A Novel Device for Training and Evaluating Ultrasound-Guided Procedures In Anesthesia

项目摘要 在过去的十年中，超声用于介入引导的使用已经显著扩展， 成为麻醉、急诊医学和运动医学等临床专业的重要工具。 在介入超声中，存在由同时测量的必要性引入的重大挑战。 用单个B型探头观察目标和针，保持非优势手稳定， 找到惯用手的针的正确轨迹。由此产生的对准问题（探针， 仪器、目标）是与在超声中识别结构不同的技能问题， 训练当前的训练系统不提供合适的信息来帮助新手用户开发关键的训练系统。 手眼协调能力及其保持能力。因此，我们建议设计EDU -包括 Interson超声波，一台带有引导软件的平板电脑，一个带有微型摄像机的CGM光学头， 和CGM定制神经阻滞模型--作为开发针采集关键技能的学习平台， 针放置的准确性，以及了解针到超声平面的方向。使用微型视频 超声波上的摄像机使计算机算法能够计算 有经验的用户执行其中一个区域块和学生的尝试。之间的差异 目标路径允许对技能进行一些量化，这可能有助于向学生提供反馈 也许还可以为继续医学教育课程制定一个基准。本提案的第二个目的是 研究使用针导软件学习是否有利于学生获得技能和/或 信心这项建议将研究一个学期的学生注册护士麻醉师队列 课程讲授五种难度递增的神经阻滞/程序。有了这个新系统， 可以利用指标来证明有指导的学习是否有帮助，即使指导 删除，以及它是否可以导致学生之间的程序更加一致。使用专有定制- 提出了幻影，五个程序的难度等级可以逐步显示，指导是否可以更 帮助在更困难的块或如果它可以帮助在所有。

Project Summary The use of ultrasound for interventional guidance has expanded significantly over the past decade and has become an important tool in clinical specialties such as Anesthesia, Emergency Medicine and Sports Medicine. In interventional ultrasound, there are significant challenges introduced by the necessity of simultaneously visualizing the target and the needle with a single B-mode probe, keeping the nondominant hand steady while finding the correct trajectory of the needle in the dominant hand. The resulting alignment problem (probe, instrument, target) is a different skill problem than identifying structures in ultrasound and requires specialized training. Current training systems do not provide suitable information to aid the novice user in developing key hand-eye coordination skills and their retention. For this reason, we propose to design the EDU –comprised of an Interson ultrasound, a tablet computer with guidance software, a CGM Optical Head with tiny video cameras, and a CGM custom nerve block phantom-- as a learning platform for developing key skills in needle acquisition, accuracy of needle placement, and understanding needle-to-ultrasound-plane orientation. The use of tiny video cameras on the ultrasound enable computer algorithms to compute the trajectory differences between an experienced user performing one of the regional blocks and a student’s attempt. The differences between the paths to the target allow some quantification of the skills, which may be helpful in giving feedback to the student during the semester, and perhaps also to develop a benchmark for CME courses. A second aim of this proposal is to study whether learning with needle-guidance software is beneficial to student skill acquisition and/or confidence. This proposal would study a cohort of student registered nurse anesthetists during a semester course teaching five progressively more difficult nerve blocks/procedures. With this novel system, quantifiable metrics can be harnessed to demonstrate whether learning with guidance is helpful, even when the guidance is removed, and whether it can lead to more consistent procedures across students. Using proprietary custom- made phantoms, the progressive difficulty levels of the five procedures can show whether guidance can be more helpful in more difficult blocs or if it can help in all.