Filters








1,766 Hits in 9.1 sec

Abstract: Multi-Task Framework for X-Ray Guided Planning in Knee Surgery [chapter]

Florian Kordon, Peter Fischer, Maxim Privalov, Benedict Swartman, Marc Schnetzke, Jochen Franke, Ruxandra Lasowski, Andreas Maier, Holger Kunze
2020 Informatik aktuell  
X-ray imaging is frequently used to facilitate planning and operative guidance for surgical interventions.  ...  landmarks, segmentation of bone structures, and prediction of ROIs for geometric line features on X-ray images [1].  ...  X-ray imaging is frequently used to facilitate planning and operative guidance for surgical interventions.  ... 
doi:10.1007/978-3-658-29267-6_57 fatcat:chzhq4mrk5gmnlpnreh2bnlpdm

Multi-Stage Platform for (Semi-)Automatic Planning in Reconstructive Orthopedic Surgery

Florian Kordon, Andreas Maier, Benedict Swartman, Maxim Privalov, Jan Siad El-Barbari, Holger Kunze
2022 Journal of Imaging  
In the method evaluation of three ligament reconstruction tasks effect on the knee joint, we found high spatial precision in drilling point localization (ε<2.9mm) and low angulation errors for k-wire instrumentation  ...  on 2D X-ray images.  ...  Acknowledgments: The authors gratefully acknowledge funding of the Erlangen Graduate School in Advanced Optical Technologies (SAOT) by the Bavarian State Ministry for Science and Art.  ... 
doi:10.3390/jimaging8040108 pmid:35448235 pmcid:PMC9027971 fatcat:axvytwnnlbamhfq35uwmzt24b4

Cone-beam CT with a flat-panel detector: From image science to image-guided surgery

Jeffrey H. Siewerdsen
2011 Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment  
The development of large-area flat-panel x-ray detectors (FPDs) has spurred investigation in a spectrum of advanced medical imaging applications, including tomosynthesis and cone-beam CT (CBCT).  ...  These developments in image science have formed a foundation for the knowledgeable development and translation of CBCT to new applications in image-guided interventions -for example, CBCT implemented on  ...  ,36 orthopaedic surgery of the knee, femur, and spine,33,44-45 thoracic surgery, ear surgery (e.g., cochlear implant), endoscopic sinus surgery, head-and-neck surgery, and skull base surgery.41-43 Early  ... 
doi:10.1016/j.nima.2010.11.088 pmid:22942510 pmcid:PMC3429946 fatcat:kcunai2jbjaozfmvwomxyykc24

Tracker-on-C for cone-beam CT-guided surgery: evaluation of geometric accuracy and clinical applications

S. Reaungamornrat, Y. Otake, A. Uneri, S. Schafer, D. J. Mirota, S. Nithiananthan, J. W. Stayman, A. J. Khanna, D. D. Reh, G. L. Gallia, R. H. Taylor, J. H. Siewerdsen (+2 others)
2012 Medical Imaging 2012: Image-Guided Procedures, Robotic Interventions, and Modeling  
positioning, reduction or elimination of dose in "hunting" for a specific fluoroscopic view, and confident placement of the x-ray FOV on the surgical target.  ...  The proposed configuration streamlines the integration of C-arm CBCT with realtime tracking and demonstrated utility in a spectrum of image-guided interventions (e.g., spine surgery) benefiting from improved  ...  Video Augmentation: Overlay of Planning Data, DRRs, and Virtual Field Light The overlay of planning data (e.g., planned trajectories or anatomical segmentations defined in CT or CBCT) in the Tracker-on-C  ... 
doi:10.1117/12.911454 dblp:conf/miigp/ReaungamornratO12 fatcat:byvh5twuvfh7fg2tx2mmsy25su

Deep 3D Convolutional Networks to Segment Bones Affected by Severe Osteoarthritis in CT Scans for PSI-based Knee Surgical Planning

Davide Marzorati, Mattia Sarti, Luca Mainardi, Alfonso Manzotti, Pietro Cerveri.
2020 IEEE Access  
A specific study exploiting a lightweight U-Net for hand bone segmentation in X-ray images reported 94% of sensitivity [32] .  ...  Both 2D and 3D U-Net models have been investigated for segmentation of hand bones in X-ray images [32] , mandibular bones in craniofacial CT [33] , femur in CT scans [30] and major skeletal bones in  ... 
doi:10.1109/access.2020.3034418 fatcat:gxvde6enynbrvdeziy4llnw6au

Recent Trends, Technical Concepts and Components of Computer-Assisted Orthopedic Surgery Systems: A Comprehensive Review

Jan Kubicek, Filip Tomanec, Martin Cerny, Dominik Vilimek, Martina Kalova, David Oczka
2019 Sensors  
In this review, we also outline the possibilities for using ultrasound computer-assisted orthopedic surgery (UCAOS) systems as an alternative to conventionally used CAOS systems.  ...  Computer-assisted orthopedic surgery (CAOS) systems have become one of the most important and challenging types of system in clinical orthopedics, as they enable precise treatment of musculoskeletal diseases  ...  In this context, 2D X-ray images are the most conventionally used images in orthopedics. However, X-ray images suffer from overlaps of anatomical structures and undesirable distortions.  ... 
doi:10.3390/s19235199 pmid:31783631 pmcid:PMC6929084 fatcat:khnqsovppbh3rjo6mc35vttrw4

CEL-Unet: Distance Weighted Maps and Multi-Scale Pyramidal Edge Extraction for Accurate Osteoarthritic Bone Segmentation in CT Scans

Matteo Rossi, Luca Marsilio, Luca Mainardi, Alfonso Manzotti, Pietro Cerveri
2022 Frontiers in Signal Processing  
The bone segmentation was effective for large pathological deformations and osteophytes, making the techniques potentially usable in PSI-based surgical planning, where the reconstruction accuracy of the  ...  A novel Unet variant, called CEL-Unet, is presented to boost the segmentation quality of the femur and tibia in the osteoarthritic knee joint.  ...  AUTHOR CONTRIBUTIONS All authors listed have made a substantial, direct, and intellectual contribution to the work and approved it for publication.  ... 
doi:10.3389/frsip.2022.857313 fatcat:vicawnsocnfrvm4cuqh2bmdzdu

A Comprehensive Survey on Bone Segmentation Techniques in Knee Osteoarthritis Research: From Conventional Methods to Deep Learning

Sozan Mohammed Ahmed, Ramadhan J. Mstafa
2022 Diagnostics  
In knee joint research and clinical practice there are segmentation approaches that play a significant role in KOA diagnosis and categorization.  ...  In this paper, we seek to give an in-depth understanding of a wide range of the most recent methodologies for knee articular bone segmentation; segmentation methods allow the estimation of articular cartilage  ...  Moreover, the development of a segmentation model based on MRI scans may lead to the adoption of hypothetical surgical procedures for planning real surgery, and the improvement of virtual surgery solutions  ... 
doi:10.3390/diagnostics12030611 pmid:35328164 pmcid:PMC8946914 fatcat:v42arjc75vh3lll42a5yz6ncnm

CARS 2021: Computer Assisted Radiology and Surgery Proceedings of the 35th International Congress and Exhibition Munich, Germany, June 21–25, 2021

2021 International Journal of Computer Assisted Radiology and Surgery  
In our Multi-task U-Net architecture, we share the encoding module for classification and segmentation task to extract common features for those two tasks.  ...  Conclusion In summary, we propose a two-stage entropy guided knee cartilage segmentation method.  ...  Artificial intelligence coronary calcium scoring in low dose chest CT-Ready to go?  ... 
doi:10.1007/s11548-021-02375-4 pmid:34085172 fatcat:6d564hsv2fbybkhw4wvc7uuxcy

Robotic Assistance in Orthopaedic Surgery

FREDERICK A. MATSEN, JOSEPH L. GARBINI, JOHN A. SIDLES, BRIAN PRATT, DONALD BAUMGARTEN, RICHARD KAIURA
1993 Clinical Orthopaedics and Related Research  
Stellingen behorende bij het proefontwerp Computer assistance in orthopaedic surgery door Raymond J.E. Habets 1. Achter een goede chirurg staat steeds vaker een goede ingenieur.  ...  In het heffen van ecotaks op groene stroom zit een dusdanige tegenstrijdigheid, dat het wel zo moet zijn dat òf de naamgeving òf de regelgeving niet klopt. 12.  ...  X-rays are not only used in diagnostic tasks but also in preoperative planning, surgery, postoperative scoring and medical research.  ... 
doi:10.1097/00003086-199311000-00031 fatcat:rwl4kzywfrbzxjc66v53yqgjxm

Computer assisted medical interventions

P. Cinquin, E. Bainville, C. Barbe, E. Bittar, V. Bouchard, L. Bricault, G. Champleboux, M. Chenin, L. Chevalier, Y. Delnondedieu, L. Desbat, V. Dessenne (+15 others)
1995 IEEE Engineering in Medicine and Biology Magazine  
Passive and semi-active aids ince 1985, a team of computer scien-S tists, mathematicians, physicians, and IEEE ENGINEERING IN MEDICINE AND BIOLOGY  ...  Acknowledgments This research is the result of a working group including TIMC and many clinical departments of Grenoble University Hospital, with grants from the french Ministeries of Health and of Research  ...  In the CAMI project, we have developed two different passive aiming systems, for knee surgery and spine surgery.  ... 
doi:10.1109/51.391779 fatcat:5j576otogve6xo2zy4n5zne27i

Robot Autonomy for Surgery [article]

Michael Yip, Nikhil Das
2017 arXiv   pre-print
There are several important advantages of automation in surgery, which include increasing precision of care due to sub-millimeter robot control, real-time utilization of biosignals for interventional care  ...  Autonomous surgery involves having surgical tasks performed by a robot operating under its own will, with partial or no human involvement.  ...  learn any arbitrary complex and multi-layered task.  ... 
arXiv:1707.03080v1 fatcat:lmqzop2s7jczxgo6sxp4mdsdyi

CAI4CAI: The Rise of Contextual Artificial Intelligence in Computer-Assisted Interventions

Tom Vercauteren, Mathias Unberath, Nicolas Padoy, Nassir Navab
2019 Proceedings of the IEEE  
a faithful and actionable shared representation of the surgery among a mixed human-AI actor team; how to design interventional systems and associated cognitive shared control schemes for online uncertainty-aware  ...  Taking stock of some of the most exciting developments in machine learning and artificial intelligence for computer assisted interventions, we highlight the crucial need to take context and human factors  ...  Using such enhanced simulated data for training of more complex tasks has been applied successfully to endoscopy [65] and X-ray imaging [66] .  ... 
doi:10.1109/jproc.2019.2946993 pmid:31920208 pmcid:PMC6952279 fatcat:yz7c65y545bqfe2uy3a2j2j6ni

Occlusion-robust Visual Markerless Bone Tracking for Computer-Assisted Orthopaedic Surgery [article]

Xue Hu, Anh Nguyen, Ferdinando Rodriguez y Baena
2021 arXiv   pre-print
In practice, by using a high-quality commercial RGB-D camera, our proposed visual tracking method achieves an accuracy of 1-2 degress and 2-4 mm on a model knee, which meets the standard for clinical applications  ...  We design a new segmentation network that features dynamic region-of-interest prediction and robust 3D point cloud segmentation.  ...  By providing intraoperative measurements and pre-operative plannings in visual or numerical form, navigation systems guide the surgeon to reach the goal in various steps with greater control, precision  ... 
arXiv:2108.10608v1 fatcat:3rg46dd4ijdu3h47odrmvep5ni

Applications of Augmented Reality in the Operating Room [chapter]

Ziv Yaniv, Cristian Linte
2015 Fundamentals of Wearable Computers and Augmented Reality, Second Edition  
This system was used to project vessels and tumor locations onto the liver surface for guiding open liver surgery, tumor localization for guiding orthopedic tumor resection, and for guiding needle insertions  ...  For each X-ray image the projection parameters and imager pose are known.  ... 
doi:10.1201/b18703-23 fatcat:iqpekdnzsjavrcpjtbkioycnwe
« Previous Showing results 1 — 15 out of 1,766 results