M J Bradley1. 1. Department of Clinical Radiology, Southmead Hospital, Bristol, Westbury-on-Trym, BS10 5NB, U.K.
Abstract
AIMS: To describe the optimum conditions for successful free-hand ultrasound guided intervention using an in-vitro experiment. MATERIALS AND METHODS: Optimal free-hand biopsy conditions were determined using targets buried in a purpose-built interventional phantom. The needle/probe distance and probe/phantom surface angle were changed whilst recording the needle track lengths and needle conspicuity. RESULTS: Optimal free-hand conditions included a needle/probe distance of 2-3 cm in combination with a needle/probe angle 55-60 degrees. This enabled excellent needle conspicuity with short needle track length and early needle tip visualization. CONCLUSION: Understanding how to optimize the free-hand conditions will help the interventionalist to obtain greater performance using a variety of puncture devices. This concept is likely to be particularly important to the novice interventionalist as well as to those teaching the free-hand technique.
AIMS: To describe the optimum conditions for successful free-hand ultrasound guided intervention using an in-vitro experiment. MATERIALS AND METHODS: Optimal free-hand biopsy conditions were determined using targets buried in a purpose-built interventional phantom. The needle/probe distance and probe/phantom surface angle were changed whilst recording the needle track lengths and needle conspicuity. RESULTS: Optimal free-hand conditions included a needle/probe distance of 2-3 cm in combination with a needle/probe angle 55-60 degrees. This enabled excellent needle conspicuity with short needle track length and early needle tip visualization. CONCLUSION: Understanding how to optimize the free-hand conditions will help the interventionalist to obtain greater performance using a variety of puncture devices. This concept is likely to be particularly important to the novice interventionalist as well as to those teaching the free-hand technique.
Authors: Massimo De Filippo; Sara Puglisi; Fabiano D'Amuri; Francesco Gentili; Ilaria Paladini; Gianpaolo Carrafiello; Umberto Maestroni; Paolo Del Rio; Francesco Ziglioli; Francesco Pagnini Journal: Radiol Med Date: 2021-08-20 Impact factor: 3.469