Changfeng Zhao, Haibin Wei, Alin Ji, Kaichuang Yang, Jia Lyu, YunKai Yang
Background
The main objective of this study was to investigate the impact of robot-assisted laparoscopic resection on paravertebral tumours using the anterior peritoneal approach.
Methods
A retrospective analysis to identify patients with paravertebral tumours. A total of 21 patients, who underwent robot-assisted laparoscopic transabdominal anterior approach surgery from March 2012 to August 2020.
Results
The median operation time was 66.2 ± 14.5 min, with a range of 0–100 min. Intraoperative blood loss was minimal, with a median of 11.4 ± 7.9 mL and a range of 5–30 mL. The median tumour length was 4.8 ± 2.3 cm, ranging from 2.1 to 11.3 cm. Postoperative hospitalisation lasted for a median of 3.2 ± 0.9 days. During the 48-month follow-up period, no tumour recurrence or residual was observed in any patient.
Conclusions
Robot-assisted laparoscopic resection of lumbar paravertebral schwannoma proved to be a safe and viable surgical approach. It offers a relatively new treatment option for paraspinal schwannoma.
{"title":"Retrospective analysis of robot-assisted laparoscopic transabdominal anterior approach for the treatment of lumbar paravertebral schwannoma","authors":"Changfeng Zhao, Haibin Wei, Alin Ji, Kaichuang Yang, Jia Lyu, YunKai Yang","doi":"10.1002/rcs.2600","DOIUrl":"10.1002/rcs.2600","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The main objective of this study was to investigate the impact of robot-assisted laparoscopic resection on paravertebral tumours using the anterior peritoneal approach.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A retrospective analysis to identify patients with paravertebral tumours. A total of 21 patients, who underwent robot-assisted laparoscopic transabdominal anterior approach surgery from March 2012 to August 2020.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The median operation time was 66.2 ± 14.5 min, with a range of 0–100 min. Intraoperative blood loss was minimal, with a median of 11.4 ± 7.9 mL and a range of 5–30 mL. The median tumour length was 4.8 ± 2.3 cm, ranging from 2.1 to 11.3 cm. Postoperative hospitalisation lasted for a median of 3.2 ± 0.9 days. During the 48-month follow-up period, no tumour recurrence or residual was observed in any patient.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Robot-assisted laparoscopic resection of lumbar paravertebral schwannoma proved to be a safe and viable surgical approach. It offers a relatively new treatment option for paraspinal schwannoma.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/rcs.2600","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138447393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wireless power transmission for capsule robots has always posed challenges due to the unpredictable postures.
Methods
A radial transmitting coil with a novel ferrite structure is proposed, which consists of two parts with the function of converging magnetic induction lines and reducing magnetic leakage. To improve the flux density, uniformity, and shielding effectiveness, the design parameters are discussed and optimized on the basis of analytical calculations and simulation analysis.
Results
The proposed ferrite structure improves the power transfer efficiency from 2.78% to 5.21%. Additionally, the power transfer stability showed a slight improvement from 76.4% to 77.6%, while magnetic leakage was reduced by 84%. Finally, the human tissue safety is also discussed and verified.
Conclusions
The wireless power transfer system is shown to be feasible and safe.
{"title":"Wireless power transfer system for capsule robot designed by radial square transmitting coil pair with novel ferrite structure","authors":"Renqing Wen, Guozheng Yan, Zhiwu Wang, Haoyu Zhuang, Shuai Kuang","doi":"10.1002/rcs.2598","DOIUrl":"10.1002/rcs.2598","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Wireless power transmission for capsule robots has always posed challenges due to the unpredictable postures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A radial transmitting coil with a novel ferrite structure is proposed, which consists of two parts with the function of converging magnetic induction lines and reducing magnetic leakage. To improve the flux density, uniformity, and shielding effectiveness, the design parameters are discussed and optimized on the basis of analytical calculations and simulation analysis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The proposed ferrite structure improves the power transfer efficiency from 2.78% to 5.21%. Additionally, the power transfer stability showed a slight improvement from 76.4% to 77.6%, while magnetic leakage was reduced by 84%. Finally, the human tissue safety is also discussed and verified.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The wireless power transfer system is shown to be feasible and safe.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138447394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The impact of unilateral and bilateral nerve-sparing robot-assisted laparoscopic radical prostatectomy (NS-RARP) procedures on continence and the time to continence recovery have not been established.
Material and Methods
We retrospectively reviewed a total of 2801 patients who underwent RARP in 9 institutions. Procedures were classified as NS or non-NS; NS procedures were further classified as unilateral or bilateral. The recovery of continence was analysed using propensity score matching method.
Results
The pad-free rates at 12 months after surgery were higher in the NS group (95% confidence interval of odds ratio, 1.06–1.51). Pad-free rates at all time points within 12 months of surgery did not significantly differ between the unilateral and bilateral NS groups.
Conclusions
NS-RARP resulted in better urinary continence outcomes than non-NS-RARP in the first 12 months after surgery. Urinary recovery rates did not significantly differ between unilateral and bilateral NS-RARP.
{"title":"Early and late urinary continence outcomes after unilateral and bilateral nerve-sparing robot-assisted radical prostatectomy: A retrospective multicentre cohort study in Japan (the MSUG94 group)","authors":"Kazushige Sakaguchi, Shin Ebara, Tomoyuki Tatenuma, Takeshi Sasaki, Yoshinori Ikehata, Akinori Nakayama, Makoto Kawase, Masahiro Toide, Tatsuaki Yoneda, Jun Teishima, Kazuhide Makiyama, Takahiro Inoue, Hiroshi Kitamura, Kazutaka Saito, Takuya Koie, Fumitaka Koga, Shinji Urakami","doi":"10.1002/rcs.2593","DOIUrl":"10.1002/rcs.2593","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The impact of unilateral and bilateral nerve-sparing robot-assisted laparoscopic radical prostatectomy (NS-RARP) procedures on continence and the time to continence recovery have not been established.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>We retrospectively reviewed a total of 2801 patients who underwent RARP in 9 institutions. Procedures were classified as NS or non-NS; NS procedures were further classified as unilateral or bilateral. The recovery of continence was analysed using propensity score matching method.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The pad-free rates at 12 months after surgery were higher in the NS group (95% confidence interval of odds ratio, 1.06–1.51). Pad-free rates at all time points within 12 months of surgery did not significantly differ between the unilateral and bilateral NS groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>NS-RARP resulted in better urinary continence outcomes than non-NS-RARP in the first 12 months after surgery. Urinary recovery rates did not significantly differ between unilateral and bilateral NS-RARP.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138178232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Robotic systems are increasingly used to enhance clinical outcomes in prostate intervention. To evaluate the clinical value of the proposed portable robot, the robot-assisted and robot-targeted punctures were validated experimentally.
Method
The robot registration utilising the electromagnetic tracker achieves coordinate transformation from the ultrasound (US) image to the robot. Subsequently, Transrectal ultrasound (TRUS)-guided phantom trials were conducted for robot-assisted, free-hand, and robot-targeted punctures.
Results
The accuracy of robot registration was 0.95 mm, and the accuracy of robot-assisted, free-hand, and robot-targeted punctures was 2.38 ± 0.64 mm, 3.11 ± 0.72 mm, and 3.29 ± 0.83 mm sequentially.
Conclusion
The registration method has been successfully applied to robot-targeted puncture. Current results indicate that the accuracy of robot-targeted puncture is slightly inferior to that of manual operations. Moreover, in manual operation, robot-assisted puncture improves the accuracy of free-hand puncture. Accuracy superior to 3.5 mm demonstrates the clinical applicability of both robot-assisted and robot-targeted punctures.
{"title":"Preliminary evaluation for ultrasound-guided targeted prostate biopsy using a portable surgical robot: Ex vivo results","authors":"Wenhe Jiang, Yongzhuo Gao, Mingwei Wen, Zhichao Ye, Huageng Liang, Dongmei Wu, Wei Dong","doi":"10.1002/rcs.2597","DOIUrl":"10.1002/rcs.2597","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Robotic systems are increasingly used to enhance clinical outcomes in prostate intervention. To evaluate the clinical value of the proposed portable robot, the robot-assisted and robot-targeted punctures were validated experimentally.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Method</h3>\u0000 \u0000 <p>The robot registration utilising the electromagnetic tracker achieves coordinate transformation from the ultrasound (US) image to the robot. Subsequently, Transrectal ultrasound (TRUS)-guided phantom trials were conducted for robot-assisted, free-hand, and robot-targeted punctures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The accuracy of robot registration was 0.95 mm, and the accuracy of robot-assisted, free-hand, and robot-targeted punctures was 2.38 ± 0.64 mm, 3.11 ± 0.72 mm, and 3.29 ± 0.83 mm sequentially.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The registration method has been successfully applied to robot-targeted puncture. Current results indicate that the accuracy of robot-targeted puncture is slightly inferior to that of manual operations. Moreover, in manual operation, robot-assisted puncture improves the accuracy of free-hand puncture. Accuracy superior to 3.5 mm demonstrates the clinical applicability of both robot-assisted and robot-targeted punctures.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138178234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gloria Coden, Patrick Greenwell, Ruijia Niu, Christopher Fang, Carl Talmo, Eric L. Smith
Introduction
Little information is known regarding the energy expenditure of the surgeon during total hip arthroplasty (THA). We sought to compare the energy expenditure associated with femoral broaching using two techniques: manual and automated.
Methods
We recorded energy expenditure, minute ventilation, heart rate, and total broaching time of a single surgeon while broaching the femoral canal during direct anterior THA using two different techniques: Manual broaching (n = 26) and automated broaching (n = 20).
Results
Manual broaching required a longer time than automated broaching (6.1 ± 1.1 vs. 3.7 ± 0.9 min; p < 0.001) with an increase in energy expenditure (32.6 ± 7.0 vs. 16.0 ± 7.1 Calories; p < 0.001). Heart rate was higher with manual broaching (99.4 ± 9.8 vs. 90.1 ± 9.8 beats per min; p = 0.003), along with minute ventilation (36.5 ± 7.0 vs. 30.3 ± 5.8 L/min; p = 0.003). There were no intraoperative complications.
Conclusions
Automated femoral broaching during THA can decrease the energy expenditure of broaching by 50% and time of broaching by 40%, when compared to manual technique.
Clinical Trial Registration
This research was not a clinical trial.
引言:关于全髋关节置换术中外科医生能量消耗的信息很少。我们试图比较使用两种技术(手动和自动)与股骨拉削相关的能量消耗。方法:我们记录了一名外科医生在直接前路THA中牵引股管时的能量消耗、分钟通气量、心率和总牵引时间，使用两种不同的技术:手动牵引(n = 26)和自动牵引(n = 20)。结果:手动拉削比自动拉削所需时间更长(6.1±1.1 vs 3.7±0.9 min);结论:与手动技术相比，THA期间自动股骨拉削可以减少50%的拉削能量消耗和40%的拉削时间。临床试验注册:本研究不是临床试验。
{"title":"Energy expenditure of femoral broaching in direct anterior total hip replacements—Comparison between manual and automated techniques","authors":"Gloria Coden, Patrick Greenwell, Ruijia Niu, Christopher Fang, Carl Talmo, Eric L. Smith","doi":"10.1002/rcs.2592","DOIUrl":"10.1002/rcs.2592","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>Little information is known regarding the energy expenditure of the surgeon during total hip arthroplasty (THA). We sought to compare the energy expenditure associated with femoral broaching using two techniques: manual and automated.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We recorded energy expenditure, minute ventilation, heart rate, and total broaching time of a single surgeon while broaching the femoral canal during direct anterior THA using two different techniques: Manual broaching (<i>n</i> = 26) and automated broaching (<i>n</i> = 20).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Manual broaching required a longer time than automated broaching (6.1 ± 1.1 vs. 3.7 ± 0.9 min; <i>p</i> < 0.001) with an increase in energy expenditure (32.6 ± 7.0 vs. 16.0 ± 7.1 Calories; <i>p</i> < 0.001). Heart rate was higher with manual broaching (99.4 ± 9.8 vs. 90.1 ± 9.8 beats per min; <i>p</i> = 0.003), along with minute ventilation (36.5 ± 7.0 vs. 30.3 ± 5.8 L/min; <i>p</i> = 0.003). There were no intraoperative complications.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Automated femoral broaching during THA can decrease the energy expenditure of broaching by 50% and time of broaching by 40%, when compared to manual technique.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Trial Registration</h3>\u0000 \u0000 <p>This research was not a clinical trial.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138178233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yibo Tang, Min Chen, Yuan Xing, Yu Wang, Honglei Wang, Yunpeng Ji
Background
A training system that allows the trainee to perform laparoscopic suturing in a realistic environment and measures the force applied to the tissue would be invaluable. This study aims to establish the construct and content validity of the training system we developed for the objective assessment of surgeons' skills.
Methods
Ten novices, 6 residents, and 6 experts performed the suturing and knot-tying task using the training system. Ten force-related parameters were used to analyse the system's construct validity. Experts were invited to evaluate the content validity with questionnaires.
Results
Eight parameters showed significant differences between the three groups. The construct validity results demonstrated that the system could distinguish the tissue handling ability of operators. The experts agreed that the system had excellent content validity with an average score of 4.71/5.
Conclusions
The training system is likely valid for surgical training. It can realistically simulate surgical scenarios and evaluate the tissue handling ability of trainees.
{"title":"Validation of a training system for laparoscopic longitudinal suturing in lesion","authors":"Yibo Tang, Min Chen, Yuan Xing, Yu Wang, Honglei Wang, Yunpeng Ji","doi":"10.1002/rcs.2594","DOIUrl":"10.1002/rcs.2594","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>A training system that allows the trainee to perform laparoscopic suturing in a realistic environment and measures the force applied to the tissue would be invaluable. This study aims to establish the construct and content validity of the training system we developed for the objective assessment of surgeons' skills.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Ten novices, 6 residents, and 6 experts performed the suturing and knot-tying task using the training system. Ten force-related parameters were used to analyse the system's construct validity. Experts were invited to evaluate the content validity with questionnaires.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Eight parameters showed significant differences between the three groups. The construct validity results demonstrated that the system could distinguish the tissue handling ability of operators. The experts agreed that the system had excellent content validity with an average score of 4.71/5.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The training system is likely valid for surgical training. It can realistically simulate surgical scenarios and evaluate the tissue handling ability of trainees.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71523788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fabio Ausania, Filippo Landi, Carolina González-Abós, John B. Martinie, Dionisios Vrochides, Matthew Walsh, Shanaz M. Hossain, Steven White, Viswakumar Prabakaran, Laleh G. Melstrom, Yuman Fong, Valentina Valle, Yuntao Bing, Dianrong Xiu, Gregorio Di Franco, Nicola de' Angelis, Alexis Laurent, Giuseppe Giuliani, Graziano Pernazza, Riccardo Memeo, José Rios, Andrea Coratti, Luca Morelli, Pier C. Giulianotti
Background
Robotic distal pancreatectomy (RDP) is associated with a lower conversion rate and less blood loss than laparoscopic distal pancreatectomy (LDP). LDP has similar oncological outcomes as open surgery in PDAC. The aim of this study was to compare perioperative and oncological outcomes in obese patients with RDP versus LDP for PDAC.
Materials and methods
Retrospectively, all obese patients who underwent RDP or LDP for PDAC between 2012 and 2022 at 12 international expert centres were included.
Results
out of 372, 81 patients were included. All baseline features were comparable between the two groups. RDP was associated with decreased blood loss (495mlLDP vs. 188mlRDP; p = 0.003), lower conversion rate (13.5%RDP vs. 36.4%LDP; p = 0.019) and lower rate of Clavien-Dindo ≥3 complications (13.5%RDP vs. 36.4%LDP; p = 0.019). Overall and disease-free survival were comparable.
Conclusions
In obese patients with left-sided PDAC, the robotic approach was associated with improved intraoperative outcomes and fewer severe complications.
{"title":"Robotic versus laparoscopic distal pancreatectomy for pancreatic adenocarcinoma in obese patients","authors":"Fabio Ausania, Filippo Landi, Carolina González-Abós, John B. Martinie, Dionisios Vrochides, Matthew Walsh, Shanaz M. Hossain, Steven White, Viswakumar Prabakaran, Laleh G. Melstrom, Yuman Fong, Valentina Valle, Yuntao Bing, Dianrong Xiu, Gregorio Di Franco, Nicola de' Angelis, Alexis Laurent, Giuseppe Giuliani, Graziano Pernazza, Riccardo Memeo, José Rios, Andrea Coratti, Luca Morelli, Pier C. Giulianotti","doi":"10.1002/rcs.2596","DOIUrl":"10.1002/rcs.2596","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Robotic distal pancreatectomy (RDP) is associated with a lower conversion rate and less blood loss than laparoscopic distal pancreatectomy (LDP). LDP has similar oncological outcomes as open surgery in PDAC. The aim of this study was to compare perioperative and oncological outcomes in obese patients with RDP versus LDP for PDAC.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and methods</h3>\u0000 \u0000 <p>Retrospectively, all obese patients who underwent RDP or LDP for PDAC between 2012 and 2022 at 12 international expert centres were included.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>out of 372, 81 patients were included. All baseline features were comparable between the two groups. RDP was associated with decreased blood loss (495mlLDP vs. 188mlRDP; <i>p</i> = 0.003), lower conversion rate (13.5%RDP vs. 36.4%LDP; <i>p</i> = 0.019) and lower rate of Clavien-Dindo ≥3 complications (13.5%RDP vs. 36.4%LDP; <i>p</i> = 0.019). Overall and disease-free survival were comparable.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>In obese patients with left-sided PDAC, the robotic approach was associated with improved intraoperative outcomes and fewer severe complications.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71489831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In robot-assisted surgery, automatic segmentation of surgical instrument images is crucial for surgical safety. The proposed method addresses challenges in the craniotomy environment, such as occlusion and illumination, through an efficient surgical instrument segmentation network.
Methods
The network uses YOLOv8 as the target detection framework and integrates a semantic segmentation head to achieve detection and segmentation capabilities. A concatenation of multi-channel feature maps is designed to enhance model generalisation by fusing deep and shallow features. The innovative GBC2f module ensures the lightweight of the network and the ability to capture global information.
Results
Experimental validation of the intracranial glioma surgical instrument dataset shows excellent performance: 94.9% MPA score, 89.9% MIoU value, and 126.6 FPS.
Conclusions
According to the experimental results, the segmentation model proposed in this study has significant advantages over other state-of-the-art models. This provides a valuable reference for the further development of intelligent surgical robots.
{"title":"MFF-Net: Multiscale feature fusion semantic segmentation network for intracranial surgical instruments","authors":"Zhenzhong Liu, Laiwang Zheng, Shubin Yang, Zichen Zhong, Guobin Zhang","doi":"10.1002/rcs.2595","DOIUrl":"10.1002/rcs.2595","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>In robot-assisted surgery, automatic segmentation of surgical instrument images is crucial for surgical safety. The proposed method addresses challenges in the craniotomy environment, such as occlusion and illumination, through an efficient surgical instrument segmentation network.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The network uses YOLOv8 as the target detection framework and integrates a semantic segmentation head to achieve detection and segmentation capabilities. A concatenation of multi-channel feature maps is designed to enhance model generalisation by fusing deep and shallow features. The innovative GBC2f module ensures the lightweight of the network and the ability to capture global information.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Experimental validation of the intracranial glioma surgical instrument dataset shows excellent performance: 94.9% MPA score, 89.9% MIoU value, and 126.6 FPS.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>According to the experimental results, the segmentation model proposed in this study has significant advantages over other state-of-the-art models. This provides a valuable reference for the further development of intelligent surgical robots.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71489830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To summarise the application of minimally invasive surgery for female primary pelvic retroperitoneal tumours (PPRTs).
Methods
The clinical data of PPRT in a hospital between January 2017 and August 2022 were retrospectively collected. Surgical outcomes for cystic and solid tumours and two minimally invasive techniques were compared.
Results
99 patients were included. Cystic tumours had fewer intraoperative injuries (4.0% vs. 28.0%, p < 0.001) than solid tumours. Robot-assisted laparoscopy (RALS) seemed to have fewer intraoperative complications (8.3% vs. 35.1%, p = 0.156) than conventional laparoscopy (CLS) in solid tumours. For cystic tumours, RALS included larger tumour sizes and longer operative times (p < 0.05), but intraoperative injury was comparable to CLS. RALS exhibited a higher cost than CLS in all tumours.
Conclusions
Minimally invasive surgery for solid PPRTs tends to be more difficult than for cystic tumours, and RALS has a slight advantage over CLS with respect to short-term PPRT outcomes.
{"title":"The surgical treatment of female primary pelvic retroperitoneal tumours: A retrospective study of 99 patients from a single centre in China","authors":"Xueyan Liu, Mengling Zhao, Hanlin Fu, Lulu Si, Qian Wang, Meng Mao, Ying Zhu, Ruixia Guo","doi":"10.1002/rcs.2591","DOIUrl":"10.1002/rcs.2591","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>To summarise the application of minimally invasive surgery for female primary pelvic retroperitoneal tumours (PPRTs).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The clinical data of PPRT in a hospital between January 2017 and August 2022 were retrospectively collected. Surgical outcomes for cystic and solid tumours and two minimally invasive techniques were compared.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>99 patients were included. Cystic tumours had fewer intraoperative injuries (4.0% vs. 28.0%, <i>p</i> < 0.001) than solid tumours. Robot-assisted laparoscopy (RALS) seemed to have fewer intraoperative complications (8.3% vs. 35.1%, <i>p</i> = 0.156) than conventional laparoscopy (CLS) in solid tumours. For cystic tumours, RALS included larger tumour sizes and longer operative times (<i>p</i> < 0.05), but intraoperative injury was comparable to CLS. RALS exhibited a higher cost than CLS in all tumours.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Minimally invasive surgery for solid PPRTs tends to be more difficult than for cystic tumours, and RALS has a slight advantage over CLS with respect to short-term PPRT outcomes.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71415850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruixuan Li, Ayoob Davoodi, Yuyu Cai, Gianni Borghesan, Nicola Cavalcanti, Christoph J. Laux, Mazda Farshad, Fabio Carrillo, Philipp Fürnstahl, Emmanuel Vander Poorten
Purpose
Spinal instrumentation with pedicle screw placement (PSP) is an important surgical technique for spinal diseases. Accurate screw trajectory is a prerequisite for PSP. Ultrasound (US) imaging with robot-assisted system forms a non-radiative alternative to provide precise screw trajectory. This study reports on the development and assessment of US navigation for this application.
Methods
A robot-assisted US reconstruction was proposed and an automatic CT-to-US registration algorithm was investigated, allowing the registration of screw trajectories. Experiments were conducted on ex-vivo lamb spines to evaluate system performance.
Results
In total, 72 screw trajectories are measured, displaying an average position accuracy of 2.80 ± 1.14 mm and orientation accuracy of 1.38 ± 0.61°.
Conclusion
The experimental results demonstrate the feasibility of proposed US system. This work, although restricted to laboratory settings, encourages further exploration of the potential of this technology in clinical practice.
{"title":"Development and evaluation of robot-assisted ultrasound navigation system for pedicle screw placement: An ex-vivo animal validation","authors":"Ruixuan Li, Ayoob Davoodi, Yuyu Cai, Gianni Borghesan, Nicola Cavalcanti, Christoph J. Laux, Mazda Farshad, Fabio Carrillo, Philipp Fürnstahl, Emmanuel Vander Poorten","doi":"10.1002/rcs.2590","DOIUrl":"10.1002/rcs.2590","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Spinal instrumentation with pedicle screw placement (PSP) is an important surgical technique for spinal diseases. Accurate screw trajectory is a prerequisite for PSP. Ultrasound (US) imaging with robot-assisted system forms a non-radiative alternative to provide precise screw trajectory. This study reports on the development and assessment of US navigation for this application.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A robot-assisted US reconstruction was proposed and an automatic CT-to-US registration algorithm was investigated, allowing the registration of screw trajectories. Experiments were conducted on ex-vivo lamb spines to evaluate system performance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>In total, 72 screw trajectories are measured, displaying an average position accuracy of 2.80 ± 1.14 mm and orientation accuracy of 1.38 ± 0.61°.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The experimental results demonstrate the feasibility of proposed US system. This work, although restricted to laboratory settings, encourages further exploration of the potential of this technology in clinical practice.</p>\u0000 </section>\u0000 </div>","PeriodicalId":50311,"journal":{"name":"International Journal of Medical Robotics and Computer Assisted Surgery","volume":"20 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50159508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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