Comparison of Ultrasound Image Quality Between Users on a Novel Automated Device for Extremity Injury

Area of Science:

• Medical Imaging
• Orthopedics
• Emergency Medicine

Background:

• Plain radiography is standard for extremity injuries but limited in detecting subtle fractures and visualizing soft tissues.
• Ultrasound offers diagnostic advantages but traditionally demands significant operator expertise.

Purpose of the Study:

• To assess image quality and patient comfort of a novel automated volumetric ultrasound system (Accuro XV).
• To compare scans acquired by clinical research assistants (CRAs) with those by board-certified emergency physicians.

Main Methods:

• A prospective, multi-site study involving 205 patients (≥5 years) with acute ankle or wrist trauma.
• Patients underwent both X-ray and Accuro XV imaging; pain was assessed via Numerical Rating Scale.
• Blinded image quality analysis of 50 CRA-acquired and 50 physician-acquired studies.

Main Results:

• No significant difference in image quality between CRA and physician groups (mean scores 3.6 vs. 3.7; p=0.24).
• Over 90% of studies were rated diagnostically adequate, with moderate interrater reliability.
• Both groups reported minimal discomfort, with a median pain increase of 0.

Conclusions:

• The Accuro XV system enables high-quality extremity ultrasound imaging, even with nonphysician operators.
• The technology shows promise for broader implementation in acute care settings by minimally trained personnel.
• Further research is needed to confirm diagnostic accuracy and clinical impact.