Image inversion and digital mirror-image technology aid laparoscopic surgery task performance in the paradoxical view: a randomized controlled trial

Kang

et al. 2020

J Minim Invasive Surg

Purpose: Hand-eye discordance during laparoscopic colon surgery is an obstacle to the assistant. We evaluated the usefulness of a 180° rotatable laparoscopic monitor for the colorectal surgery assistant to overcome hand-eye discordance. Methods: Twenty-six residents of the department of surgery (novice group, n=13; experienced group, n=13) participated in this study. They performed grasping a ring and transferring it to standing bars on a laparoscopic training kit under the conventional view and a 180° rotated monitor view. We defined successful performance when this procedure was completed in 3 minutes. Results: The number of successful performance was higher under the 180° rotated monitor view than under the conventional view monitor (6.88±2.79 vs. 0.92±0.80, p<0.01). Under the 180° rotated monitor view, the experienced group had a higher number of successful performances than the novice group (8.31±2.59 vs. 5.46±2.26, p=0.009). However, no statistically significant difference was found between the two groups under the conventional view (1.23±0.93 vs. 0.62±0.51, p=0.091). Conclusion: This study shows the usefulness of a 180° rotated monitor view to overcome hand-eye discordance, which adversely affects the laparoscopic performance of the colorectal surgery assistant.

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Usefulness of a 180° Rotatable Monitor for an Assistant to Overcome the Hand-Eye Discordance in Laparoscopic Colorectal Surgery

Kang

et al. 2020

J Minim Invasive Surg

“…The comparison of other methods such as VR trainers with the BTs showed that differences were present in some of the measured outcomes. Nevertheless, these results were based on small randomized controlled trials and no specific conclusions could be drawn in the case of novice trainees .…”

Section: Hands‐on Training In Laparoscopy‐box Trainersmentioning

confidence: 99%

Training in minimally invasive surgery in urology: European Association of Urology/International Consultation of Urological Diseases consultation

et al. 2015

ObjectivesTo describe the progress being made in training for minimally invasive surgery (MIS) in urology. MethodsA group of experts in the field provided input to agree on recommendations for MIS training. A literature search was carried out to identify studies on MIS training, both in general and specifically for urological procedures. ResultsThe literature search showed the rapidly developing options for e-learning, box and virtual training, and suggested that box training is a relatively cheap and effective means of improving laparoscopic skills. Development of non-technical skills is an integral part of surgical skills training and should be included in training curricula. The application of modular training in surgical procedures showed more rapid skills acquisition. Training curricula for MIS in urology are being developed in both the USA and Europe. ConclusionTraining in MIS has shifted from 'see-one-do-one-teach-one' to a structured learning, from e-learning to skills laboratory and modular training settings.

“…Several studies have suggested that rotating the view on the monitor for the assistant by 180 degrees (left-right reversed and upside-down image) with the image converter improves task performance with mirror images 9–12 . However, most facilities do not have an image converter, which is an expensive piece of equipment.…”

Section: Introductionmentioning

confidence: 99%

Optimal monitor positioning and camera rotation angle for mirror image: overcoming reverse alignment during laparoscopic colorectal surgery

Miura

Oshikiri

Miura

et al. 2019

Sci Rep

Mirror image is one of the most difficult situations that the assistant surgeon encounters in laparoscopic colorectal surgery. The aim of the present study was to investigate whether task performance with mirror images improves by changing the position of the monitor and the rotation angle of the camera. Twenty-four surgeons performed the task under different conditions: Coaxial image (C), Mirror image (M), Mirror image + Monitor on the left side of participants (M + Mon), Mirror image + Camera rotated 90 degrees to the right (M + Cam), and Mirror image + Monitor on the left side + Camera rotated to the right (M + Mon + Cam) in a training box. The outcome measure was the mean time for completing the task. The mean time for completing the task, in decreasing order, was M (111.4 ± 58.9 seconds) > M + Mon (70.5 ± 29.4 seconds) > M + Cam (47.1 ± 17.1 seconds) > M + Mon + Cam (33.4 ± 10.3 seconds) > C (20.5 ± 3.5 seconds). (multivariable analysis of variance (MANOVA), p = 7.9 × 10 −7 ) Task performance with mirror images improved by changing the monitor positioning and camera rotation angle. This novel method is a simple way to overcome mirror image in laparoscopic colorectal surgery.