Implementation of Pulse Inversion Harmonic Imaging on 2d Convex Transducer on Anatomical Information of first-trimester Pregnancy Ultrasound Image

Abstract

This study aims to compare the imaging results of Pulse Inversion Harmonic Imaging (PIHI) on transabdominal ultrasound with convex 2D transducer with and without PIHI on transvaginal ultrasound in providing anatomical information on first-trimester pregnancies. Involving 30 pregnant women meeting inclusion and exclusion criteria, the research was conducted at Swamedika Clinic Jakarta in August 2023. A quasi-experimental method was employed with evaluation performed by ultrasound experts and assessment by a radiologist unaware of PIHI use. The findings indicate that the use of PIHI on transabdominal ultrasound yields clear images of the boundary walls, fetal objects, and yolk sac boundary with appropriate frequency, gain, and depth settings. However, the comparative analysis between images with PIHI on transabdominal and without PIHI on transvaginal did not show significant differences. This study highlights the potential of PIHI in enhancing the quality of ultrasound images in the first trimester of pregnancy, although the results did not significantly differ from transvaginal technique without PIHI.