Comparing Expert and Trainee Levels of Surgical Technical Skills in Virtual Reality Surgical Simulation - A Case Series Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 50
- 主要终点
- Simulated bipolar force application
研究概览
简要总结
Background:
The use of virtual reality surgical simulators has been explored as a means of providing objective assessments in surgery. The enormous data generated by simulators can provide an objective and novel insight into the technical composites of expertise.
The objective of this work to form a data repository from expert and trainee levels of surgical performance data using the NeuroVR surgical simulation platform with haptic feedback, which will be used to assess face, content and construct validity of the simulated surgical tasks and develop intelligent systems in future studies.
Specific Aims: 1) Construct a data repository including expert and trainee levels of surgical performance data on virtual reality simulation. 2) Outline the face and content validity of the simulated tasks.
Design: 50 participants from a single university were recruited in this consecutive retrospective case series study.
Setting: Neurosurgical Simulation and Artificial Intelligence Learning Centre, McGill University Participants: Neurosurgeons (14), neurosurgical fellows and neurosurgical residents (24) from Montreal Neurological Institute and Hospital along with medical studies (12).
Task: Complete removal of a simulated tumor with minimal bleeding and damage to surrounding healthy brain using two surgical instruments of the NeuroVR (CAE Healthcare) surgical simulator.
Intervention: A single 28-minute simulation session, including 5 practice scenarios (3 minutes per task) and one complex realistic scenario (13 minutes). Pre- and post-questionnaires to obtain participant demographics and assess face and content validity of the simulated tasks.
Main Outcomes and Measures:
Primary outcome are surgical performance metrics recorded during the simulated tasks including.
- Simulated bipolar and simulated ultrasonic aspirator separation distance Mean instrument tip separation distance in mm
- Simulated bipolar force application Mean bipolar force application in Newtons
- Simulated ultrasonic aspirator force application Mean ultrasonic aspirator force application in Newtons
Secondary outcomes include:
1.Rating of face validity of simulation
Questionnaire using 5 point Likert scale will assess face validity
2 Rating of content validity of simulation
Questionnaire using 5 point Likert scale will assess content validity
.
详细描述
Detailed Description:
Background Technological means are being increasingly used in education; however surgical technical skills training is still heavily dependent on expert-trainee relationship. This apprenticeship model faces limitations with the availability of expert surgeons, patient-safety concerns, lack of objectivity, standardization, and quantitation. Surgical interventions carry substantive risks to patients and high costs to health care systems. Consequently, surgical education transforms into more competency-based frameworks by implementing technological means to increase data collection, enable quantification, and objective analysis. Virtual reality simulators have been developed to provide standardized realistic simulated operative environments with the detailed performance data recorded, enabling to explore the composites of technical expertise, and offering new methodologies for surgical training.
Rationale A technically challenging operation in neurosurgery involves the subpial resection of brain tumors adjacent to critical structures. Two simulated tumor resection tasks were developed previously to simulate this procedure using the NeuroVR platform with haptic feedback. The face, content and construct validity of these simulations and methodologies to assess surgical performance in these tasks qualitatively and quantitatively are yet to be explored.
Research Objectives To form a data repository of simulated surgical performance across different expertise levels to allow future studies and to explore face, content and construct validity to develop expert benchmarks and intelligent systems to provide feedback to learners.
Participants do not know about the performance metrics recorded, only that they will be practicing technical skills used in neurosurgery for subpial tumor resection procedures.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
盲法说明
All participants are provided a number and only the principal investigator has access to this information
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Neurosurgeons
- •Neurosurgical fellows
- •Neurosurgical residents
- •Medical students
排除标准
- •Experience with previous similar brain tumor simulation
结局指标
主要结局
Simulated bipolar force application
时间窗: 1 day
Measured in Newtons (range 0-1.5N) values \> 0.5 N poor performance
Simulated ultrasonic aspirator force application
时间窗: 1 day
Measured in Newtons (range 0-1.5N) values \> 0.5 N poor performance
Simulated bipolar and simulated ultrasonic aspirator separation distance
时间窗: 1 day
Measured in millimeters (range 0-30mm) values \> 5mm poor performance
次要结局
未报告次要终点