%0 Journal Article
%T Use of a photoacoustic needle improves needle tip recognition in a video recording of simulated ultrasound-guided vascular access: A pilot study.
%A Nakazawa H
%A Tokumine J
%A Lefor AK
%A Yamamoto K
%A Karasawa H
%A Shimazu K
%A Yorozu T
%J J Vasc Access
%V 25
%N 3
%D May 2024 15
%M 36519739
%F 2.326
%R 10.1177/11297298221122137
%X <B>UNASSIGNED: </B>We developed a novel photoacoustic needle, which emits ultrasound produced by the photoacoustic effect. This study focused on the most common "pitfall" associated with placement during ultrasound-guided vascular access, which is misidentification of the needle tip.<BR><B>UNASSIGNED: </B>The study was conducted as a prospective cohort study using a questionnaire. The authors intentionally created two successful and one failed ultrasound-guided central venous catheterization videos using the photoacoustic needle on a simulator. Each of these three videos was then split into two movies for viewing, one with standard ultrasound images only and the second including the images from the photoacoustic needle, for a total of six movies.<BR><B>UNASSIGNED: </B>Participants who were 18 anesthesiologists, 12 residents, and 10 medical students, watched each of the six movies and completed a survey whether the puncture was successful or not. In the results, there was a significant difference in the percentage of correct answers whether the movie depicted successful or failed puncture with and without the photoacoustic ultrasound (p = 0.0001).<BR><B>UNASSIGNED: </B>The novel photoacoustic needle improved the ability to identify the needle tip on recorded videos. It may have efficacy to prevent serious mechanical complication during the ultrasound-guided vascular access in clinical practice.