊断卵巢恶性肿块最好的影像学方法 ,为临床治疗和预后提供可靠的依据
Objective: To investigate the MRI features of ovarian malignancy and female pelvic MRI scans. METHODS: A total of 37 (31) MRI features of 59 malignant ovarian masses confirmed by pathology were analyzed; 519 ovarian masses were confirmed by ultrasound, CT, MRI, and pathology, of which 28 were benign (33 Mass), 31 cases of malignant (37 masses). 15 cases used conventional spin echo sequences and body coils, 18 cases used fast spin echo sequences and body coils, 26 used fast spin echo sequences and pelvic phased coils. RESULTS: In 37 malignant ovarian masses, the diagnostic accuracy of MRI was 87%, sensitivity was 86%, specificity was 88%, positive pretest value (PPV) was 85%, and negative pretest value (NPV) was 89%. Conclusion : The images obtained by applying fast spin echo sequences and pelvic phased coils are of good quality and speed. MRI using fast spin echo sequences and pelvic phased coils is the best imaging method for diagnosing malignant ovarian masses, providing a reliable basis for clinical treatment and prognosis