scholarly journals Gender benefit in laparoscopic surgical performance using a 3D-display system: data from a randomized cross-over trial

2021 ◽  
Author(s):  
Jana Busshoff ◽  
Rabi R. Datta ◽  
Thomas Bruns ◽  
Robert Kleinert ◽  
Bernd Morgenstern ◽  
...  
Keyword(s):  
Medical Students ◽  
Vision System ◽  
Display System ◽  
3D Display ◽  
Surgical Performance ◽  
3D Vision ◽  
Significant Difference ◽  
System Data ◽  
The Difference ◽  
Display Technique

Abstract Background The use of 3D technique compared to high-resolution 2D-4K-display technique has been shown to optimize spatial orientation and surgical performance in laparoscopic surgery. Since women make up an increasing amount of medical students and surgeons, this study was designed to investigate whether one gender has a greater benefit from using a 3D compared to a 4K-display system. Methods In a randomized cross-over trial, the surgical performance of male and female medical students (MS), non-board certified surgeons (NBCS), and board certified surgeons (BCS) was compared using 3D- vs. 4K-display technique at a minimally invasive training parkour with multiple surgical tasks and repetitions. Results 128 participants (56 women, 72 men) were included. Overall parkour time in seconds was 3D vs. 4K for all women 770.7 ± 31.9 vs. 1068.1 ± 50.0 (p < 0.001) and all men 664.5 ± 19.9 vs. 889.7 ± 31.2 (p < 0.001). Regarding overall mistakes, participants tend to commit less mistakes while using the 3D-vision system, showing 10.2 ± 1.1 vs. 13.3 ± 1.3 (p = 0.005) for all women and 9.6 ± 0.7 vs. 12.2 ± 1.0 (p = 0.001) for all men. The benefit of using a 3D system, measured by the difference in seconds, was for women 297.3 ± 41.8 (27.84%) vs. 225.2 ± 23.3 (25.31%) for men (p = 0.005). This can be confirmed in the MS group with 327.6 ± 65.5 (35.82%) vs. 249.8 ± 33.7 (32.12%), p = 0.041 and in the NBCS group 359 ± 52.4 (28.25%) vs. 198.2 ± 54.2 (18.62%), p = 0.003. There was no significant difference in the BCS group. Conclusion 3D laparoscopic display technique optimizes surgical performance compared to the 2D-4K technique for both women and men. The greatest 3D benefit was found for women with less surgical experience. As a possible result of surgical education, this gender specific difference disappears with higher grade of experience. Using a 3D-vision system could facilitate surgical apprenticeship, especially for women.

Convolutional Neural Networks for 3D Vision System Data : A review

2018 ◽  
Author(s):  
Niall OrMahony ◽  
Sean Campbell ◽  
Lenka Krpalkova ◽  
Anderson Carvalho ◽  
Gustavo Adolfo Velasco-Hernandez ◽  
...  
Keyword(s):  
Neural Networks ◽  
Convolutional Neural Networks ◽  
Vision System ◽  
3D Vision ◽  
System Data

scholarly journals Attitudes and Knowledge of Medical Students about Distance Learning / Stavovi i znanje studenata medicine o učenju na daljinu

2015 ◽  
Vol 32 (3) ◽  
pp. 199-207 ◽  
Author(s):  
Aleksandra Stanković ◽  
Branislav Petrović ◽  
Zoran Milosević
Keyword(s):  
Distance Learning ◽  
Medical Students ◽  
First Year ◽  
Sources Of Information ◽  
Positive Attitudes ◽  
Significant Difference ◽  
E Learning ◽  
Attitudes And Knowledge ◽  
The Difference ◽  
Methods Of Learning

Abstract Distance learning can be defined as education or training offered to participants at a different place, physically distant from the lecturer or sources of information. The difference in attitudes and knowledge of students about distance learning in relation to gender and year of studying was examined. The study sample included 371 students of the Faculty of Medicine in Niš (165 students were at the first year of studies and 206 students were at the sixth year of studies). Originally structured epidemiological questionnaire was distributed to students. Gender and age had no significant influence on students’ knowledge of distance learning. There was no statistically significant difference in taking positive attitudes about distance learning among medical students of the first and sixth year. Gender has statistically significantly affected the attitudes. E-learning does not eliminate the existing methods of learning, but it supplements them and greatly helps in teaching plans and programs.

scholarly journals 3D- vs. 4K-Display System - Influence of "State-of-the-art"-Display Technique On Surgical Performance (IDOSP-Study) in minimal invasive surgery: protocol for a randomized cross-over trial

2018 ◽  
Author(s):  
Roger Wahba ◽  
Rabi R Datta ◽  
Andrea Hedergott ◽  
Jana Bußhoff ◽  
Thomas Bruns ◽  
...  
Keyword(s):  
Learning Curve ◽  
Invasive Surgery ◽  
Minimal Invasive Surgery ◽  
State Of The Art ◽  
Minimal Invasive ◽  
Stereoscopic Vision ◽  
Display System ◽  
Surgical Performance ◽  
Stress Load ◽  
Display Technique

Abstract Background: Three-dimensional (3D) stereoscopic vision is crucial to perform any kind of manual tasks. The reduction from real life 3D- to virtual two-dimensional (2D) sight is a major challenge in minimal invasive surgery (MIS). 3D-display technique has shown to reduce operation time, mistakes, and improve the learning curve. Therefore it seems to optimize surgical performance for novice and experienced surgeons. Inspired by consumer electronics 4K display technique was introduced to MIS recently. Due to its high resolution and zoom-effect surgeons should benefit from it. Aim of this study is to evaluate if “state-of-the-art” 3D- versus 4K- display techniques could influence surgical performance. Methods: A randomized cross-over single-institution single-blinded trial is designed. It compares the primary outcome parameter “surgical performance”, represented by “performance time “ and “number of mistakes” using a passive polarizing 3D- and a 4K-display system (2 arms) to perform different tasks in a minimal-invasive/laparoscopic training parkour. Secondary outcome parameters are the mental stress load (NASA task load index) and the learning curve. Unexperienced novices (medial students), non-board certified and board-certified abdominal surgeons participate in the trial (i.e. level of experience, 3 strata). The parkour consists of 7 tasks (novices 5 tasks), which will be repeated 3 times. The 1st run of the parkour will be performed with the randomized display system the 2nd with the other one. After each run metal stress load is measured. After completion of the parkour all participant are evaluated by an ophthalmologist for visual acuity and stereoscopic vision with five tests. A sample-size of 34 per stratum is required to detect a standardized effect of 0.5 with a power of 80% at two-sided type I error of 5%. Thus, altogether 102 subjects need to be enrolled. Discussion: Complex surgical procedures are performed in minimal invasive/laparoscopic technique. This study should provide some evidence to decide which display technique a surgeon could choose to optimize his performance. Trial Registration: This trial is registered at clinicaltrials.gov (trial number: NCT03445429, registered February 7, 2018, http://www.clinicaltrials.gov) Keywords: Minimal invasive surgery, laparoscopic, 3D, 4K, surgical performance, learning curve, surgical training

Computer-aided 3D display system and its application in 3D vision test

1998 ◽  
Author(s):  
XiaoYun Shen ◽  
Lan Ma ◽  
Chunping Hou ◽  
Jiening Wang ◽  
Da Tang ◽  
...  
Keyword(s):  
Display System ◽  
3D Display ◽  
3D Vision ◽  
Computer Aided

scholarly journals Feedback to Receivers: Knowledge and Perception of Medical Students in a Public Sector Institute of a Developing Country

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Hamza Waqar Bhatti ◽  
Syed Muhammad Jawad Zaidi ◽  
Mehwish Kaneez ◽  
Javeria Awan ◽  
Rashid Naeem Khan ◽  
...  
Keyword(s):  
Medical Education ◽  
Medical Students ◽  
Developing Country ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Significant Difference ◽  
Level Of Knowledge ◽  
The Difference ◽  
Medical University ◽  
Feedback Delivery

Background: The practice of effective feedback delivery in medical institutes of developing countries lags behind the modern principles of medical education. This demands the need to understand the students’ knowledge and perception regarding received feedback in the setting of a developing country. Aims: To assess the level of knowledge and perception of feedback among students. To find the correlation between knowledge and perception. To identify problematic areas in feedback delivery and provide recommendations for rectification. Methods: A cross-sectional study conducted in Rawalpindi Medical University Pakistan, in which 480 medical students from 2nd till 5th-year MBBS were evaluated regarding their knowledge and perception about feedback using structured questionnaires. Results: The students had a good level of knowledge regarding The concept of feedback. However, they had a negative perception of the feedback given to them by their teachers. There was no correlation between mean knowledge and perception scores (r=-0.05, p = 0.272). There was a significant difference between knowledge (p=0.0004) and perception (p=0.02) scores across gender. The difference in mean knowledge scores across academic years was not significant (p=0.267) but this difference was significant for mean perception scores (p=0.001). Conclusion: Strategies should be adopted to incorporate feedback into the curriculum for improving the quality of medical education in a developing country.

scholarly journals 3D vs. 4K Display System - Influence of “State-of-the-art”-Display Technique On Surgical Performance (IDOSP-Study) in minimally invasive surgery: protocol for a randomized cross-over trial

Trials ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Roger Wahba ◽  
Rabi Raj Datta ◽  
Andrea Hedergott ◽  
Jana Bußhoff ◽  
Thomas Bruns ◽  
...  
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Learning Curve ◽  
Mental Stress ◽  
State Of The Art ◽  
Stereoscopic Vision ◽  
Display System ◽  
Surgical Performance ◽  
Stress Load ◽  
Display Technique

Abstract Background Three-dimensional (3D) stereoscopic vision is crucial to perform any kind of manual task. The reduction from real life 3D to virtual two-dimensional (2D) sight is a major challenge in minimally invasive surgery (MIS). A 3D display technique has been shown to reduce operation time and mistakes and to improve the learning curve. Therefore, the use of a3D display technique seems to optimize surgical performance for novice and experienced surgeons. Inspired by consumer electronics, a 4K display technique was recently introduced to MIS. Due to its high resolution and zoom effect, surgeons should benefit from it. The aim of this study is to evaluate if “state-of-the-art” 3D- vs. 4K-display techniques could influence surgical performance. Methods A randomized, cross-over, single-institution, single-blinded trial is designed. It compares the primary outcome parameter “surgical performance”, represented by “performance time ”and “number of mistakes”, using a passive polarizing 3D and a 4K display system (two arms) to perform different tasks in a minimally invasive/laparoscopic training parkour. Secondary outcome parameters are the mental stress load (National Aeronautics and Space Administration (NASA) Task Load Index) and the learning curve. Unexperienced novices (medical students), non-board-certified, and board-certified abdominal surgeons participate in the trial (i.e., level of experience, 3 strata). The parkour consists of seven tasks (for novices, five tasks), which will be repeated three times. The 1st run of the parkour will be performed with the randomized display system, the 2nd run with the other one. After each run, the mental stress load is measured. After completion of the parkour, all participants are evaluated by an ophthalmologist for visual acuity and stereoscopic vision with five tests. Assuming a correlation of 0.5 between measurements per subject, a sample size of 36 per stratum is required to detect a standardized effect of 0.5 (including an additional 5% for a non-parametric approach) with a power of 80% at a two-sided type I error of 5%. Thus, altogether 108 subjects need to be enrolled. Discussion Complex surgical procedures are performed in a minimally invasive/laparoscopic technique. This study should provide some evidence to decide which display technique a surgeon could choose to optimize his performance. Trial registration ClinicalTrials.gov, NCT03445429. Registered on 7 February 2018.

scholarly journals Interactive display and analysis of data from bivariate flow cytometers.

1979 ◽  
Vol 27 (1) ◽  
pp. 579-583 ◽  
Author(s):  
D E Bennett ◽  
B H Mayall
Keyword(s):  
Standard Deviation ◽  
Computer Program ◽  
Bivariate Distribution ◽  
Display System ◽  
Tolerance Limits ◽  
Interactive Computer Program ◽  
Interactive Display ◽  
Significant Difference ◽  
The Matrix ◽  
System Data

An interactive computer program, SWELL, displayss and analyzes bivariate distributions generated by flow cytometers. SWELL is modular with options available via a menu, is written in Fortran, and utilizes a video color display system. Data are accumulated as a bivariate distribution that is transferred to the computer as a 64 x 64 matrix. For ease of visualization, matrices are displayed in pseudocolor. The distribution values are broken into eight ranges and each range is represented by a color. Each element of the matrix is then displayed in its assigned color. To allow pooling and comparison, distributions are aligned, edited, and standardized. Unknown samples are pooled or analyzed singly and compared to the normal pool by subtraction. Differences are displayed as pseudocolor matrices of sign, magnitude, or statistical magnitude in units of standard deviation. This latter display, scaled to tolerance limits, readily reveals regions of significant difference between normal and abnormal samples. Counts within such regions can be compared to diagnose samples automatically.

scholarly journals The relationship between attendance and academic performance of undergraduate medical students during surgical clerkship

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hamdi Al Shenawi ◽  
Rami Yaghan ◽  
Amer Almarabheh ◽  
Noor Al Shenawi
Keyword(s):  
Academic Performance ◽  
Medical Students ◽  
Female Students ◽  
Male Students ◽  
Attendance Rate ◽  
Undergraduate Medical Students ◽  
Performance Category ◽  
Significant Difference ◽  
The Mean ◽  
The Difference

Abstract Background The current study aimed to evaluate the previously unexplored correlation between undergraduate medical students’ attendance during their surgical clerkship and their academic performance. It also aimed to explore any difference in the attendance rate between male and female students and whether this difference, if present, affects the academic performance. Methods A retrospective descriptive cross-sectional study has been conducted on 331 undergraduate medical students during their surgical clerkships at the College of Medicine and Medical Sciences (CMMS) at Arabian Gulf University (AGU), Bahrain from September 2018 to June 2020. Results There was a positive statistically significant correlation between students’ attendance during surgical clerkship and academic performance (r = 0.360, P <  0.01). Mean attendance rate was greater in each increasing category of academic performance: 47.95% in the weak category (less than 65%, n = 42), 57.62% in the good performance category (65% to less than 75%, n = 108), 67.82% in the very good performance category (75% to less than 85%, n = 126), 83.16% in the excellent performance category (85% and above, n = 55). The mean attendance rate of male students was 59.76% (SD = 25.73), compared to 66.92% (SD = 24.30) in the female students. T-test indicated that the difference between the mean attendance of the two groups of the students (male, female) was statistically significant (t = 2.483, p <  0.05). On the other hand, the difference between the mean academic performance for the two groups of students, male & female, (t = 0.284, p = 0.777) was not statistically significant. Conclusions Our study showed a significant relationship between undergraduate medical students’ attendance during their surgical clerkship and their academic performance. Further studies are needed to stratify this correlation according to clinical and theoretical teaching activities. No significant difference was observed in academic performance between female and male students.

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