Comparison of three-dimensional hysterosalpingo-contrast-sonography and diagnostic laparoscopy with chromopertubation in the assessment of tubal patency for the investigation of subfertility.

Two-dimensional hysterosalpingo-contrast-sonography, as a screening test for tubal patency for subfertile patients, is limited by the difficulty in visualizing the entire Fallopian tube owing to its tortuosity. This major disadvantage can be overcome by means of the three-dimensional hysterosalpingo-contrast-sonography (3D-HyCoSy). The current study compared the efficacy of 3D-HyCoSy with diagnostic laparoscopy and its feasibility as a screening test for tubal patency.