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International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS

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https://www.readbyqxmd.com/read/30238688/robotic-single-site-myomectomy-a-single-center-experience-of-101-consecutive-cases
#1
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 (46.5%) women had multiple myomas, and a median two (1-12) myomas were retrieved...
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
#2
Suraj Pokhrel, Abeer Alsadoon, P W C Prasad, Paul Manoranjan
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 1mm...
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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 8cm 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
#9
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
https://www.readbyqxmd.com/read/30133127/design-and-evaluation-of-an-eye-tracking-support-system-for-the-scrub-nurse
#10
Michael Unger, David Black, Nele M Fischer, Thomas Neumuth, Bernhard Glaser
BACKGROUND: The availability of an increasing number of medical devices in the digital operating room has led to increased interaction demands of the surgical staff. To counteract the risk of bacterial contamination induced by device interactions, touchless interaction techniques are required. Support systems based on eye tracking enable interaction while maintaining sterility and freeing the hands to manipulate surgical instruments. METHODS: A system using eye tracking glasses was developed...
August 22, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30117272/virtual-reality-simulation-of-robotic-transsphenoidal-brain-tumor-resection-evaluating-dynamic-motion-scaling-in-a-master-slave-system
#11
Saúl A Heredia-Pérez, Kanako Harada, Miguel A Padilla-Castañeda, Murilo Marques-Marinho, Jorge A Márquez-Flores, Mamoru Mitsuishi
BACKGROUND: Integrating simulators with robotic surgical procedures could assist in designing and testing of novel robotic control algorithms and further enhance patient-specific pre-operative planning and training for robotic surgeries. METHODS: A virtual reality simulator, developed to perform the transsphenoidal resection of pituitary gland tumours, tested the usability of robotic interfaces and control algorithms. It used position-based dynamics to allow soft-tissue deformation and resection with haptic feedback; dynamic motion scaling control was also incorporated into the simulator...
August 16, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30117266/overlapping-radiofrequency-ablation-planning-and-robot-assisted-needle-insertion-for-large-liver-tumors
#12
Ping Liu, Jing Qin, Bin Duan, Qiong Wang, Xiaoyu Tan, Baoliang Zhao, Peneyra Libao Jonnathan, Chee-Kong Chui, Pheng-Ann Heng
BACKGROUND: We aimed at facilitating percutaneous radiofrequency ablation (RFA) for large tumors with accurate overlapping ablation planning and robot-assisted needle insertion from a single incision port (SIP). METHODS: We developed a personalized and quantitative RFA planning method to obtain multiple needle overlapping ablation planning through a single incision. A robot with a remote center of motion mechanism was designed to perform needle insertions through a SIP according to the planning...
August 16, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30112864/respiratory-motion-estimation-of-the-liver-with-abdominal-motion-as-a-surrogate
#13
Shamel Fahmi, Frank F J Simonis, Momen Abayazid
BACKGROUND: Respiratory-induced motion (RIM) causes uncertainties in localizing hepatic lesions, which could lead to inaccurate targeting during interventions. One approach to mitigate the problem is respiratory motion estimation (RME), in which the liver motion is estimated by measuring external signals called surrogates. METHODS: A learning-based approach has been developed and validated to estimate the RIM of hepatic lesions. External markers placed on the human's abdomen were chosen as surrogates...
August 15, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30105839/water-jet-outer-sheath-with-braided-shape-memory-polymer-tubes-for-upper-gastrointestinal-tract-screening
#14
Linkun Yin, Shuxin Wang, Siyang Zuo
BACKGROUND: Flexible endoscopes have become an important tool for the diagnosis and treatment of gastric cancer. However, there are several limitations to the use of endoscopes in rural areas, including their high cost, poor portability, and unstable platform. METHODS: This paper presents a novel low-cost outer sheath for stomach screening. The sheath uses braided shape memory polymer (SMP) tubes with a water-jet to control the stiffness and bending motion. The insertion part of the prototype is 250 mm long with a maximum outer diameter of 16 mm and incorporates an internal charge-coupled device camera...
August 14, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30105805/review-current-concepts-in-computer-assisted-hip-arthroscopy
#15
REVIEW
Naoki Nakano, Emmanuel Audenaert, Anil Ranawat, Vikas Khanduja
In the last 15 years, hip arthroscopy has become increasingly popular in addressing femoroacetabular impingement (FAI) because of its minimally invasive approach. However, assessing the adequacy of bone resection when correcting FAI can be difficult because visualisation and spatial awareness of the joint are poor. Recent advances in technology in the field of computer-assisted surgery and navigation and robotic surgery in orthopaedics as a resource for preoperative planning and intraoperative assistance have been widely reported...
August 14, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30073759/stacked-sparse-autoencoder-networks-and-statistical-shape-models-for-automatic-staging-of-distal-femur-trochlear-dysplasia
#16
Pietro Cerveri, Antonella Belfatto, Guido Baroni, Alfonso Manzotti
BACKGROUND: The quantitative morphological analysis of the trochlear region in the distal femur and the precise staging of the potential dysplastic condition constitute a key point for the use of personalized treatment options for the patella-femoral joint. In this paper, we integrated statistical shape models (SSM), able to represent the individual morphology of the trochlea by means of a set of parameters and stacked sparse autoencoder (SSPA) networks, which exploit the parameters to discriminate among different levels of abnormalities...
August 2, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30062697/a-novel-remote-controlled-robotic-system-for-cerebrovascular-intervention
#17
Hao Shen, Cheng Wang, Le Xie, Shoujun Zhou, Lixu Gu, Hongzhi Xie
BACKGROUND: In cerebrovascular intervention (CVI), the use of robots has considerable advantages over conventional surgery. This study introduces a remote-controlled robotic system, including the first in vivo proof-of-concept trial. METHODS: The robotic system uses a master-slave control strategy. Omega 3 was selected as the master manipulator, and the slave side executed the procedure of inserting the guidewire and balloon catheter, and angiography. The first in vivo trial was conducted to test whether the guidewire could be successfully moved from a pig's femoral artery to its carotid artery using our robotic system...
July 30, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30058772/improved-surgical-instruments-without-coupled-motion-used-in-minimally-invasive-surgery
#18
Guojun Niu, Bo Pan, Fuhai Zhang, Haibo Feng, Yili Fu
BACKGROUND: Unlike a manual surgical instrument, a surgical instrument used in robot-assisted minimally invasive surgery (MIS) is configured with a wrist to improve flexibility in surgical operation. However, this configuration has a shortcoming that leads to coupled motion between the wrist and end-effector. METHODS: Three methods are presented to eliminate the coupled motion between the wrist and end-effector. The three methods are compared via the decoupled motion characteristic, and the third method is applied to design four surgical instruments...
July 30, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/30003671/motion-modelling-and-error-compensation-of-a-cable-driven-continuum-robot-for-applications-to-minimally-invasive-surgery
#19
Fei Qi, Feng Ju, Dongming Bai, Yaoyao Wang, Bai Chen
BACKGROUND: The continuum robot is widely used in minimally invasive surgery (MIS) because of its flexibility, dexterity and safety. However, because of the friction in the transmission system, backlash, and shape error from nominal kinematics, the tracking accuracy of the continuum robot is low, which may damage the tissues and organs during surgery. A novel error compensation method is presented to improve control. METHODS: Considering the nonlinear friction and coupling effects, the static model of a robot is derived based on the principle of virtual work...
July 13, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29971897/envisioning-robotic-surgery-surgeons-needs-and-views-on-interacting-with-future-technologies-and-interfaces
#20
Iina E Aaltonen, Mikael Wahlström
BACKGROUND: The development of technology in robotic surgery is typically presented from a technical perspective. This study considers the user perspective as an input to the development of technology by exploring potential solutions within and beyond the field of robotic surgery. METHODS: Advanced technological solution concepts were selected based on a technology review and an ethnographic study. Using a future workshop method, these were rated and discussed by a group of surgeons from three perspectives: enhancing operation outcome, user experience and learning in the operating theatre...
July 3, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
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