Effect of an Augmented Reality Ultrasound Trainer App on the Motor Skills Needed for a Kidney Ultrasound: Prospective Trial

Florian Ebner; Amelie De Gregorio; Fabienne Schochter; Inga Bekes; Wolfgang Janni; Krisztian Lato

doi:10.2196/12713

Effect of an Augmented Reality Ultrasound Trainer App on the Motor Skills Needed for a Kidney Ultrasound: Prospective Trial

JMIR Serious Games. 2019 May 1;7(2):e12713. doi: 10.2196/12713.

Authors

Florian Ebner^{1

2}, Amelie De Gregorio³, Fabienne Schochter³, Inga Bekes³, Wolfgang Janni³, Krisztian Lato³

Affiliations

¹ Helios Amper Klinikum, Dachau, Germany.
² University of Ulm, Ulm, Germany.
³ Obstetrics and Gynecology Department, University of Ulm, Ulm, Germany.

PMID: 31042155
PMCID: PMC6658324
DOI: 10.2196/12713

Abstract

Background: Medical education is evolving from "learning by doing" to simulation-based hands-on tutorials.

Objective: The aim of this prospective 2-armed study was to evaluate a newly developed augmented reality ultrasound app and its effect on educational training and diagnostic accuracy.

Methods: We recruited 66 medical students and, using imaging and measuring a kidney as quality indicators, tested them on the time they needed for these tasks. Both groups used textbooks as preparation; in addition, the study group had access to a virtual ultrasound simulation app for mobile devices.

Results: There was no significant difference between the study arms regarding age (P=.97), sex (P=.14), and previous ultrasound experience (P=.66). The time needed to complete the kidney measurements also did not differ significantly (P=.26). However, the results of the longitudinal kidney measurements differed significantly between the study and control groups, with larger, more realistic values in the study group (right kidney: study group median 105.3 mm, range 86.1-127.1 mm, control group median 92 mm, range 50.4-112.2 mm; P<.001; left kidney: study group median 100.3 mm, range 81.7-118.6 mm, control group median 85.3 mm, range 48.3-113.4 mm; P<.001). Furthermore, whereas all students of the study group obtained valid measurements, students of the control group did not obtain valid measurements of 1 or both kidneys in 7 cases.

Conclusions: The newly developed augmented reality ultrasound simulator mobile app provides a useful add-on for ultrasound education and training. Our results indicate that medical students' use of the mobile app for training purposes improved the quality of kidney measurements.

Keywords: augmented reality; education; kidney; mobile apps; mobile device; sensitivity and specificity; simulation training; telemedicine; ultrasonography; ultrasound trainer.

©Florian Ebner, Amelie De Gregorio, Fabienne Schochter, Inga Bekes, Wolfgang Janni, Krisztian Lato. Originally published in JMIR Serious Games (http://games.jmir.org), 01.05.2019.