POSITIVE PREDICTIVE VALUE OF SONOHYSTEROGRAPHY FOR ASSESSMENT OF TUBAL PATENCY IN INFERTILITY AT A TERTIARY CARE HOSPITAL WHILE TAKING HYSTEROSALPINGOGRAM AS GOLD STANDARD

Abstract

Background: Infertility often results from tubal blockage. Although hysterosalpingography (HSG) is standard for assessing tubal patency, it has discomfort and radiation risks. Sonohysterography (SIS) offers a safer alternative, but conflicting results prompted this study to evaluate its diagnostic accuracy against HSG.

Objectives:  To determine the positive predictive value of SIS in diagnosing tubal patency assessment in infertility taking HSG findings as gold standard.

Duration: Three months w.e.f. 11-04-2025 to 10-07-2025

Methodology: After approval from the ethical review committee, seventy-three infertile women fulfilling the inclusion criteria were enrolled after obtaining informed consent. Tubal patency was first assessed by SIS and re-evaluated after fifteen days using HSG. All procedures followed standard protocols, and data were analyzed through SPSS version 26.0. 

Results: This study analyzed 73 participants to evaluate Saline Infusion Sonography (SIS). The cohort had a mean age of 30.86 years and a mean infertility duration of 4.47 years. SIS demonstrated a high overall positive predictive value (PPV) of 90.4% for tubal patency. This PPV remained consistently high (range: 89.7-90.6%) across different age groups and infertility durations, with no statistically significant variations (p=1.000). 

Conclusion: Saline Infusion Sonography proved to be a highly reliable tool for assessing tubal patency, demonstrating a 90.4% positive predictive value. This diagnostic accuracy remained consistently high across different patient ages and durations of infertility, which established its broad clinical applicability for this purpose.