Role of Transvaginal Sonography (TVS) and Saline Infusion Sonography (SIS) in the evaluation of Abnormal Uterine Bleeding (AUB)

Objective: To determine the accuracy and detecting ability of transvaginal sonography (TVS) and saline infusion sonography (SIS) in the evaluation of intrauterine pathology in patients with Abnormal Uterine Bleeding (AUB) and to compare the diagnostic accuracy after hysterectomy. Methodology: This is a prospective cohort study conducted in the department of Obstetrics and Gynaecology, Coimbatore Medical College Hospital.100 patients being subjected to hysterectomy for AUB were involved. TVS and SIS were done sequentially in every patient prior to hysterectomy. Results: The overall sensitivity and specificity when correlated with the intraoperative hysterectomy findings and HPE were 73.71 % and 95.53 % for TVS and 87.32 % and 97.73 % for SIS. Positive predictive value and Negative predictive value were 72.74 % and 94.61 % for TVS and 87.89 % and 97.60 % for SIS respectively. The false positive and false negative rates were high in TVS than SIS. Conclusion: TVS combined with SIS is a very sensitive and specific technique for diagnosing intrauterine abnormality in cases of AUB. SIS outlines the uterine cavity, detects myoma, polyp or endometrial abnormality missed on TVS.