Comparison of a novel real-time SonixGPS needle-tracking ultrasound technique with traditional ultrasound for vascular access in a phantom gel model

Abstract

Use of the novel SonixGPS needle-tracking ultrasound system (UltraSonix, Richmond, BC, Canada) was not associated with a higher success rate of vascular puncture compared with the traditional ultrasound-guided technique. Assessment of mental task load significantly favored the use of the ultrasound GPS over the traditional ultrasound technique.

SonixGPS – the role of operator experience

“…We studied this system in 30 medical students using a gel phantom model for simulated vascular access . Unlike Tielens et al., we did not find a difference in performance between GPS and non‐GPS modes for in‐plane and out‐of‐plane approaches.…”

Real‐time ultrasound‐guided spinal anesthesia using the SonixGPS ultrasound guidance system: a feasibility study

“…The SonixGPS ® ultrasound guidance system does not necessarily guarantee successful needle placement. In a study of ultrasound-guided vascular access by medical students in a gel phantom model, 15 the success rate of vascular puncture using SonixGPS ® was 91% for the IP approach and 86% for the OOP approach, which while slightly higher, was not significantly different compared with non-SonixGPS ® guidance. Users did however prefer the Ultrasonix system and found it easier to use.…”

Improving needle tip identification during ultrasound-guided procedures in anaesthetic practice

“…A Vancouver‐based research group described different case series using the SonixGPS for spinal punctures , brachial plexus blocks and thoracic paravertebral blocks , first in cadavers and subsequently in patients, without complications. During simulated central venous cannulation, the SonixGPS did not reduce performance time or number of attempts compared with freehand US but it alleviated mental workload . Based on their own observations, this group stated that novices profit most from electromagnetic tracking, particularly during out‐of‐plane approaches .…”