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International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS

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https://www.readbyqxmd.com/read/30421846/intraoperative-computer-assisted-prediction-of-intraarticular-contact-pressures-in-the-knee-during-high-tibial-osteotomy
#1
Martin Panzica, Ralf Westphal, Musa Citak, Nael Hawi, Emmanouil Liodakis, Thomas Goesling, Christian Krettek, Timo Stuebig, Eduardo M Suero
OBJECTIVES: To develop an accurate intraoperative method to estimate changes in intraarticular contact pressures during high tibial osteotomy (HTO). METHODS: Changes in knee alignment and pressure were monitored in real time in seven cadaver specimens that received HTO. Intraarticular contact pressure (N/mm2 ) in each knee compartment was estimated based on extraarticularly acquired data (leg alignment, correction, ankle tilt) and based on the application of an axial force of half bodyweight (400-450 N)...
November 13, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30414248/organ-mounted-robot-localization-via-function-approximation
#2
Nathan A Wood, David Schwartzman, Michael J Passineau, M Scott Halbreiner, Robert J Moraca, Marco A Zenati, Cameron N Riviere
BACKGROUND: Organ-mounted robots adhere to the surface of a mobile organ as a platform for minimally invasive interventions, providing passive compensation of physiological motion. This approach is beneficial during surgery on the beating heart. Accurate localization in such applications requires accounting for the heartbeat and respiratory motion. Previous work has described methods for modeling quasi-periodic motion of a point and registering to a static preoperative map. The existing techniques, while accurate, require several respiratory cycles to converge...
November 9, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30408324/introducing-robotic-radical-hysterectomy-for-stage-1bi-cervical-cancer-a-prospective-evaluation-of-clinical-and-economic-outcomes-in-a-single-uk-institution
#3
Thomas E J Ind, Chris Marshall, Jenneke Kasius, John Butler, Desmond Barton, Marielle Nobbenhuis
BACKGROUND: We have assessed the impact of introducing robotics for a stage 1b cervical cancer service on laparotomy rates, complications, and costs. METHODS: Data was collected prospectively from 90 consecutive patients who had a radical hysterectomy between 1st April 2010 to 31st December 2017. RESULTS: There were 37 women before the first robotic procedure and 53 after. The laparotomy rate reduced from 75% (9/12) in 2010 to 0% (0/18) in 2017...
November 8, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30397993/legal-regulatory-and-ethical-frameworks-or-standards-for-ai-and-autonomous-robotic-surgery
#4
REVIEW
Shane O'Sullivan, Nathalie Nevejans, Colin Allen, Andrew Blyth, Simon Leonard, Ugo Pagallo, Katharina Holzinger, Andreas Holzinger, Mohammed Imran Sajid, Hutan Ashrafian
BACKGROUND: This paper aims to move the debate forward regarding the potential of AI and autonomous robotic surgery with a particular focus on ethical and legal aspects. METHODS: We conducted a literature search on current and emerging surgical robot technologies, relevant standards and legal systems worldwide. We provide a discussion of unique challenges for robotic surgery faced by proposals made for AI more generally (e.g. Explainable AI) as well as recommendations for developing/improving relevant standards or legal and regulatory frameworks...
November 5, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30346113/hands-on-robot-assisted-fracture-reduction-system-guided-by-a-linear-guidance-constraints-controller-using-a-pre-operatively-planned-goal-pose
#5
REVIEW
Woo Young Kim, Seong Young Ko
BACKGROUND: In robot-assisted fracture reduction systems, the fine alignment of the fractured bone and its path planning are still of issues that need to be resolved. METHODS: A novel linear guidance constraints (LGC) controller guides a robot along the shortest path to align a distal fracture segment and a proximal one. In addition, the surgeon can modify the path whenever s/he wants. RESULTS: When the LGC controller is used in the experiment on a femoral bone model with simulated muscles, the fracture reduction time was measured to be 35...
October 22, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30334328/adoption-of-robotic-technology-in-turkey-a-nationwide-analysis-on-caseload-and-platform-used
#6
Eren Esen, Erman Aytac, Volkan Ozben, Mustafa Bas, Ismail Ahmet Bilgin, Afag Aghayeva, Bilgi Baca, Ismail Hamzaoglu, Tayfun Karahasanoglu
BACKGROUND: Limited data exist regarding adoption of evolving robotic technology in surgery. This study evaluated trends and the current condition of robotic platforms in surgical specialties and general surgical subspecialties. METHODS: Between January 2013 and December 2017, all robotic operations performed in Turkey were included. RESULTS: In the study period, 13 760 robotic operations were performed at 32 hospitals. The median numbers of general surgical procedures were 43and eight cases per hospital and per general surgeon, respectively...
October 17, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30318725/robotic-versus-laparoscopic-sphincter-preserving-total-mesorectal-excision-a-propensity-case-matched-analysis
#7
Pavan Sugoor, Kamlesh Verma, Aditi Chaturvedi, Sadhana Kannan, Ashwin Desouza, Vikas Ostwal, Reena Engineer, Avanish Saklani
BACKGROUND: Robotic total mesorectal excision (R-TME) is expected to have advantages over laparoscopic total mesorectal excision (L-TME). The aim is to compare the short-term outcomes between initial cases of L-TME and RTME. MATERIALS AND METHODS: Among a total of 168 patients assigned to receive either R-TME (n = 84) or L-TME (n = 84), short term outcomes were compared between the groups by 1:1 propensity score matching of eight variables. RESULTS: The inter-sphincteric resection rate (42...
October 14, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30315678/robotic-assisted-laparoscopic-cerclage-a-systematic-review
#8
REVIEW
Christos Iavazzo, Evelyn Eleni Minis, Ioannis D Gkegkes
INTRODUCTION: The gold standard in the management of cervical incompetence is cerclage via vaginal approach. Minimally invasive techniques, such as robotic, have been also described. MATERIALS AND METHODS: A systematic search was performed in PubMed and Scopus, searching evidence on robotic assisted laparoscopic cerclage in both pregnant and non pregnant women. RESULTS: Sixty-four patients were included in this study. Cervical insufficiency, failure of transvaginal cerclage, and short cervix were the most frequent indications for robotic assisted cerclage...
October 13, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30281892/an-automatic-skill-evaluation-framework-for-robotic-surgery-training
#9
Wenjia Peng, Yuan Xing, Ruida Liu, Jinhua Li, Zemin Zhang
BACKGROUND: To provide feedback to surgeons in robotic surgery training, many surgical skill evaluation methods have been developed. However, they hardly focus on the performance of the surgical motion segments. This paper proposes a method of specifying a trainee's skill weakness in the surgical training. METHODS: This paper proposed an automatic skill evaluation framework by comparing the trainees' operations with the template operation in each surgical motion segment, which is mainly based on dynamic time warping (DTW) and continuous hidden Markov model (CHMM)...
October 3, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30265760/open-versus-robotic-partial-nephrectomy-a-systematic-review-and-meta-analysis-of-contemporary-studies
#10
REVIEW
Sheng-Han Tsai, Ping-Tao Tseng, Benjamin A Sherer, Yi-Chen Lai, Pao-Yen Lin, Ching-Kuan Wu, Marshall L Stoller
OBJECTIVES: To compare perioperative outcomes of robotic-assisted partial nephrectomy (RaPN) with open partial nephrectomy (OPN). METHODS: Systematically search through PubMed, Embase, ClinicalKey, Cochrane Library, ProQuest, ScienceDirect, Web of Science, and ClinicalTrials.gov for eligible studies was performed to April 11th , 2018. A meta-analysis was conducted for studies comparing RaPN and OPN. Confounding variables were assessed by meta-regression or subgroup analysis...
September 28, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30248231/transradial-prostheses-trends-in-development-of-hardware-and-control-systems
#11
REVIEW
C L Semasinghe, D G Kanishka Madusanka, R K P S Ranaweera, R A R C Gopura
Prosthesis is a wearable device which intends to provide the functionality and/or appearance of a missing body part. In the case of trans-radial prostheses the wearer or the trans-radial amputee is fitted with an artificial wrist and a hand which is either mechanically or electro-mechanically operated. Main aim is to enable the wearer to perform activities of daily living with minimal external assistance. In this review paper, hardware systems of state-of-the-art trans-radial prostheses have been briefly discussed...
September 24, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30238688/robotic-single-site-myomectomy-a-single-center-experience-of-101-consecutive-cases
#12
Miseon Kim, Mi Kyoung Kim, Mi-La Kim, Yong Wook Jung, Bo Seong Yun, Seok Ju Seong
BACKGROUND: To evaluate the feasibility and clinical outcomes of robotic single-site myomectomy (RSSM) for uterine myoma. METHODS: Medical records of 101 consecutive women who underwent RSSM were retrospectively reviewed, and patient characteristics and surgical outcomes were evaluated. The surgical outcomes were compared by the phase in learning curve (early phase of <10 cases vs late phase of ≥10 cases) and time flow. RESULTS: A total of 47 (46...
September 19, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30218540/a-novel-augmented-reality-ar-scheme-for-knee-replacement-surgery-by-considering-cutting-error-accuracy
#13
Suraj Pokhrel, Abeer Alsadoon, P W C Prasad, Manoranjan Paul
BACKGROUND: Augmented reality (AR) surgery has not been successfully implemented in knee replacement surgery due to the negative effect of cutting errors. This research aims to decrease the cutting error to reduce the chronic pain after knee replacement. METHODOLOGY: The proposed system consists of a volume subtraction technique that considers the history of the area that has been cut and measures it against the target shape. RESULTS: Results minimized the cutting error by about 1 mm...
September 15, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30168885/fine-orientation-control-of-an-insertable-robotic-camera-system-for-single-incision-laparoscopic-surgery
#14
Reza Yazdanpanah Abdolmalaki, Xiaolong Liu, Gregory J Mancini, Jindong Tan
This paper demonstrates an insertable magnetic actuated robotic camera system with two-degree-of-freedom (2-DoF) orientation control for single incision laparoscopic surgery. The camera system design consists of an external magnetic control unit and a fully insertable camera capsule. This system features a unified mechanism for anchoring, navigating, and rotating the insertable camera capsule by externally generated rotational magnetic field from the control unit. The motor-free camera capsule is encapsulated in an one-piece housing with two ring-shaped tail-end magnets and one cylindrical central magnet...
August 31, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30168639/projector-based-augmented-reality-system-for-interventional-visualization-inside-mri-scanners
#15
André Mewes, Florian Heinrich, Urte Kägebein, Bennet Hensen, Frank Wacker, Christian Hansen
BACKGROUND: Navigation support in interventional magnetic resonance imaging (MRI) is separated from the operating field, which makes it difficult to interpret positions and orientations and to coordinate the necessary hand movements. METHODS: We developed a projector-based augmented reality system to enable visual navigation of tracked instruments on pre-planned paths and visualization of risk structures directly on the patient inside the MRI bore. To assess the accuracy of the system, a user study was carried out with clinicians in a needle navigation test scenario...
August 31, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30157310/mri-guided-frameless-biopsy-robotic-system-with-the-inclusion-of-unfocused-ultrasound-transducer-for-brain-cancer-ablation
#16
Marinos Giannakou, Christos Yiallouras, Georgios Menikou, Cleanthis Ioannides, Christakis Damianou
BACKGROUND: A magnetic resonance image (MRI) guided robotic system dedicated for brain biopsy was developed. The robotic system carries a biopsy needle and a small rectangular unfocused, single element, planar ultrasonic transducer which can be potentially utilized to ablate small and localized brain cancer. MATERIALS AND METHODS: The robotic device includes six computer-controlled axes. An agar-based phantom was developed which included an olive that mimics brain target...
August 29, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30155973/a-tensor-mass-method-based-vascular-model-and-its-performance-evaluation-for-interventional-surgery-virtual-reality-simulator
#17
Shuxiang Guo, Xiaojuan Cai, Baofeng Gao
BACKGROUND: Physics-based vascular modelling is an essential issue to be addressed in the development of the endovascular interventional surgery training system, which helps to shorten the training period of novice surgeons to obtain dexterous skills of surgical operation. METHODS: A blood vessel model based on tensor-mass method (TMM) is formulated and implemented in this context. A multimodel representation is adopted for the vascular model, including the mechanical, visual, and collision model...
August 28, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30152081/intraocular-robotic-interventional-surgical-system-iriss-semi-automated-oct-guided-cataract-removal
#18
Cheng-Wei Chen, Yu-Hsiu Lee, Matthew J Gerber, Harrison Cheng, Yan-Chao Yang, Andrea Govetto, Anibal Andrés Francone, Stefano Soatto, Warren S Grundfest, Jean-Pierre Hubschman, Tsu-Chin Tsao
BACKGROUND: With the development of laser-assisted platforms, the outcomes of cataract surgery have been improved by automating several procedures. The cataract-extraction step continues to be manually performed, but due to deficiencies in sensing capabilities, surgical complications such as posterior capsule rupture and incomplete cataract removal remain. METHODS: An optical coherence tomography (OCT) system is integrated into our intraocular robotic interventional surgical system (IRISS) robot...
August 28, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30141267/robotic-transanal-microsurgery-for-high-early-rectal-neoplasia-t0-t1-n0-lesions-case-series-of-10-patients
#19
Suzanne Arnott, Matthew Skancke, Vincent Obias
PURPOSE/BACKGROUND: In 2017, an estimated 39 910 people will receive a new diagnosis of rectal cancer. Current surgical guidelines limit transanal excision of early rectal neoplasia to 8 cm from the anal verge. We report that R0 resection of higher rectal cancers is possible using transanal robotic microsurgery. METHODS/INTERVENTIONS: Ten cases of robotic assisted transanal surgery for early stage disease (T0-T1, N0) between 2013 and 2016 were reviewed. RESULTS/OUTCOMES: All cases were diagnosed preoperatively with colonoscopy, and the average distance from the anal verge was 11...
August 23, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30141263/robotic-cross-folded-u-configuration-intracorporeal-ileal-neobladder-for-muscle-invasive-bladder-cancer-initial-experience-and-functional-outcomes
#20
Takuya Koie, Chikara Ohyama, Takahiro Yoneyama, Hirotaka Nagasaka, Hayato Yamamoto, Atsushi Imai, Shingo Hatakeyama, Yasuhiro Hashimoto
BACKGROUND: This study compared the surgical and urinary functional outcomes in patients with muscle-invasive bladder cancer (MIBC) who underwent robot-assisted radical cystectomy (RARC) followed by intracorporeal ileal neobladder reconstruction (ICNB) to those in patients who underwent minimum incision endoscopic radical cystectomy (MIE-RC) followed by extracorporeal ileal neobladder reconstruction (ECNB). MATERIALS AND METHODS: This study reviewed the clinical records of 153 consecutive MIBC patients who underwent neoadjuvant chemotherapy followed by radical cystectomy and ileal neobladder reconstruction...
August 23, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
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