IMAGE FEATURES AND ANALYSIS OF MISDIAGNOSIS OF ENDOMETRIAL POLYP THROUGH THREE- DIMENTIONAL TRANSVAGINAL ULTRASOUND INSPECTION

Objective To study the image characteristics of endometrial polyp by three- dimensional vaginal ultrasound and to investigate the causes of missed diagnosis in order to improve the diagnostic reliability. Methods The three-dimensional transvaginal ultrasound image characteristics of 51 endometrial polyp cases confirmed by pathology and hysteroscopy surgery during June 2012 and December 2013 were retrospectively analyzed. Results In 51 cases of endometrial polyp,47 were diagnosed by three- dimensional transvaginal ultrasound with the detection rate of 92. 16%;4 were missed diagnosis with the rate of 7. 84%,in which 2 were due to adhesion of abdominal wall and uterus bottom after cesarean section,1 due to uterus increases and multiple uterine fibroids,and the last one due to adenomyosis of uterus and uterine fibroids. Conclusion Three- dimensional transvaginal ultrasound presents characteristic images in the diagnosis of endometrial polyp and better spatial resolution ratio compared to two- dimensional transvaginal ultrasound. The reason of misdiagnosis is the obscure quality of two- dimensional image. Therefore when two- dimensional image quality is poor due to various reasons,hysteroscopy should be performed to avoid missed diagnosis.