全科医学实习生超声波探头运动经济性的变化。

IF 3.4 Q2 Medicine Ultrasound Journal Pub Date : 2024-01-30 DOI:10.1186/s13089-023-00345-2
Gerard Salame, Matthew Holden, Brian P Lucas, Albert Portillo
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引用次数: 0

摘要

目的在为期 5 天的心脏护理点超声(POCUS)培训课程中,观察内科受训人员在 9 个超声探头移动指标方面的经济性变化:我们使用一种新型探头跟踪装置记录超声探头运动的九个特征,同时学员和专家对同一志愿患者进行超声片段优化。这些特征包括平移运动、陀螺运动(倾斜、摇摆和旋转)、平滑度、总路径长度和扫描时间。我们确定了每位受训者的动作与专家对每位患者的动作平均值之间的调整后差异。然后,我们使用混合效应模型对学员和专家在 5 天课程中的调整后差异进行趋势平均:15名学员参加了培训。三名超声心动图技师和课程主任担任专家。共为 16 名患者采集了 294 个超声片段。在所有 9 个动作中,学员与专家之间的调整后差异逐日缩小(P 值 结论):在为期 5 天的心脏 POCUS 培训课程中,我们使用廉价的探头跟踪装置检测到内科学员的超声探头运动经济性有所提高。客观量化探头运动经济性有助于评估学员对这项技能的熟练程度,并对他们进行个性化的 POCUS 培训。
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Change in economy of ultrasound probe motion among general medicine trainees.

Objectives: To observe change in economy of 9 ultrasound probe movement metrics among internal medicine trainees during a 5-day training course in cardiac point of care ultrasound (POCUS).

Methods: We used a novel probe tracking device to record nine features of ultrasound probe movement, while trainees and experts optimized ultrasound clips on the same volunteer patients. These features included translational movements, gyroscopic movements (titling, rocking, and rotation), smoothness, total path length, and scanning time. We determined the adjusted difference between each trainee's movements and the mean value of the experts' movements for each patient. We then used a mixed effects model to trend average the adjusted differences between trainees and experts throughout the 5 days of the course.

Results: Fifteen trainees were enrolled. Three echocardiographer technicians and the course director served as experts. Across 16 unique patients, 294 ultrasound clips were acquired. For all 9 movements, the adjusted difference between trainees and experts narrowed day-to-day (p value < 0.05), suggesting ongoing improvement during training. By the last day of the course, there were no statistically significant differences between trainees and experts in translational movement, gyroscopic movement, smoothness, or total path length; yet on average trainees took 28 s (95% CI [14.7-40.3] seconds) more to acquire a clip.

Conclusions: We detected improved ultrasound probe motion economy among internal medicine trainees during a 5-day training course in cardiac POCUS using an inexpensive probe tracking device. Objectively quantifying probe motion economy may help assess a trainee's level of proficiency in this skill and individualize their POCUS training.

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来源期刊
Ultrasound Journal
Ultrasound Journal Health Professions-Radiological and Ultrasound Technology
CiteScore
6.80
自引率
2.90%
发文量
45
审稿时长
22 weeks
期刊最新文献
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