Objective To sumarize the sonographic features of prolonged abortion with an attempt to facilitate the differential diagnosis of prolonged abortion. Methods Totally 94 patients of suspected prolonged abortion underwent both transvaginal ultrasound ( TVS ) and color Doppler ultrasonography. The ultrasound results were compared with those of pathological examinations, and the sonographic features of some common prolonged abortion were summarized. Results Among these 94 patients,62 were diagnosed by ultrasound as prolonged abortion and 67 were pathologically confirmed, and therefore the accuracy of ultrasonic diagnosis was 92. 5％ , with 5 cases ( 7. 5％ ) were missed. The ultrasound images of 67 cases were classified into three categories: empty cystic type ( n =31, 46. 3％ ); mixed echoes type ( n = 27 , 40. 3％ ); and mass - like groups surrounding the edge of liquid dark area type ( n = 9, 13. 4％ ) . Five cases with atypical sonographic features must he differentiated from trophoblastic diseases, endometrial polyp, and submucous myoma. Conclusion Prolonged ahortion can be properly diagnosed by two - dimensional ultrasound and color Doppler ultrasonography.%目的 总结过期流产的超声声像图特征,探讨几种常见过期流产超声声像图的鉴别诊断方法.方法 选取94例临床疑诊过期流产的患者,均采用经阴道二维及彩色多普勒超声检查,将超声检查结果与临床病理进行对比分析.总结几种常见过期流产的超声声像图特征.结果 94例临床疑诊过期流产患者中,超声诊断62例,术后病理确诊67例,超声诊断准确率为92.5%,误诊5例(占7.5%).67例过期流产超声图像大概分为3类:Ⅰ类,空囊型31例(46.3%);Ⅱ类,混合回声型27例(40.3%);Ⅲ类,实质样团边缘包绕液暗区型9例(13.4%).其中有5例声像图不典型需与滋养细胞疾病、宫内膜息肉或黏膜下肌瘤相鉴别.结论 通过二维及彩色多普勒超声检查,可对绝大部分过期流产进行准确诊断.
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