【摘要】 目的:探讨螺旋CT多期增强扫描对卵巢囊腺瘤和囊腺癌的诊断价值。方法:对经手术、病理证实的34例卵巢囊腺瘤(癌)的CT表现及三维重建结果进行回顾性分析。结果:34例囊腺肿瘤,浆液性囊腺瘤6例,粘液性囊腺瘤4例,浆液性囊腺癌15例,粘液性囊腺癌9例。CT表现为囊肿型(Ⅰ型)10例,囊实型(Ⅱ型)22例,实质型(Ⅲ型)2例。囊实型(Ⅱ型)又分为以囊性为主型(Ⅱa型)7例,囊实混合型(Ⅱb型)9例,以实性为主型(Ⅱc型)6例。增强后扫描,囊肿型(Ⅰ型),囊壁无强化,囊内局限性增厚分隔静脉期中等度强化;囊实型(Ⅱ型)囊壁结节状增厚、乳头状突起、不规则分隔及实性部分动脉期明显强化;实质型(Ⅲ型)动脉期明显强化。矢状位、冠状位、轴位多层面多角度观察肿瘤与周围脏器的关系。结论:卵巢囊腺瘤以Ⅰ型常见,卵巢囊腺癌以Ⅱ型为主。螺旋CT多期增强扫描能够很好地显示病灶的特点,增强后MPR三维重建可清楚地显示肿瘤与周围脏器的关系,血管重建可清楚显示肿瘤的血管构建形态,对于鉴别卵巢囊腺肿瘤的良恶性和定位诊断具有一定价值。更多还原

【Abstract】 Objective:To evaluate the diagnosis of the ovarian cystadenoma and cystadenocarcinoma by multi-phase contrast enhanced spiral CT.Methods:The multi-phase contrast enhanced the spiral CT and MPR reconstruction results of 34 cases of ovarian cystadenoma and cystadenocarcinoma,which were confirmed by operation and pathology,were analyzed retrospectively.Results:In 34 cases,6 patients were serous cystadenoma,4 patients were mucinous cystadenoma,15 patients were serous cystadenocarcinoma,9 patients were mucinous cystadenocarcinoma.The tumors were classified as cystic(typeⅠ,n=10),cyst-solid(typeⅡ,n=22) and solid types(typeⅢ,n=2).Cyst-solid type was further subdivided into subtype Ⅱa(mainly cystic,n=7),Ⅱb(mixed,n=9) and Ⅱc(mainly solid,n=6).Enhanced scanning,cyst type(Ⅰ),cyst without enhancement capsule thickening separated by periods such as degree of venous enhancement;cystic-solid type(Ⅱ) cyst nodular thickening,papillary protrusions,irregular segregation and solid part of the arterial phase and marked enhancement;real-type(Ⅲ type) arterial phase and marked enhancement.Sagittal,coronal,axial multi-dimensional multi-angle observation of the relationship between the tumor and surrounding organs.Conclusion:Ovarian cystadenoma by typeⅠis common,ovarian cystadenocarcinoma by type Ⅱ-based,multi-phase enhanced spiral CT scan can be a good indication of the characteristics of lesion-enhanced MPR three-dimensional reconstruction can clearly show the relationship between the tumor and surrounding organs,vascular reconstruction can be clearly displayed on tumor blood vessels to build shape for the identification of ovarian cyst gland tumor diagnosis of benign and malignant and positioning of a certain value.更多还原