PicSOr - An objective test of perceptual skill that predicts laparoscopic technical skill in three initial studies of laparoscopic performance

摘要: Background: Laparoscopic surgery requires surgeons to infer the shape of 3-D structures, such as internal organs patients, from 2-D displays on a video monitor. Recent evidence indicates that issue is not resolved by use contemporary camera systems. It therefore crucial find ways measuring differences in aptitude for recovering structure images, and assessing its impact performance. Our aim was test empirically relationship between laparoscopic ability perceptual skill information about structures monitor displays. Methods: Participants three studies completed simulated cutting task well Pictorial Surface Orientation (PicSOr)3 Test. In 1 (n = 48) 2 32) both groups were novices, study 3 34) 18 participants experienced surgeons. Findings: All showed PicSOr consistently predicted performance (study 1, r 0.5, p < 0.0003; 2, 0.004; 3, 0.42, 0.017). Furthermore, it also significant predictor surgeons’ (r 0.54, 0.047). Interpretations: This first objective psychometric reliably predict technical skills. provides tool which trainees have potential learn minimal access surgery.