scholarly journals HoloPointer: a virtual augmented reality pointer for laparoscopic surgery training

2020 ◽  
Author(s):  
Florian Heinrich ◽  
Florentine Huettl ◽  
Gerd Schmidt ◽  
Markus Paschold ◽  
Werner Kneist ◽  
...  
Keyword(s):  
Laparoscopic Surgery ◽  
Augmented Reality ◽  
Performance Metrics ◽  
Standard Condition ◽  
Error Rates ◽  
Task Completion ◽  
Training Simulator ◽  
Surgery Training ◽  
Surgical Trainees ◽  
Economy Of Movement

Abstract Purpose In laparoscopic surgery training, experts guide novice physicians to desired instrument positions or indicate relevant areas of interest. These instructions are usually given via verbal communication or using physical pointing devices. To facilitate a sterile work flow and to improve training, new guiding methods are needed. This work proposes to use optical see-through augmented reality to visualize an interactive virtual pointer on the laparoscopic. Methods After an interdisciplinary development, the pointer’s applicability and feasibility for training was evaluated and it was compared to a standard condition based on verbal and gestural communication only. In this study, ten surgical trainees were guided by an experienced trainer during cholecystectomies on a laparoscopic training simulator. All trainees completed a virtual cholecystectomy with and without the interactive virtual pointer in alternating order. Measures included procedure time, economy of movement and error rates. Results Results of standardized variables revealed significantly improved economy of movement (p = 0.047) and error rates (p = 0.047), as well as an overall improved user performance (Total z-score; p = 0.031) in conditions using the proposed method. Conclusion The proposed HoloPointer is a feasible and applicable tool for laparoscopic surgery training. It improved objective performance metrics without prolongation of the task completion time in this pre-clinical setup.

scholarly journals Functional MRI-compatible laparoscopic surgery training simulator

2010 ◽  
Vol 65 (3) ◽  
pp. 873-881 ◽  
Author(s):  
Parisa Bahrami ◽  
Tom A. Schweizer ◽  
Fred Tam ◽  
Teodor P. Grantcharov ◽  
Michael D. Cusimano ◽  
...  
Keyword(s):  
Laparoscopic Surgery ◽  
Functional Mri ◽  
Training Simulator ◽  
Surgery Training

scholarly journals Validation of NOViSE

2016 ◽  
Vol 24 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Przemyslaw Korzeniowski ◽  
Daniel C. Brown ◽  
Mikael H. Sodergren ◽  
Alastair Barrow ◽  
Fernando Bello
Keyword(s):  
Construct Validity ◽  
Content Validity ◽  
Force Feedback ◽  
Performance Metrics ◽  
Face Validity ◽  
Task Completion ◽  
Training Tool ◽  
Surgical Trainees ◽  
Applied Forces ◽  
Strongly Agree

The goal of this study was to establish face, content, and construct validity of NOViSE—the first force-feedback enabled virtual reality (VR) simulator for natural orifice transluminal endoscopic surgery (NOTES). Fourteen surgeons and surgical trainees performed 3 simulated hybrid transgastric cholecystectomies using a flexible endoscope on NOViSE. Four of them were classified as “NOTES experts” who had independently performed 10 or more simulated or human NOTES procedures. Seven participants were classified as “Novices” and 3 as “Gastroenterologists” with no or minimal NOTES experience. A standardized 5-point Likert-type scale questionnaire was administered to assess the face and content validity. NOViSE showed good overall face and content validity. In 14 out of 15 statements pertaining to face validity (graphical appearance, endoscope and tissue behavior, overall realism), ≥50% of responses were “agree” or “strongly agree.” In terms of content validity, 85.7% of participants agreed or strongly agreed that NOViSE is a useful training tool for NOTES and 71.4% that they would recommend it to others. Construct validity was established by comparing a number of performance metrics such as task completion times, path lengths, applied forces, and so on. NOViSE demonstrated early signs of construct validity. Experts were faster and used a shorter endoscopic path length than novices in all but one task. The results indicate that NOViSE authentically recreates a transgastric hybrid cholecystectomy and sets promising foundations for the further development of a VR training curriculum for NOTES without compromising patient safety or requiring expensive animal facilities.

scholarly journals 845 Flattening the Learning Curve: The Evaluation of Extended Laparoscopic Simulation Training for Novice Surgeons

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
S A Joiya ◽  
M Hamid ◽  
Z Siddiqui
Keyword(s):  
Learning Curve ◽  
Skill Acquisition ◽  
Postoperative Recovery ◽  
Task Completion ◽  
Complication Rates ◽  
Novice Group ◽  
Surgical Trainees ◽  
Long Duration ◽  
Hospital Stays ◽  
Novice Surgeons

Abstract Introduction Associated with faster postoperative recovery, reduced length of hospital stays and scarring; laparoscopy has become the favoured approach for many surgical procedures across a range of specialties. However, due to its challenging learning curve, it has also been associated with increased theatre time and higher complication rates. Method A prospective, observational study with box trainers was carried out by novice medical students and trainees to evaluate the efficacy of long duration courses on skill acquisition. The novice group undertook a 5-week curriculum composed of lectures, demonstrations and spaced timed-assessments involving 3 tasks: hoop placement, stacking of sugar cubes and surgical cutting. Results Time taken for novice participants to complete a task individually and collectively improved markedly from the first to the third attempt, with an overall 44% reduction in time observed over the 5-weeks. We invited back 6 novice participants and 6 core surgical trainees after 4-weeks to complete the same tests. There was a further 18% time improvement in the novice group, with 44% faster task completion. Conclusions Given the success of this study and other simulation courses reported in the literature, we recommend more courses adopt a spaced-out approach; and a simulation curriculum for surgical trainees to cultivate greater skill acquisition.

Augmented Reality Procedure Assistance System for Operator Training and Simulation

2020 ◽  
Vol 64 (1) ◽  
pp. 1176-1180
Author(s):  
Eugene Hayden ◽  
Kang Wang ◽  
Chengjie Wu ◽  
Shi Cao
Keyword(s):  
Augmented Reality ◽  
Situation Awareness ◽  
Mental Workload ◽  
Field Of View ◽  
Task Completion ◽  
Operator Training ◽  
Head Mounted Display ◽  
Subject Design ◽  
Procedural Tasks ◽  
Speed Accuracy

This study explores the design, implementation, and evaluation of an Augmented Reality (AR) prototype that assists novice operators in performing procedural tasks in simulator environments. The prototype uses an optical see-through head-mounted display (OST HMD) in conjunction with a simulator display to supplement sequences of interactive visual and attention-guiding cues to the operator’s field of view. We used a 2x2 within-subject design to test two conditions: with/without AR-cues, each condition had a voice assistant and two procedural tasks (preflight and landing). An experiment examined twenty-six novice operators. The results demonstrated that augmented reality had benefits in terms of improved situation awareness and accuracy, however, it yielded longer task completion time by creating a speed-accuracy trade-off effect in favour of accuracy. No significant effect on mental workload is found. The results suggest that augmented reality systems have the potential to be used by a wider audience of operators.

Stereoscopic augmented reality for laparoscopic surgery

2014 ◽  
Vol 28 (7) ◽  
pp. 2227-2235 ◽  
Author(s):  
Xin Kang ◽  
Mahdi Azizian ◽  
Emmanuel Wilson ◽  
Kyle Wu ◽  
Aaron D. Martin ◽  
...  
Keyword(s):  
Laparoscopic Surgery ◽  
Augmented Reality

scholarly journals Experience of augmented reality in retroperitoneal laparoscopic surgery in show Chwan Memorial Hospital

2015 ◽  
Vol 26 (4) ◽  
pp. 295-296
Author(s):  
Jungle Chi-Hsiang Wu ◽  
Yuan-Tien Ting ◽  
Ren-Wei Tzeng ◽  
Mao-Sheng Lin ◽  
Chien-Hsiang Wang
Keyword(s):  
Laparoscopic Surgery ◽  
Augmented Reality ◽  
Memorial Hospital

scholarly journals A System to Support Laparoscopic Surgery by Augmented Reality Visualization

2001 ◽  
pp. 691-698 ◽  
Author(s):  
Stijn De Buck ◽  
Johan Van Cleynenbreugel ◽  
Indra Geys ◽  
Thomas Koninckx ◽  
Philippe R. Koninck ◽  
...  
Keyword(s):  
Laparoscopic Surgery ◽  
Augmented Reality

Different System Error Rates in Augmented Reality Interface Affected Cognitive Stress

2021 ◽  
Vol 65 (1) ◽  
pp. 1087-1088
Author(s):  
Kiana Kia ◽  
Jaejin Hwang ◽  
Hakim Ishak ◽  
James Wilson ◽  
In-Sop Kim ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Error Rates ◽  
System Error ◽  
Cognitive Stress

Augmented Reality and the Future of Virtual Workspaces

2011 ◽  
pp. 682-698
Author(s):  
James K. Ford ◽  
Tobias Höllerer
Keyword(s):  
Augmented Reality ◽  
Computer Science ◽  
Education And Training ◽  
Decision Makers ◽  
Task Completion ◽  
Future Trends ◽  
Collaborative Task ◽  
The Future ◽  
And Training

Until recently, Augmented Reality (AR) technology has rarely been discussed outside of the computer science world. It has taken years for this technology to become closer to a stable existence, and will most likely take several more years before it will be used by average citizens. However, the technology does exist, it has been applied in several areas, and research is being done to create even more stable systems that are adaptable to various environments. For this reason, it is necessary for decision-makers in establishments where education and training, knowledge distribution, and individual and collaborative task completion are essential to be aware of this technology, its abilities, and the possible impacts to common workspaces and workers. The purpose of this chapter is to inform decision-makers of AR’s history, the completed research and current applications of AR, possible impacts to managers and workers, and the future trends of the technology.

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