16,543 Hits in 3.9 sec

Generation of smooth and accurate surface models for surgical planning and simulation

Tobias Moench, Mathias Neugebauer, Peter Hahn, Bernhard Preim
2010 Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling  
Furthermore, surface models are employed for generating volume meshes for simulating e.g. tissue deformation or blood flow. In such applications, smoothness and accuracy of the models are essential.  ...  and accurate surface meshes for exemplary cases.  ...  ACKNOWLEDGMENTS Tobias Moench is funded by the German Ministry of Education and Science (BMBF) within the ViERforES project (, no. 01IM08003C).  ... 
doi:10.1117/12.844235 dblp:conf/miigp/MonchNHP10 fatcat:v3rpfpsmi5fwxgrtvh5fueuvfa

Surgical Planning and Additive Manufacturing of an Anatomical Model: A Case Study of a Spine Surgery [chapter]

Levent Aydin, Ozgur Cakir, Riza Dilek, Mucahit Ege
2020 Medical Robotics - New Achievements  
Consequently, an ideal protocol for surgical planning of a spine surgery is defined with measurable accuracy.  ...  The aim of this study is to assess the accuracy of the suggested low-cost and effective surgical planning method by means of additive manufacturing to increase success rate of each surgery.  ...  The results of the DSC and HD values of each reconstructed model reveal the ideal protocol for surgical planning of a spine surgery and determine the accuracy of the created model.  ... 
doi:10.5772/intechopen.89950 fatcat:y5br7gtz4ralxlvgmmbs4x7fvu

Computed Tomography-Based Preoperative Simulation System for Pedicle Screw Fixation in Spinal Surgery

Woochan Wi, Sang-Min Park, Byung-Seok Shin
2020 Journal of Korean medical science  
Taubin smoothing was applied to smooth out the rough surface.  ...  A preoperative planning system facilitates improving surgical outcomes that depend on the experience of the surgeons, thanks to real-time interaction between the system and surgeons.  ...  Although Laplacian smoothing was applied before generating the LOD models, the surface of the mesh generated by the LOD algorithms may not be smooth.  ... 
doi:10.3346/jkms.2020.35.e125 pmid:32383365 pmcid:PMC7211513 fatcat:kw3tygtmhvhqhatiflfukyov4e

Application of 3D modeling and printing technology in accurate resection of complicated thoracic tumors

Deli Tan, Jie Yao, Xing Hua, Jingyao Li, Zhou Xu, Yi Wu, Wei Wu
2020 Annals of Translational Medicine  
help surgeons carry out accurate surgical treatment, reduce the operation time and bleeding, reduce the risk of surgery, and facilitate the postoperative rehabilitation of patients, which has the value  ...  In the unresectable group, the score of position and smoothness of tumor-vascular contact surface were significantly higher than that in the resectable group. 3D reconstruction and 3D printing can effectively  ...  Results 3D digital and printed models of complicated thoracic tumors We created 3D digital and printed models of complicated thoracic tumors, and accurately formulated surgical plans.  ... 
doi:10.21037/atm-20-1791 pmid:33313087 pmcid:PMC7723599 fatcat:pjmiyodllbd7dgbkhh6nwknnla

A Self-Supervised Deep Framework for Reference Bony Shape Estimation in Orthognathic Surgical Planning [article]

Deqiang Xiao, Hannah Deng, Tianshu Kuang, Lei Ma, Qin Liu, Xu Chen, Chunfeng Lian, Yankun Lang, Daeseung Kim, Jaime Gateno, Steve Guofang Shen, Dinggang Shen (+2 others)
2021 arXiv   pre-print
Virtual orthognathic surgical planning involves simulating surgical corrections of jaw deformities on 3D facial bony shape models.  ...  Experimental results show that the estimated shape models given by our approach are clinically acceptable and significantly more accurate than that of the competing method.  ...  Acknowledgement This work was supported in part by United States National Institutes of Health (NIH) grants R01 DE022676, R01 DE027251, and R01 DE021863.  ... 
arXiv:2109.05191v1 fatcat:gnmlg6ybdvhhxlaicwwnv44rsa

Three-Dimensional Visualization of Subdural Electrodes for Presurgical Planning

Peter S LaViolette, Scott D Rand, Manoj Raghavan, Benjamin M Ellingson, Kathleen M Schmainda, Wade Mueller
2011 Operative Neurosurgery  
OBJECTIVE-We introduce a technique for creating accurate 3-dimensional (3D) brain models with electrode overlays, ideal for resective surgical planning.  ...  CONCLUSION-We present an accurate method for visualizing subdural electrodes on brain compression effected 3D models that serves as an ideal platform for surgical planning.  ...  Acknowledgments Special thanks to Linda Allen, BSN, RN, Sonia Neuberger, PA-C, for administrative support, Dr Sean Lew, MD, for helpful conversations, and to the patients who chose to participate in this  ... 
doi:10.1227/neu.0b013e31820783ba pmid:21206319 pmcid:PMC4339031 fatcat:rl2p4vfdbfhstj5zshphgyfjtu

Predictive surgical simulation of aorta reconstruction in cardiac surgery

Hao Li, Wee Kheng Leow, Yingyi Qi, Ing-Sh Chiu
2009 Studies in Health Technology and Informatics  
This paper proposes a method for performing predictive simulation of complex cardiac surgery. It computes complex surgical results given a small amount of user inputs.  ...  In this way, the surgeon can easily explore various surgical options without having to go through all the detailed steps of the surgical procedure.  ...  They are useful for surgical training and preoperative planning of surgical operations.  ... 
pmid:19377139 fatcat:kwudvmkrvbcx3gjuer5iea737m

Combining Volumetric Soft Tissue Cuts for Interventional Surgery Simulation [chapter]

Megumi Nakao, Tomohiro Kuroda, Hiroshi Oyama, Masaru Komori, Tetsuya Matsuda, Takashi Takahashi
2002 Lecture Notes in Computer Science  
Measurement of the calculation time and visualization of simulation quality confirms that the framework contributes to surgical planning and training with tissue cutting.  ...  A strained status of soft tissues is modeled as internal tension between adjacent vertices in a particle based model.  ...  Measurement of the calculation time and demonstration of simulation quality confirmed that the model contributes to surgical planning and training.  ... 
doi:10.1007/3-540-45787-9_23 fatcat:blsqqncrbvddpfnfyvwfbyzagi

Development of a Patient-Specific 3D-Printed Liver Model for Preoperative Planning

Marta J. Madurska, Matthieu Poyade, David Eason, Paul Rea, Angus J. M. Watson
2017 Surgical Innovation  
The digital data of the extracted anatomical surfaces was then edited and smoothed resulting in a set of digital 3D models of the hepatic vein, portal vein with tumour, biliary tree with gallbladder and  ...  Surgical Innovation Madurska, Poyade, Eason, Rea, Watson/ Development of patient specific 3D printed liver 3 model for preoperative planning Introduction Liver surgery is a mainstay of treatment for a  ...  Surgical Innovation Madurska, Poyade, Eason, Rea, Watson/ Development of patient specific 3D printed liver 5 model for preoperative planning Surface extraction and model processing Surface extraction of  ... 
doi:10.1177/1553350616689414 pmid:28134003 fatcat:c4rnk5ca2behlmmul7dlmsfwle

Outcome quantification using SPHARM-PDM toolbox in orthognathic surgery

Beatriz Paniagua, Lucia Cevidanes, HongTu Zhu, Martin Styner
2010 International Journal of Computer Assisted Radiology and Surgery  
Visualization of color maps of virtually simulated surgical displacements describe corresponding surface distances that precisely describe location of changes, and difference vectors indicate directionality  ...  Methods-In our setting, planning and surgical simulation is performed using the surgery planning software CMFapp.  ...  Surgical planning and simulation After diagnosis, the next step is to use 3D virtual surface models to plan and simulate the surgical intervention using CMFapp.  ... 
doi:10.1007/s11548-010-0539-z pmid:21161693 pmcid:PMC3088776 fatcat:5svylhzx4rhojkslhcebxtqtzu

An eFace-Template Method for Efficiently Generating Patient-Specific Anatomically-Detailed Facial Soft Tissue FE Models for Craniomaxillofacial Surgery Simulation

Xiaoyan Zhang, Zhen Tang, Michael A. K. Liebschner, Daeseung Kim, Shunyao Shen, Chien-Ming Chang, Peng Yuan, Guangming Zhang, Jaime Gateno, Xiaobo Zhou, Shao-Xiang Zhang, James J. Xia
2015 Annals of Biomedical Engineering  
Accurate surgical planning and prediction of craniomaxillofacial surgery outcome requires simulation of soft-tissue changes following osteotomy.  ...  This paper presents a novel semiautomatic approach, named eFace-template method, for efficiently and accurately generating a patient-specific facial soft tissue model.  ...  Chang was sponsored by Taichung Veterans General Hospital while they were working at the Surgical Planning Laboratory, Department of Oral and Maxillofacial Surgery, Houston Methodist Research Institute  ... 
doi:10.1007/s10439-015-1480-7 pmid:26464269 pmcid:PMC4833683 fatcat:3sse2fvpbzebfpi2ser2af7qla

Toward the Development of Virtual Surgical Tools to Aid Orthopaedic FE Analyses

Srinivas C. Tadepalli, Kiran H. Shivanna, Vincent A. Magnotta, Nicole A. Kallemeyn, Nicole M. Grosland
2009 EURASIP Journal on Advances in Signal Processing  
Finite element models, for example, may be used to predict the outcome of a surgical intervention or to improve the design of prosthetic implants.  ...  Computational models of joint anatomy and function provide a means for biomechanists, physicians, and physical therapists to understand the effects of repetitive motion, acute injury, and degenerative  ...  of Health and The University of Iowa Presidential Graduate Fellowship.  ... 
doi:10.1155/2010/190293 pmid:20376204 pmcid:PMC2850277 fatcat:qlx4tfap7zbajoz4o7izk3dube

Craniosynostosis surgery: workflow based on virtual surgical planning, intraoperative navigation and 3D printed patient-specific guides and templates

David García-Mato, Santiago Ochandiano, Mónica García-Sevilla, Carlos Navarro-Cuéllar, Juan V. Darriba-Allés, Roberto García-Leal, José A. Calvo-Haro, Rubén Pérez-Mañanes, José I. Salmerón, Javier Pascau
2019 Scientific Reports  
Intraoperative navigation is an accurate and reproducible technique for correction of craniosynostosis that enables optimal translation of the preoperative plan to the operating room.  ...  Virtual surgical planning was performed, and patient-specific cutting guides and templates were designed and manufactured.  ...  This work has been supported by Ministerio de Ciencia, Innovación y Universidades, Instituto de Salud Carlos III, project "PI18/01625", co-funded by European Regional Development Fund (ERDF), "A way of  ... 
doi:10.1038/s41598-019-54148-4 pmid:31776390 pmcid:PMC6881390 fatcat:ec3vqyt6sjcctjnscrujfcl2di

Computer-assisted subcapital correction osteotomy in slipped capital femoral epiphysis using individualized drill templates

Sima Zakani, Christopher Chapman, Adam Saule, Anthony Cooper, Kishore Mulpuri, David R. Wilson
2021 3D Printing in Medicine  
Each femur model was laser scanned and digitally matched to the preoperative model for evaluation of entry points and wire angulations.  ...  Five orthopaedic surgeons virtually identified the optimal entry point and direction of the two threaded wires for each case. 3D printed drill guides were designed specific to each surgical plan, with  ...  The segmented model for each part of the femur anatomy (head and neck/shaft) was saved as tessellated surface (STL) format for further use.  ... 
doi:10.1186/s41205-021-00108-6 pmid:34228206 fatcat:ai7gun42dnb37ok2f5qztzh7pm

A framework for facial surgery simulation

R. M. Koch, S. H. M. Roth, M. H. Gross, A. P. Zimmermann, H. F. Sailer
2002 Proceedings of the 18th spring conference on Computer graphics - SCCG '02  
The accurate prediction of the post-surgical facial shape is of paramount importance for surgical planning in facial surgery.  ...  We contrast conventional procedures for surgical planning against our system by accompanying a patient during the entire process of planning, medical treatment and simulation.  ...  We thank our example patient Dario Dobranic for his patience and willingness to participate in the study.  ... 
doi:10.1145/584458.584464 dblp:conf/sccg/KochRGZS02 fatcat:y7ybsbfd2nemzlaec67cnuk5vy
« Previous Showing results 1 — 15 out of 16,543 results