A 3-D-PRINTED PATIENT-SPECIFIC ULTRASOUND PHANTOM FOR FAST SCAN

Ultrasound phantoms are commonly used to assess the performance of ultrasound systems and ensure their proper functionality, in addition to providing opportunities for medical training. However, Focused Assessment with Sonography for Trauma (FAST) phantoms, in particular, are prohibitively expensive and procedure specific. This work explores the use of additive manufacturing to fabricate a patient-specific, full-scale torso ultrasound phantom. Phantom geometry was derived from anonymized computed tomography scans and segments into discrete organs. The digital organs (torso, skeleton, liver, spleen) were 3-D printed and used as cast able molds for producing their respective body features. These organs were integrated with artificial hemorrhages to produce a realistic training tool for FAST scans. The resulting phantom is low in cost, has a verified shelf-life of at least 1 y and was positively reviewed by a trauma and emergency radiologist for its ability to provide accurate geometric and ultrasound information. (E-mail: lalzogb1@jh.edu) (C) 2020 World Federation for Ultrasound in Medicine & Biology. All rights reserved.

Automated summary

This study explores the use of additive manufacturing to fabricate a patient-specific, full-scale torso ultrasound phantom as an alternative to expensive and procedure-specific FAST phantoms. The resulting phantom is cost-effective, has a long shelf life, and has been positively reviewed by professionals for its ability to provide accurate geometric and ultrasound information.