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Feasibility of proton dosimetry overriding planning CT with daily CBCT elaborated through generative artificial intelligence tools Comput. Assist. Surg. (IF 2.1) Pub Date : 2024-03-11 Matteo Rossi, Gabriele Belotti, Luca Mainardi, Guido Baroni, Pietro Cerveri
Radiotherapy commonly utilizes cone beam computed tomography (CBCT) for patient positioning and treatment monitoring. CBCT is deemed to be secure for patients, making it suitable for the delivery o...
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Ultrasound-based 3D bone modelling in computer assisted orthopedic surgery – a review and future challenges Comput. Assist. Surg. (IF 2.1) Pub Date : 2024-01-23 Benjamin Hohlmann, Peter Broessner, Klaus Radermacher
Computer-assisted orthopedic surgery requires precise representations of bone surfaces. To date, computed tomography constitutes the gold standard, but comes with a number of limitations, including...
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Research on augmented reality navigation of in vitro fenestration of stent-graft based on deep learning and virtual-real registration Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-12-07 Fengfeng He, Xiaoyu Qi, Qingmin Feng, Qiang Zhang, Ning Pan, Chao Yang, Shenglin Liu
In vitro fenestration of stent-graft (IVFS) demands high-precision navigation methods to achieve optimal surgical outcomes. This study aims to propose an augmented reality (AR) navigation method fo...
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Biomechanical behavior of the three-dimensionally printed surgical plates for mandibular defect reconstruction: a finite element analysis Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-11-27 Chao-Fei Wang, Shuo Liu, Lei-Hao Hu, Yao Yu, Xin Peng, Wen-Bo Zhang
The aim of the study was to investigate the biomechanical behavior of three-dimensionally (3D)-printed surgical plates used for mandibular defect reconstruction, compare them with conventional surg...
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Performance assessment of surgical tracking systems based on statistical process control and longitudinal QA Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-11-09 I. Butz, M. Fernandez, A. Uneri, N. Theodore, W. S. Anderson, J. H. Siewerdsen
A system for performance assessment and quality assurance (QA) of surgical trackers is reported based on principles of geometric accuracy and statistical process control (SPC) for routine longitudi...
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Virtual surgical planning in craniomaxillofacial surgery: a structured review Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-10-20 Kaye Velarde, Rentor Cafino, Armando Isla Jr., Karen Mae Ty, Xavier-Lewis Palmer, Lucas Potter, Larry Nadorra, Luchin Valrian Pueblos, Lemuel Clark Velasco
Craniomaxillofacial (CMF) surgery is a challenging and very demanding field that involves the treatment of congenital and acquired conditions of the face and head. Due to the complexity of the head...
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Improving alignment in total knee arthroplasty: a cadaveric assessment of a surgical navigation tool with computed tomography imaging Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-10-17 Kelly A. Foley, Ran Schwarzkopf, Brian M. Culp, Michael P. Bradley, Jeffrey M. Muir, Emily I. McIntosh
To investigate the accuracy of an imageless, optical surgical navigation tool to assist with femoral and tibial bone cuts performed during TKA.Six board-certified orthopedic surgeons participated i...
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Analysis of influence of surgical instruments on accuracy of magnetic navigation system for craniofacial surgery robots Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-05-31 Mengzhe Sun, Lan Rao, Cunliang Zhang, Peiming Zhang, Gang Chai
Abstract IntroductionIn craniofacial surgery, magnetic navigation systems can effectively extend the doctor’s limited visual range, improve their surgical precision, shorten the operation time, and reduce the incidence of surgical complications. Owing to the ease of magnetic navigation, the accuracy of the magnetic navigation system is affected by various equipment in the operating room. Therefore
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An automated optimization pipeline for clinical-grade computer-assisted planning of high tibial osteotomies under consideration of weight-bearing Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-05-16 Tabitha Roth, Bastian Sigrist, Matthias Wieczorek, Nathanael Schilling, Sandro Hodel, Jonas Walker, Mario Somm, Wolfgang Wein, Reto Sutter, Lazaros Vlachopoulos, Jess G. Snedeker, Sandro F. Fucentese, Philipp Fürnstahl, Fabio Carrillo
Abstract 3D preoperative planning for high tibial osteotomies (HTO) has increasingly replaced 2D planning but is complex, time-consuming and therefore expensive. Several interdependent clinical objectives and constraints have to be considered, which often requires multiple rounds of revisions between surgeons and biomedical engineers. We therefore developed an automated preoperative planning pipeline
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Partial talar replacement with a novel 3D printed prosthesis Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-04-18 Yidong Cui, Bin Chen, Gang Wang, Juntao Wang, Ben Liu, Lei Zhu, Qingjia Xu
Abstract Background The treatment of talus avascular necrosis (AVN) is challenging owing to its unique anatomical features. Despite decades of studies, till date, there is no appropriate treatment for talus AVN. Therefore, surgeons need to develop newer surgical methods. In the present study we introduce a new surgical method, 3D printed partial talus replacement (PTR), to treat partial talus necrosis
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To explore the change of motor cognitive function in pituitary tumor rats after operation Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-04-06 Hu Chang-Wei, Ya-Bing Li, Xiao-Yong Han, Gang-Feng Yin, Xi-Rui Wang
Abstract To study the changes of motor and cognitive function of pituitary tumor rats after the operation. Methods: The experiment was divided into three groups: control group, model group and operation group (30 animals for each group). Female Fischer344 rats were selected. Model group rats were subcutaneously embedded with 10 mg estrogen sustained-release pump to induce a pituitary tumor model, and
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Recent research advances on simulation modeling of temperature distribution in microwave ablation of lung tumors Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-04-05 Ju Liu, Hongjian Gao, Jinying Wang, Yuezheng He, Xinyi Lu, Zhigang Cheng, Shuicai Wu
Abstract Lung tumor is the first malignant tumor with the highest mortality, but only no more than one-third of patients can be treated by surgical resection. Microwave ablation (MWA) has become a new adjuvant therapeutic mean for lung tumors because of its low trauma, short treatment time, large ablation volume and wide application range. However, the treatment parameters of MWA, such as input power
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An innovative virtual reality training tool for the pre-hospital treatment of cranialmaxillofacial trauma Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-03-28 Jin Lu, Ao Leng, Ye Zhou, Weihao Zhou, Jianfeng Luo, Xiaojun Chen, Xiangdong Qi
Abstract Virtual reality (VR) surgery using the High Technology Computer Corporation Very Immersive Virtual Experience professional 2(HTC VIVE Pro2) suite is a multi-sensory, holistic surgical training experience. A multimedia combination including videos and three-dimensional interaction in VR has been developed to enable trainees to experience a realistic battlefield environment. The innovation allows
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Robotic colorectal surgery: quality assessment of patient information available on the internet using webscraping Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-03-11 Anas Taha, Stephanie Taha-Mehlitz, Laura Bach, Vincent Ochs, Ovunc Bardakcioglu, Michael D. Honaker, Philippe C. Cattin
Abstract The primary goal of this study is to assess current patient information available on the internet concerning robotic colorectal surgery. Acquiring this information will aid in patients understanding of robotic colorectal surgery. Data was acquired through a web-scraping algorithm. The algorithm used two Python packages: Beautiful Soup and Selenium. The long-chain keywords incorporated into
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Application of 3D printing navigation system in pediatric epiphyseal complex lesion surgery Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-03-01 Haoqi Cai, Haiqing Cai, Zhigang Wang
Abstract To investigate 3D printing navigation system in pediatric epiphyseal complex lesion surgery. 10 children with epiphyseal complex lesions of the lower limb were recruited. After collecting imaging data such as CT and MRI in children with epiphyseal complex lesions of the lower limb, a three-dimensional model of bone was constructed using 3D printed computer modeling technologies for the localization
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Total knee arthroplasty using a computerized assisted stereotaxic navigation system with bluetooth communication in obese patients - A randomized controlled study Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-01-13 Gurion Rivkin, Leonid Kandel, Itay Perets, Tamir Tsohar, Tarek Nasrawy, Meir Liebergall
Abstract Correct mechanical alignment (180° hip-knee-angle (HKA)) may be difficult to obtain on a consistent basis in obese patients. This is a randomized controlled study comparing the post-operative coronal alignment in obese patients between two surgical total knee arthroplasty (TKA) techniques – conventional and computer assisted navigation. The primary outcome was the post-operative HKA. A total
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Application of wireless thoracoscopy in thoracic surgery Comput. Assist. Surg. (IF 2.1) Pub Date : 2023-01-09 Ning Xin, Xiaoyu Wu, Junjie Hu, Rongqiang Wei, Zihao Chen, Zhifei Xu, Kenan Huang, Hua Tang
Abstract To explore the safety and feasibility of wireless thoracoscope in thoracic surgery. A retrospective analysis was made of all the clinical data of 90 patients with thoracoscope lung resection, from April to August 2021, Shanghai changzheng hospital thoracic minimally invasive center. Compared the thoracoscope preparation time, picture resolution, picture delay, surgeon comfort level, assistant
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Review of research on path planning and control methods of flexible steerable needle puncture robot Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-09-02 Kaiyu Wu, Bing Li, Yongde Zhang, Xuesong Dai
Abstract In the field of minimally invasive interventional therapy, the related research on the soft tissue puncture robot and its technology based on the flexible steerable needle as a research hot topic at present, and it has been developed rapidly in the past ten years. In order to better understand the development status of the flexible steerable needle puncture (FSNP) robot and provide reference
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A trial to visualize perforators images from CTA with a tablet device: experience of operating on minipigs Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-08-05 Hisato Konoeda, Miyuki Uematsu, Nie Jumxiao, Ken Masamune, Hiroyuki Sakurai
Abstract A reliable method for precise perforator mapping can be extremely valuable in perforator flap surgery. In this study, we attempted to map perforator location using 3-dimensional computed tomography angiography (CTA), a newly developed application, and a tablet device. Preliminary examinations to test the device were conducted in mini-pigs. We used 5 female mini-pigs. Preoperative imaging of
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Comparison of computer-assisted navigated technology and conventional technology in high tibial osteotomy (HTO): a meta-analysis Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-07-26 Keteng Xu, Weichao Wang, Qin Wang, Jun Sun, Chen Fang, Yusheng Sun, Tulong Shi, Xun Wu, Qing Yan
Abstract Background Though some studies have reported navigated high tibial osteotomy (HTO) is a useful procedure to correct knee deformity. There is still great controversy whether navigated HTO can achieve better accuracy of limb alignment and greater clinical outcomes. Current meta-analysis was conducted to investigate whether better radiographic outcomes and clinical outcomes could be acquired
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The design and application of an individualized 3D printing assisted guide plates in assisting sacroiliac screws insertion Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-07-22 Mu-Rong You, Zhi-Qiang Fan, Hai-Min Ye, Zhe Wang, Chun-Hua Zou, Xie-Ping Dong
Abstract Objective Currently, the sacroiliac screws insertion still faces several challenges in the fixation of pelvic and acetabular injuries. This study was aimed to design a personalized three-dimensional (3D) printing assisted guide plates to assist sacroiliac screws insertion, so as to provide a reference for further clinical applications. Methods Eight pelvic specimens (5 males and 3 females)
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Surgical declarative knowledge learning: concept and acceptability study Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-06-21 A. Huaulmé, G. Dardenne, B. Labbe, M. Gelin, C. Chesneau, J. M. Diverrez, L. Riffaud, P. Jannin
Abstract Improving surgical training by means of technology assistance is an important challenge that aims to directly impact surgical quality. Surgical training includes the acquisition of two categories of knowledge: declarative knowledge (i.e. ‘knowing what’) and procedural knowledge (i.e. ‘knowing how’). It is essential to acquire both before performing any particular surgery. There are currently
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Corrective osteotomy for complex tibial deformity in a patient with hereditary vitamin D-resistant hypophosphatemic rickets (HVDRR) using CT-based navigation system and 3D printed osteotomy model Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-06-21 Masatoshi Oba, Hyonmin Choe, Shunsuke Yamada, Yuto Gondai, Koki Abe, Taro Tezuka, Hiroyuki Ike, Yutaka Inaba
Abstract Planning a three-dimensional (3D) osteotomy using computed tomography (CT) data is useful especially in cases with complex deformities. Furthermore, CT-based navigation system allows the preoperative virtual planning to be replicated in actual surgery. However, one disadvantage when using navigation systems is that when osteotomies are performed on tracker-attached bone, the bone fragments
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A shape-partitioned statistical shape model for highly deformed femurs using X-ray images Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-06-05 Jongho Chien, Ho-Gun Ha, Seongpung Lee, Jaesung Hong
Abstract To develop a patient-specific 3 D reconstruction of a femur modeled using the statistical shape model (SSM) and X-ray images, it is assumed that the target shape is not outside the range of variations allowed by the SSM built from a training dataset. We propose the shape-partitioned statistical shape model (SPSSM) to cover significant variations in the target shape. This model can divide a
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Tibial component rotation alters soft tissue balance in a cruciate retaining total knee arthroplasty Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-06-01 Gavin Clark, Mark Quinn, Jerome Murgier, David Wood
Abstract Our aim was to understand whether using different landmarks for tibial component rotation influenced articular contact pressures in a balanced total knee arthroplasty (TKA). Twelve patients underwent TKA (Triathlon CR, Stryker Inc., Mahwah, NJ) and contact pressures were assessed using a wireless sensor. Robotic arm assisted TKA using a functional alignment technique was performed, with balanced
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Dimensional accuracy of TKA cut surfaces with an active robotic system Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-05-30 Stefan Kreuzer, Abheetinder Brar, Valentina Campanelli
Abstract This is a study of the dimensional accuracy of the bone cut surfaces in robotic TKA. One surgeon performed robotic TKA on four cadaveric knees. A novel technique was developed for measuring the dimensional accuracy of both the femoral and tibial cut surfaces. CT scans were used to create a pre-operative plan and generate nominal cut surfaces on the 3D bone model. After TKA, the cut surfaces
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Deep learning for assessing liver fibrosis based on acoustic nonlinearity maps: an in vivo study of rabbits Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-05-13 Jinzhen Song, Hao Yin, Jianbo Huang, Zhenru Wu, Chenchen Wei, Tingting Qiu, Yan Luo
Abstract This study aimed to assess liver fibrosis in rabbits by deep learning models based on acoustic nonlinearity maps. Injection of carbon tetrachloride was used to induce liver fibrosis. Acoustic nonlinearity maps, which were built by data of echo signals, were used as input data for deep learning model. Convolutional neural network (CNN), CNN combined with support vector machine (SVM), CNN combined
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Optimal definitions for computing HKA angle in caos: an in-vitro comparison study Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-05-13 Guillaume Dardenne, Bhushan Borotikar, Hoel Letissier, Ahmed Zemirline, Eric Stindel
Abstract The goal of this study was to assess and compare the precision and accuracy of nine and seven methods usually used in Computer Assisted Orthopedic Surgery (CAOS) to estimate respectively the Knee Center (KC) and the Frontal Plane (FP) for the determination of the HKA angle (HKAA). An in-vitro experiment has been realized on thirteen cadaveric lower limbs. A CAOS software application was developed
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Effect of image-guided systems in phacoemulsification with intraocular lens (IOL) implantation: a systematic review and meta-analysis Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-03-21 Yang Su, Min Fu, Yifan Chen, Rui Qiao, Guo-Guo Yi
Abstract Purpose To explore the effect of image-guided systems in phacoemulsification with intraocular lens (IOL) implantation. Methods We searched Pubmed, Embase and China National Knowledge Infrastructure (inception to January 20, 2021). Two researchers extracted data and assessed paper quality independently. Uncorrected distance visual acuity (UDVA) before and after surgery, best corrected visual
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Bias in machine learning for computer-assisted surgery and medical image processing Comput. Assist. Surg. (IF 2.1) Pub Date : 2022-02-08 John S. H. Baxter, Pierre Jannin
(2022). Bias in machine learning for computer-assisted surgery and medical image processing. Computer Assisted Surgery: Vol. 27, No. 1, pp. 1-3.
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Radiomics in surgical oncology: applications and challenges Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-12-13 Travis L. Williams, Lily V. Saadat, Mithat Gonen, Alice Wei, Richard K. G. Do, Amber L. Simpson
Abstract Surgery is a curative treatment option for many patients with malignant tumors. Increased attention has focused on the combination of surgery with chemotherapy, as multimodality treatment has been associated with promising results in certain cancer types. Despite these data, there remains clinical equipoise on optimal timing and patient selection for neoadjuvant or adjuvant strategies. Radiomics
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A systematic review of common landmarks in navigated endoscopic sinus surgery (NESS) Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-10-27 Tomislav Baudoin, Tomislav Gregurić, Filip Bacan, Boris Jelavić, Goran Geber, Andro Košec
Abstract Background Navigation brought about a tremendous improvement in functional endoscopic sinus surgery (FESS). When upgraded accordingly, FESS becomes navigated endoscopic sinus surgery (NESS). Indications for intraoperative use of navigation can be broadened to almost any FESS case. NESS in advanced sinus surgery is currently still not used routinely and requires systematic practice guidelines
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Comparison of the accuracies of computed tomography-based navigation and image-free navigation for acetabular cup insertion in total hip arthroplasty in the lateral decubitus position Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-08-02
Abstract Image-free navigation has been proven as reliable as that using computed tomography (CT) in positioning the acetabular cup in total hip arthroplasty (THA), but previous studies rarely included hip dysplasia cases. The purpose of the present study was to determine the accuracies of CT-based navigation and image-free navigation for acetabular cup insertion, including hip dysplasia cases. Sixty-three
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Challenges in surgical video annotation Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-06-14 Thomas M. Ward, Danyal M. Fer, Yutong Ban, Guy Rosman, Ozanan R. Meireles, Daniel A. Hashimoto
Abstract Annotation of surgical video is important for establishing ground truth in surgical data science endeavors that involve computer vision. With the growth of the field over the last decade, several challenges have been identified in annotating spatial, temporal, and clinical elements of surgical video as well as challenges in selecting annotators. In reviewing current challenges, we provide
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Enhancing perioperative landmark detection during sacroiliac joint fusion in patients suffering from low back pain Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-05-03 Bas Schippers, Edsko Hekman, Sven van Helden, Martijn Boomsma, Jochen van Osch, Robert Nijveldt
Abstract Over the past decade, minimally invasive sacroiliac joint (SIJ) fusion has become an effective treatment for patients suffering from low back pain (LBP) originating from the SIJ. Perioperative C-arm fluoroscopy-assisted surgical navigation during SIJ fusion remains challenging due to the lack of 3D spatial information. This study developed and assessed a 3D CT/2D fluoroscopy integration approach
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Accuracy of cervical pedicle screw placement with four different designs of rapid prototyping navigation templates: a human cadaveric study Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-04-30 Zhijing Wen, Teng Lu, Xijing He, Jialiang Li, Quanjin Zang, Yibin Wang, Zhengchao Gao, Pengzhen Gu
Abstract Purpose Due to the high perforation rate of cervical pedicle screw placement, we have designed four different types of rapid prototyping navigation templates to enhance the accuracy of cervical pedicle screw placement. Methods Fifteen human cadaveric cervical spines from C2 to C7 were randomly divided into five groups, with three specimens in each group. The diameter of pedicle screw used
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Using standard X-ray images to create 3D digital bone models and patient-matched guides for aiding implant positioning and sizing in total knee arthroplasty Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-03-15 Vincent Massé, Raju S., Ghate
Abstract X-Atlas™ is a new imaging technology intended to advance the state of the art in patient-specific instrumentation. It uses standard AP and lateral radiographs instead of CT or MRI scans to create 3D bone models, which can be used to perform pre-operative surgical planning and fabricate TKA personalized guides. The aim of this study was to validate X-Atlas™ and evaluate the accuracy of personalized
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Optimization of radiation settings for angiography using 3D fluoroscopy for imaging of intracranial aneurysms Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-03-09 Thomas Linsenmann, Alexander März, Vera Duffner, Christian Stetter, Judith Weiland, Thomas Westermaier
Abstract Mobile 3D fluoroscopes have become increasingly available in neurosurgical operating rooms. We recently reported its use for imaging cerebral vascular malformations and aneurysms. This study was conducted to evaluate various radiation settings for the imaging of cerebral aneurysms before and after surgical occlusion. Eighteen patients with cerebral aneurysms with the indication for surgical
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Three-dimension correction of Charcot ankle deformity with a titanium implant Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-02-24 Gang Wang, Junhao Lin, Hong Zhang, Yantao Pei, Lei Zhu, Qingjia Xu
Abstract Background Charcot neuroarthropathy of the ankle is an extremely challenging clinical dilemma, and its surgical management can be highly complicated. The goal of Charcot ankle treatment is to to restore a plantigrade and stable foot, and thus to avoid ulceration with subsequent infection. This report aims to introduce a method of correcting ankle deformity using a novel 3D printing technique
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A real time image-guided reposition system for the loosed bone graft in orthognathic surgery Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-01-27 Xiaojun Chen, Yang Li, Lu Xu, Yi Sun, Constantinus Politis, Xiaoyi Jiang
Abstract In traditional orthognathic surgery, the dental splint technique is typically used to assist surgeons to reposition the maxilla or mandible. However, the design and manufacturing of dental splints is time-consuming and labor-intensive, and the templates may not applicable for some complicated cases due to the anatomic intricacies in the maxillofacial region. During recent years, computer-aided
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Improved procedure for Brown’s Class III maxillary reconstruction with composite deep circumflex iliac artery flap using computer-assisted technique Comput. Assist. Surg. (IF 2.1) Pub Date : 2021-01-27 Wen-Bo Zhang, Hui Yuh Soh, Yao Yu, Chuan-Bin Guo, Guang-Yan Yu, Xin Peng
Abstract Reconstruction of Brown’s Class III maxillary defect can be challenging due to the complex geometry of maxilla. We aimed to introduce an improved method for maxillary reconstruction with a composite deep circumflex iliac artery (DCIA) flap aided by virtual surgical planning and intraoperative navigation. A 27-year-old woman diagnosed with left maxillary fibromyxoma was admitted to our institution
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Construction of a knowledge graph for diabetes complications from expert-reviewed clinical evidences Comput. Assist. Surg. (IF 2.1) Pub Date : 2020-12-04 Lei Wang, Huimin Xie, Wentao Han, Xiao Yang, Lili Shi, Jiancheng Dong, Kui Jiang, Huiqun Wu
Abstract A knowledge graph is a structured representation of data that can express entity and relational knowledge. More attention has been paid to the study of a clinical knowledge graph, especially in the field of chronic diseases. However, knowledge graph construction is based mainly on electronic medical records and other data sources, and the authority of the constructed knowledge graph presents
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Image-based laparoscopic tool detection and tracking using convolutional neural networks: a review of the literature. Comput. Assist. Surg. (IF 2.1) Pub Date : 2020-09-04 Congmin Yang,Zijian Zhao,Sanyuan Hu
Intraoperative detection and tracking of minimally invasive instruments is a prerequisite for computer- and robotic-assisted surgery. Since additional hardware, such as tracking systems or the robot encoders, are cumbersome and lack accuracy, surgical vision is evolving as a promising technique to detect and track the instruments using only endoscopic images. The present paper presents a review of
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Tactics: an open-source platform for planning, simulating and validating stereotactic surgery. Comput. Assist. Surg. (IF 2.1) Pub Date : 2020-05-13 David S P Adair,Keith S Gomes,Zelma H T Kiss,David G Gobbi,Yves P Starreveld
Frame-based stereotaxy is widely used for planning and implanting deep-brain electrodes. In 2013, as part of a clinical study on deep-brain stimulation for treatment-resistant depression, our group identified a need for software to simulate and plan stereotactic procedures. Shortcomings in extant commercial systems encouraged us to develop Tactics. Tactics is purpose-designed for frame-based stereotactic
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Unsupervised binocular depth prediction network for laparoscopic surgery. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-05-31 Ke Xu,Zhiyong Chen,Fucang Jia
Minimally invasive surgery (MIS) is characterized by less trauma, shorter recovery time, and lower postoperative infection rate. The two-dimensional (2D) laparoscopic imaging lacks depth perception and does not provide quantitative depth information, thereby limiting precise and complex surgical operations. Three-dimensional (3D) laparoscopic imaging provides surgeons depth perception. This study aims
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Physiological interference reduction for near infrared spectroscopy brain activity measurement based on recursive least squares adaptive filtering and least squares support vector machines. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-05-31 Xin Liu,Yan Zhang,Dan Liu,Qisong Wang,Ou Bai,Jinwei Sun,Peter Rolfe
Near infrared spectroscopy is the promising and noninvasive technique that can be used to detect the brain functional activation by monitoring the concentration alternations in the haemodynamic concentration. The acquired NIRS signals are commonly contaminated by physiological interference caused by breathing and cardiac contraction. Though the adaptive filtering method with least mean squares algorithm
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A non-contact interactive stereo display system for exploring human anatomy. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-04-02 Ziteng Liu,Wenpeng Gao,Yu Sun,Yixian Su,Jiahua Zhu,Lubing Xu,Yili Fu
Stereoscopic display based on Virtual Reality (VR) can facilitate doctors to observe the 3 D virtual anatomical models with the depth cues, assist them in intuitively investigating the spatial relationship between different anatomical structures without mental imagination. However, there is few input device can be used in controlling the virtual anatomical models in the sterile operating room. This
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Super resolution reconstruction for medical image based on adaptive multi-dictionary learning and structural self-similarity. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-03-01 Fang Zhang,Yue Wu,Zhitao Xiao,Lei Geng,Jun Wu,Jia Wen,Wen Wang,Ping Liu
To improve the quality of the super-resolution (SR) reconstructed medical images, an improved adaptive multi-dictionary learning method is proposed, which uses the combined information of medical image itself and the natural images database. In training dictionary section, it uses the upper layer images of pyramid which are generated by the self-similarity of low resolution images. In reconstruction
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A targeting method for robot-assisted percutaneous needle placement under fluoroscopy guidance. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-02-02 Zhonghao Han,Keyi Yu,Lei Hu,Weishi Li,Huilin Yang,Minfeng Gan,Na Guo,Biao Yang,Hongsheng Liu,Yuhan Wang
BACKGROUND Minimally invasive procedures are rapidly growing in popularity thanks to advancements in medical robots, visual navigation and space registration techniques. This paper presents a precise and efficient targeting method for robot-assisted percutaneous needle placement under C-arm fluoroscopy. METHOD A special end-effector was constructed to perform fluoroscopy calibration and robot to image-space
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Minimally invasive surgical techniques for the therapy of far lateral disc herniation in middle-aged and elderly patients. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-01-29 Weijian Ren,Yu Chen,Liangbi Xiang
To examine the clinical results of different minimally invasive techniques for the therapy of far lateral disc herniation in middle-aged and elderly patients. Percutaneous endoscopic lumbar discectomy, MIS-TLIF combined with contralateral translaminar screw and MIS-TLIF combined with bilateral pedicle screws were evaluated via a retrospective chart review. Data from 74 consecutive middle-aged and elderly
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The role of the precuneus and posterior cingulate cortex in the neural routes to action. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-01-28 Zijian Wang,Fei Liu,Yaoru Sun,Jie Li,Fang Wang,Zheng Lu
Neural substrates of action to the object or this specific direct route, however, remain unclear, especially for the connection from the visual pathway to the motor cortex. The study examined this issue by conducting an fMRI experiment, in which two action generation tasks involving pictures of real objects (PA) and the object's nouns (NA) were used, with pictures naming (PN) and covert noun reading
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A sensorless force-feedback system for robot-assisted laparoscopic surgery. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-01-28 Baoliang Zhao,Carl A Nelson
The existing surgical robots for laparoscopic surgery offer no or limited force feedback, and there are many problems for the traditional sensor-based solutions. This paper builds a teleoperation surgical system and validates the effectiveness of sensorless force feedback. The tool-tissue interaction force at the surgical grasper tip is estimated using the driving motor's current, and fed back to the
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Influence of extracerebral layers on estimates of optical properties with continuous wave near infrared spectroscopy: analysis based on multi-layered brain tissue architecture and Monte Carlo simulation. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-01-28 Yan Zhang,Xin Liu,Qisong Wang,Dan Liu,Chunling Yang,Jinwei Sun,Peter Rolfe
Continuous wave near-infrared spectroscopy (CW-NIRS) can be used to measure cerebral activity because it is noninvasive, simple and portable. However, the performance of the CW-NIRS is distorted by the presence of extracerebral layer. Change of optical parameters in gray matter layer will then be inappropriately converted into the brain activity response. In the current study, a five-layer structure
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Analysis and recognition of characteristics of digitized tongue pictures and tongue coating texture based on fractal theory in traditional Chinese medicine. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-01-24 Ji Zhang,Jun Qian,Tao Yang,Hai-Yan Dong,Rui-Juan Wang
Simple fractal dimensions have been proposed for use in the analysis of the characteristics of digitized tongue pictures and tongue coating texture, which could further the establishment of objectified classification criteria under the conditions of expanding sample size. However, detailed descriptions on simple fractal dimensions have been limited. Therefore, BP (back propagation) neural network model
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Nonlinear ultrasonic imaging in pulse-echo mode using Westervelt equation: a preliminary research. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-09-24 Wuxuan Chen,Peng Wang,Zhihong Zhang,Xudong Deng,Congyao Zhang,Shenggen Ju
Acoustic nonlinear parameter β, was of great interest in tissue characterization in recent years. Nonlinear imaging methods have been reported to provide improved spatial and contrast resolution. We introduce a nonlinear imaging method derived from nonlinear wave equation based on Gaussian-form solution assumption, which can be applied in pulse-echo mode on diagnostic ultrasound. Through making the
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Notice of Duplicate Publication Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-09-16
(2019). Notice of Duplicate Publication. Computer Assisted Surgery: Vol. 24, Advances in Minimally Invasive Surgery and Clinical Measurement. Guest Editors: Chengyu Liu & Lung-kwang Pan, pp. 184-185.
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Quantitative assessment of three vendor's metal artifact reduction techniques for CT imaging using a customized phantom. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-09-10 Ryan Chou,Jung-Hui Li,Liu-Kuo Ying,Cheng-Hsun Lin,Wan Leung
A metal implant was placed in an acrylic phantom to enable quantitative analysis of the metal artifact reduction techniques used in computed tomography (CT) scanners from three manufacturers. Two titanium rods were placed in a groove in a cylindrical phantom made by acrylic, after which the groove was filled with water. The phantom was scanned using three CT scanners (Toshiba, GE, Siemens) under the
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Is bony attachment necessary for dynamic reference frame in navigation-assisted minimally invasive lumbar spine fusion surgery? Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-09-03 Hsi-Hsien Lin,Yueh-Hsiu Lu,Po-Hsin Chou,Ming-Chau Chang,Shih-Tien Wang,Chien-Lin Liu
This study aimed to compare the accuracy of navigation-assisted percutaneous pedicle screw insertions between traditional posterior superior iliac spine (PSIS) fixed and cutaneously fixed dynamic reference frame (DRF) in minimally invasive surgery of transforaminal lumbar interbody fusion (MIS TLIF). This is a prospective randomized clinical study. Between May 2016 and Nov 2017, 100 patients who underwent
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Evaluation of laparoscopic forceps jaw contact pressure and distribution using pressure sensitive film. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-08-29 Rui Zhu,Maxime Maréchal,Ikuo Yamamoto,Murray John Lawn,Takeshi Nagayasu,Keitaro Matsumoto
In this study, the authors used the Fujifilm Prescale Pressure Measuring System to measure the contact pressure and distribution at the jaws of laparoscopic grasping forceps. This data was then correlated with measured pressures at the forceps handles to understand the relationship between the surgeon’s actuating pressure and that on the organ being manipulated. The purpose of this study is to create
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Design and control of a MRI-compatible pneumatic needle puncture robot. Comput. Assist. Surg. (IF 2.1) Pub Date : 2019-08-26 Baoliang Zhao,Yi Fu,Yuanyuan Yang,Peng Zhang,Ying Hu
Percutaneous needle puncture operation is widely used in the image-guided interventions, including biopsy and ablation. MRI guidance has the advantages of high-resolution soft tissue imaging and thermal monitoring during energy-based ablation. This paper proposes the design of a 5-DOF pneumatic needle puncture robot, with all the cylinders, sensors and structure material MRI-compatible. Also, a hybrid