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Niu D, Xu Q, Xu H, Yin S, Hao Z, Shi H, Zhou J, Tai S, Zou Z, Yang C, Liang C. Fabrication and application of a wireless high-definition endoscopic system in urological surgeries. BJU Int 2023; 131:183-189. [PMID: 35199469 PMCID: PMC10078773 DOI: 10.1111/bju.15718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/04/2022] [Accepted: 02/16/2022] [Indexed: 01/27/2023]
Abstract
OBJECTIVE To introduce a wireless high-definition endoscopic system (WHES) and compare it with a Storz high-definition (HD) system for image resolution, colour resolution, weight, and costs. MATERIALS AND METHODS The WHES incorporated a portable light-emitting diode light source and a wireless camera module, which can be compatible with different types of endoscopes. Images were wirelessly transmitted to a monitor or mobile platform such as smartphone through a receiver. The International Standards Organization 12233 resolution chart image was used for the comparison of image resolution and Munsell Colour Checker Chart for colour resolution. In all, 38 endourologists used a Likert questionnaire to blindly evaluate cystoscopic images from a patient with haematuria. The surgical team was asked about the overall performance of the WHES in 20 laparoscopic adrenalectomies using a unvalidated subjective survey. RESULTS There was no difference in image resolution between the two systems (5.82 vs 5.89 line pairs/mm). Without lens and respective light sources, there were better purple (ΔE = 21.48 vs 28.73), blue (ΔE = 34.88 vs 38.6) and red colour resolution (ΔE = 29.01 vs 35.45) for the WHES camera (P < 0.05), but orange (ΔE = 43.45 vs 36.52) and yellow (ΔE = 52.7 vs 35.93) resolutions were better for the Storz HD camera (P < 0.05). Comparing the WHES to a Storz laparoscopic system, the Storz system still had better resolution of orange and yellow, while the resolution of purple, blue, and red was similar for the two systems. The expert comments on resolution, brightness, and colour for cystoscopy were not statistically different, but the ergonomics score for the WHES was higher (3.7 vs 3.33, P = 0.038). The overall cost of the WHES was $23 000-25 000 compared with $45 000-50 000 for a Storz system. There were 100% general satisfaction for the WHES in the survey. CONCLUSION We developed a new WHES that provides the same resolution images as a Storz laparoscopic system and acceptable colour resolution with the advantages of wireless connection, small volume, low cost, portability, and high-speed wireless transmission.
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Affiliation(s)
- Di Niu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Qihang Xu
- Hefei Deming Electronics Co Ltd, Hefei, China
| | - Hanjiang Xu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Shuiping Yin
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Zongyao Hao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Haoqiang Shi
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Jun Zhou
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Sheng Tai
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Zhihui Zou
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Cheng Yang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China
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Lee T, Teng TZJ, Shelat VG. Choledochoscopy: An update. World J Gastrointest Endosc 2021; 13:571-592. [PMID: 35070020 PMCID: PMC8716986 DOI: 10.4253/wjge.v13.i12.571] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 07/23/2021] [Accepted: 11/15/2021] [Indexed: 02/06/2023] Open
Abstract
Choledochoscopy, or cholangioscopy, is an endoscopic procedure for direct visualization within the biliary tract for diagnostic or therapeutic purposes. Since its conception in 1879, many variations and improvements are made to ensure relevance in diagnosing and managing a range of intrahepatic and extrahepatic biliary pathologies. This ranges from improved visual impression and optical guided biopsies of indeterminate biliary strictures and clinically indistinguishable pathologies to therapeutic uses in stone fragmentation and other ablative therapies. Furthermore, with the evolving understanding of biliary disorders, there are significant innovative ideas and techniques to fill this void, such as nuanced instances of biliary stenting and retrieving migrated ductal stents. With this in mind, we present a review of the current advancements in choledo-choscopy with new supporting evidence that further delineates the role of choledochoscopy in various diagnostic and therapeutic interventions, complications, limitations and put forth areas for further study.
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Affiliation(s)
- Tsinrong Lee
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Thomas Zheng Jie Teng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Vishal G Shelat
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore
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Zwimpfer TA, Wismer C, Fellmann-Fischer B, Geiger J, Schötzau A, Heinzelmann-Schwarz V. Comparison of 2D 4K vs. 3D HD laparoscopic imaging systems using a pelvitrainer model: a randomized controlled study. Updates Surg 2021; 74:1137-1147. [PMID: 34699034 PMCID: PMC9213270 DOI: 10.1007/s13304-021-01195-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/18/2021] [Indexed: 11/30/2022]
Abstract
Laparoscopic surgery provides well-known benefits, but it has technological limitations. Depth perception is particularly crucial, with three-dimensional (3D) imaging being superior to two-dimensional (2D) HD imaging. However, with the introduction of 4K resolution monitors, 2D rendering is capable of providing higher-quality visuals. Therefore, this study aimed to compare 3D HD and 2D 4K imaging using a pelvitrainer model. Eight experts and 32 medical students were performing the same four standardized tasks using 2D 4K and 3D HD imaging systems. Task completion time and the number of errors made were recorded. The Wilcoxon test and mixed-effects models were used to analyze the results. Students were significantly faster in all four tasks when using the 3D HD perspective. The median difference ranged from 18 s in task 3 (P < 0.003) up to 177.5 s in task 4 (P < 0.001). With the exception of task 4, students demonstrated significantly fewer errors in all tasks involving 3D HD imaging. The experts’ results confirmed these findings, as they were also faster in all four tasks using 3D HD, which was significant for task 1 (P < 0.001) and task 4 (P < 0.006). The expert group also achieved better movement accuracy using the 3D HD system, with fewer mistakes made in all four tasks, which was significant in task 4 (P < 0.001). Participants in both groups achieved better results with the 3D HD imaging system than with the 2D 4K system. The 3D HD image system should be used when available. Trial registration: this trial is registered at research registry under the identifier researchregistry6852.
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Affiliation(s)
- Tibor A Zwimpfer
- Department of Obstetrics and Gynaecology, University Hospital Basel, Spitalstrasse 21, 4056, Basel, Switzerland. .,Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland.
| | | | - Bernhard Fellmann-Fischer
- Department of Obstetrics and Gynaecology, University Hospital Basel, Spitalstrasse 21, 4056, Basel, Switzerland
| | - James Geiger
- Department of Obstetrics and Gynaecology, University Hospital Basel, Spitalstrasse 21, 4056, Basel, Switzerland
| | - Andreas Schötzau
- Department of Obstetrics and Gynaecology, University Hospital Basel, Spitalstrasse 21, 4056, Basel, Switzerland
| | - Viola Heinzelmann-Schwarz
- Department of Obstetrics and Gynaecology, University Hospital Basel, Spitalstrasse 21, 4056, Basel, Switzerland.,Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
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Bhattacharjee HK, Agarwal H, Singla V, Chaliyadan S, Mishra AK, Suhani S, Joshi M, Parshad R. Learning Pattern of Two-Dimensional, Three-Dimensional, and Ultra-High-Definition Endovision System on Standardized Phantom Tasks: An Ex Vivo Randomized Study. J Laparoendosc Adv Surg Tech A 2021; 32:675-683. [PMID: 34677083 DOI: 10.1089/lap.2021.0530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Three-dimensional (3D), high-definition (HD), and ultra-high-definition (4K HD) are recent additions over regular HD technology for laparoscopic surgery. The aim of this study was to evaluate the learning pattern of these systems on standardized phantom tasks. Methodology: Forty-five stereo-enabled resident doctors were randomly assigned into three groups. They performed three validated tasks, precision touch on flat surface, precision touch on uneven surface, surgical knot on rubber tube using either two-dimensional (2D) HD, 3D HD, or 4K HD Endovision systems. Each task was repeated 20 times. Data from four consecutive repetitions were pooled to make five blocks. Split group analysis by comparing the consecutive blocks in execution time and errors were made to see the learning pattern. A significant difference was accepted as continuous learning while no significant difference was accepted as learning stabilization. Result: Operating time was stabilized in two tasks after third block in 2D HD, one task after fourth block in 4K HD. There was continuous learning in all tasks with 3D HD. The 3D HD group was significantly faster than 2D HD and 4K HD in most of the tasks on fifth block. The error scores were similar between the consecutive blocks in 4K HD. It was stabilized after second block in 2D HD group and third block on 3D HD. Conclusion: The 3D HD Endovision system has more potential of faster execution of a task, but need more practice to reach similar safety profile. The 4K HD reached the safety plateau with minimal repetitions.
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Affiliation(s)
- Hemanga K Bhattacharjee
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Harshit Agarwal
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Vitish Singla
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Shafneed Chaliyadan
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Ashwani K Mishra
- National Drug Dependence Treatment Center, Biostatistics Division, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Suhani Suhani
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Mohit Joshi
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Rajinder Parshad
- Department of Surgical Disciplines, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
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