目的 分析女性盆腔占位性疾病 的MRI图像特征并探讨其诊断价值。方法 选取我院2016年1月-2016年12月收治的盆 腔占位性疾病女性患者74例，收集患者临 床及影像学资料，观察盆腔占位性在不同 序列MRI中的影像学表现，并以手术病理 学活检为标准，分析女性盆腔占位性疾病 的MRI扫描对诊断率。结果 74例患者中， 54例(72.97%)患者为囊性占位性病变，其 中15例卵巢囊腺瘤、18例卵巢子宫内膜异 位囊肿、10例盆腔脓肿、11例卵巢囊肿， 20例(27.02%)患者为囊实性占位性病变， 包括卵巢畸胎瘤者11例、卵巢癌者9例， MRI扫描其诊断准确率为94.59%(70/74)。 盆腔囊性占位性病变病灶较大，边界清 晰，信号均匀且增强后强化不明显。在囊 实性占位性病变中，卵巢畸胎瘤瘤体直径 均>5cm，边界清晰，T1WI呈高信号，T2WI 呈稍高信号，瘤体内可见骨骼、牙齿等低 信号，脂肪抑制序列无信号显示，增强强 化不明显；卵巢癌病灶边界模糊，囊性区 域T1WI呈低信号，增强后病灶呈现中高度 强化，病灶内可见壁结节及分隔。结论 MRI扫描能清晰显示不同盆腔良、恶性疾 病占位性疾病的影像特征，诊断准确率较 高，可为临床提高可靠影像学资料。

Objective To analyze the image features of MRI scan in female pelvic cavity occupying diseases and to explore its diagnostic value. Methods A total of 74 female patients with pelvic cavity occupying diseases were selected from our hospital from January 2016 to December 2016, collect the patients' general information, imaging data, and to observe the imaging features of pelvic mass in different sequences of MRI, the diagnostic accuracy of MRI scan in female pelvic cavity occupying diseases was analyzed by comparing with biopsy. Results Among the 74 patients, 54 cases (72.97%) cystic lesions were present, 15 were ovarian cystadenoma, 18 cases of ovarian endometriosis cyst, 10 cases of pelvic abscess, 11 cases of ovarian cyst, 20 cases (27.02%) had cystic solid lesions, including 11 cases of ovarian teratoma and 9 cases of ovarian cancer, the diagnostic accuracy of MRI scan was 94.59% (70/74). Pelvic cystic space occupying lesions have larger lesions with clear boundaries, the signal is uniform and the strengthening is not obvious. In cystic solid occupying lesions, the diameter of ovarian teratoma tumors is >5cm, the boundary is clear, T1WI is high signal, and T2WI is slightly higher, bones, teeth and other low signals can be seen in the tumor, the fat suppression sequence showed no signal enhancement, and the enhancement was not obvious; borderline lesions in ovarian cancer, the cystic area T1WI showed low signal intensity, and the enhanced lesions showed moderate enhancement. Wall nodules and septa were observed in the lesions. Conclusion MRI scan can clearly display the imaging features of different benign and malignant diseases of pelvic cavity occupying diseases, and the diagnostic accuracy is high, and reliable imaging data can be improved for clinical use.