Positive correlation between motion analysis data on the LapMentor virtual reality laparoscopic surgical simulator and the results from videotape assessment of real laparoscopic surgeries.
Positive correlation between motion analysis data on the LapMentor virtual reality laparoscopic surgical simulator and the results from videotape assessment of real laparoscopic surgeries.
复制标题
LapMentor 虚拟现实腹腔镜手术模拟器的运动分析数据与真实腹腔镜手术录像评估结果呈正相关。
DOI：
10.1089/end.2012.0183
复制
发表时间：
2008
影响因子：
2.7
通讯作者：
R. Clayman
中科院分区：
文献类型：
--
作者：
T. Matsuda;E. McDougall;Y. Ono;R. Hattori;S. Baba;M. Iwamura;T. Terachi;S. Naito;R. Clayman
目的
我们研究了虚拟现实腹腔镜手术模拟器LapMentor的结构效度，以及LapMentor上收集的数据与真实的腹腔镜手术视频评估结果之间的相关性。
材料和方法
在LapMentor上对92名泌尿科医生进行了3号（SK 3）至8号（SK 8）基本技能任务的测试。将他们分为三组：A组（n=25）没有作为主刀医生进行腹腔镜手术的经验; B组（n=33）有<35次经验; C组（n=34）有≥35次经验。组得分的准确性，有效性和时间的任务进行了比较。40名有≥20次经验的医生提供了未经编辑的录像带，显示了腹腔镜肾切除术或肾上腺切除术的全部内容，并由专家裁判以盲态方式对录像进行了评估。分析录像带评分（VS）与在LapMentor上的表现之间的相关性。
结果
C组在LapMentor性能的准确性（SK 5）（P=0.013）、有效性（SK 8）（P=0.014）或速度（SK 3和8）（分别为P=0.009和P=0.002）方面的结局显著优于A组。B组在SK 8中的执行速度和有效性方面的结局显著优于A组（分别为P=0.011和P=0.029）。对LapMentor运动分析数据的分析表明，器械的平稳和理想运动比器械运动的速度更重要，以实现在每个任务中的准确性能。多元线性回归分析显示，SK 4、5、8的准确性平均分与VS呈显著正相关（P=0.01）。
结论
本研究证明了LapMentor基本技能任务的结构和预测有效性，支持其可能用于腹腔镜技能的临床前评价。
PURPOSE
We studied the construct validity of the LapMentor, a virtual reality laparoscopic surgical simulator, and the correlation between the data collected on the LapMentor and the results of video assessment of real laparoscopic surgeries.
MATERIALS AND METHODS
Ninety-two urologists were tested on basic skill tasks No. 3 (SK3) to No. 8 (SK8) on the LapMentor. They were divided into three groups: Group A (n=25) had no experience with laparoscopic surgeries as a chief surgeon; group B (n=33) had <35 experiences; and group C (n=34) had ≥35 experiences. Group scores on the accuracy, efficacy, and time of the tasks were compared. Forty physicians with ≥20 experiences supplied unedited videotapes showing a laparoscopic nephrectomy or an adrenalectomy in its entirety, and the videos were assessed in a blinded fashion by expert referees. Correlations between the videotape score (VS) and the performances on the LapMentor were analyzed.
RESULTS
Group C showed significantly better outcomes than group A in the accuracy (SK5) (P=0.013), efficacy (SK8) (P=0.014), or speed (SKs 3 and 8) (P=0.009 and P=0.002, respectively) of the performances of LapMentor. Group B showed significantly better outcomes than group A in the speed and efficacy of the performances in SK8 (P=0.011 and P=0.029, respectively). Analyses of motion analysis data of LapMentor demonstrated that smooth and ideal movement of instruments is more important than speed of the movement of instruments to achieve accurate performances in each task. Multiple linear regression analysis indicated that the average score of the accuracy in SK4, 5, and 8 had significant positive correlation with VS (P=0.01).
CONCLUSIONS
This study demonstrated the construct and predictive validity of the LapMentor basic skill tasks, supporting their possible usefulness for the preclinical evaluation of laparoscopic skills.