Fun with electricity: A novel ballistics gelatin model with LED tracking for ultrasound needle guidance

IF 1.7 Q2 EDUCATION, SCIENTIFIC DISCIPLINES
Elizabeth R. Wallace MS, Mathew J. Gregoski PhD, Aalap Shah MD
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引用次数: 0

Abstract

Background

Use of ultrasound (US) for procedural needle guidance can improve success rates, safety, and accuracy. Often, training is performed on task trainers, which can be prohibitively expensive. Determining undesired needle placement is difficult when the needle is poorly visualized with US. Currently available simulation phantoms cannot provide real-time feedback on the location of needle placement.

Objectives

The primary objective was to develop and determine feasibility of a low-cost simulation phantom with an internal circuit and LED light system to determine when a needle contacts internal structures. We also aimed to determine whether its use was associated with increased comfort level.

Methods

Emergency medicine (EM) residents (PGY-1 to PGY-3) performed in-plane and out-of-plane US needle guidance using homemade phantoms. Comfort levels were assessed by pre- and post intervention survey. Outcomes were measured on Likert scale (minimum = 1, maximum = 5). The primary outcome was change in confidence markers before and after the simulation task. Secondary outcomes were survey results of comparisons of these models to prior training experiences on simulators and humans.

Results

All EM residents (30) in our program were invited to participate. Twenty participants enrolled and completed the study. In the primary outcome, median comfort with out-of-plane and in-plane guidance increased after using the model but was more pronounced for out-of-plane guidance. On a posttest survey, residents rated the models overall very similar to prior experience on simulators (median 5/5 [IQR 4.0–5.0]) and moderately similar to humans (median 3/5 [IQR 3.0–4.0]).

Conclusions

We created a low-cost ballistic gelatin phantom with an internal electric needle guidance system. Use of the phantom for training was associated with increased learner comfort with the procedure. Learners rated the characteristics of the phantom as similar to higher-cost commercial equipment and humans.

电的乐趣带 LED 跟踪功能的新型弹道明胶模型,用于超声针引导
背景 使用超声波(US)进行手术针引导可提高成功率、安全性和准确性。通常情况下,培训是在任务训练器上进行的,而任务训练器的价格可能过于昂贵。如果 US 对针头的可视性较差,则很难确定不想要的针头位置。目前可用的模拟模型无法实时反馈进针位置。 目标 我们的主要目标是开发一种带有内部电路和 LED 灯光系统的低成本模拟模型,并确定其可行性,以确定针何时接触内部结构。我们还希望确定使用该系统是否会提高舒适度。 方法 急诊医学(EM)住院医师(PGY-1 至 PGY-3)使用自制模型进行平面内和平面外 US 针引导。通过干预前后的调查评估舒适度。结果采用李克特量表进行测量(最小 = 1,最大 = 5)。主要结果是模拟任务前后信心标记的变化。次要结果是将这些模型与之前在模拟器和人体上的培训经验进行比较的调查结果。 结果 我们项目的所有电磁学住院医师(30 人)都应邀参加了研究。有 20 人报名并完成了研究。在主要结果中,平面外和平面内引导的舒适度中位数在使用模型后有所提高,但平面外引导的舒适度更明显。在测试后的调查中,住院医生对模型的总体评价与之前在模拟器上的体验非常相似(中位数为 5/5 [IQR为 4.0-5.0]),与人类的评价基本相似(中位数为 3/5 [IQR为 3.0-4.0])。 结论 我们制作了一个带有内部电针引导系统的低成本弹道明胶模型。使用该模型进行培训可提高学员对手术的舒适度。学员评价该模型的特性与成本较高的商业设备和人体相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
AEM Education and Training
AEM Education and Training Nursing-Emergency Nursing
CiteScore
2.60
自引率
22.20%
发文量
89
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