50例宫颈癌术前MRI诊断与分期

目的 分析宫颈癌的MRI表现,评价MRI对宫颈癌术前诊断与分期的价值.方法 搜集本院2009年1月～2013年1月50例经病理证实的宫颈癌患者的临床资料和MRI资料.年龄32～75岁,平均45岁.主要临床症状为阴道不规则流血,包括接触性、性交后和绝经后.病理诊断：鳞癌42例,腺癌6例,腺鳞癌2例.50例患者中21例行手术治疗,其余行放疗.回顾性分析其MRI影像特征,观察肿瘤的位置、大小、信号特征以及对周围组织的侵犯情况.结果 宫颈癌MRI表现：T1WI呈低或等信号,T2WI呈高信号,与正常宫颈基质（低信号）及宫旁脂肪（高信号）形成良好的对比,GD-DTPA增强呈轻度均匀或不均匀强化.同时显示宫体、宫旁、阴道、盆壁、器官侵犯及淋巴结转移等.结论 MRI显示宫颈癌瘤灶、侵犯范围与途径,明显优于其他影像学检查,对发现宫旁侵犯情况明显优于临床,应作为宫颈癌术前常规的影像学检查方法.

MRI for diagnosis and staging of cervical cancer before surgery

Objective To analyze the value of MRI evaluation diagnosis and staging for cervical cancer. Methods A- narzed the clihical data and MRI of 50 cases pathologically confirmed cervical cancer patients. Aged 32-75 years, mean age 45 years. The main clinical symptom of irregular vaginal bleeding, included post-contact, sexual intercourse, and after menopause. Pathological diagnosis of squamous cell carcinoma in 42 cases, six cases of adenocarcinoma, adenosquamous carcinoma in 2 cases. 21 of 50 patients underwent surgical treatment,and the remaining radiotherapy. retrospectively analyzed MRI features observed tumor location, size, signal characteristics as well as violations of the surrounding tissue. Results Cervical MRI showed：T1WI showed low or equal signal, T2WI showed high signal, with normal cervical stromal （low signal） and parametrial fat （high signal） to form a good natural contrast, GD-DTPA en- hancement showed mild degree homogeneous or inhomogeneous enhancement. Also showed palace,uterine,vaginal, pelvic wall,organ invasion and lymph node metastasis. Conclusion MRI of cervical tumor foci display violated the scope and ways, superior to other imaging studies,the discovery of parametrial invasion is significantly better than the clinical situation, as a former cancer eheck methods should be routine imaging methods.