Results 31 to 40 of about 35,736 (252)

Validation of Motorized Wedge Effective Isodose Angle with a 2D Array Detector [PDF]

Iranian Journal of Medical Physics, 2020
Introduction: Elekta Versa HD linear accelerator is equipped with a universal wedge filter which is a single large physical wedge driven by motors; in other words, motorized wedge. It provides a nominal wedge isodose angle of 60° for the field size of 30×
Jaimin Gamit, shreekripa rao, Jyothi N, Sarath Nair, Shambhavi Charan, Rechal Dsouza, Krishan Sharan, Srinidhi Chandraguthi   +7 more
doaj   +1 more source

A 3D discrete model of the diaphragm and human trunk [PDF]

, 2008
In this paper, a 3D discrete model is presented to model the movements of the trunk during breathing. In this model, objects are represented by physical particles on their contours. A simple notion of force generated by a linear actuator allows the model
Baconnier, Pierre, Promayon, Emmanuel
core   +1 more source

Impact of breath-hold level on positional error aligned by stent/Lipiodol in Hepatobiliary radiotherapy with breath-hold respiratory control

BMC Cancer, 2020
Background Respiratory motion management with breath hold for patients with hepatobiliary cancers remain a challenge in the precise positioning for radiotherapy.
Tzu-Jie Huang, Yun Tien, Jian-Kuen Wu, Wen-Tao Huang, Jason Chia-Hsien Cheng   +4 more
doaj   +1 more source

On the Effect of Inter-observer Variability for a Reliable Estimation of Uncertainty of Medical Image Segmentation

, 2018
Uncertainty estimation methods are expected to improve the understanding and quality of computer-assisted methods used in medical applications (e.g., neurosurgical interventions, radiotherapy planning), where automated medical image segmentation is ...
Blatti-Moreno, Marcela, Ermis, Ekin, Herrmann, Evelyn, Jungo, Alain, Meier, Raphael, Reyes, Mauricio, Wiest, Roland   +6 more
core   +1 more source

Quantitative computer-assisted analysis vs. visual estimation of MR imaging response of brain metastases to radiotherapy

Magnetic Resonance Imaging, 1997
Using both quantitative computer-assisted analysis and visual estimation the MR imaging response of brain metastases to whole-brain radiotherapy (WBRT) was prospectively studied in 49 patients. Compared to the computer-assisted analysis, the precision of the visual estimation (by two readers in conference) of tumor response was determined.
Taphoorn, M.J.B., Potman, R.A., Barkhof, F., Weerts, J.G.E., Valk, J., Karim, A.B.M.F., Heimans, J.J.   +6 more
openaire   +4 more sources

Conservative management for postprostatectomy urinary incontinence [PDF]

, 2015
BACKGROUND: Urinary incontinence is common after radical prostatectomy and can also occur in some circumstances after transurethral resection of the prostate (TURP).
Abbinante, Aboseif, Abrams, Ahmed, Albertsen, Altman, Bales, Berghmans, Berghmans, Bocker, Burgio, Burgio, Burkert, Burnett, Campbell, Centemero, Centemero, Chang, Chao, Cornel, Cornu, Crevenna, Crivellaro, Crivellaro, Delmastro, Dieperink, Dijkstra-Eshuis, Donnellan, Dorey, Dorey, Dubbelman, Dubbelman, Dubbelman, Dubbelman, Eastham, Eren, Eren, Fader, Fader, Fader, Ficazzola, Filocamo, Filocamo, Foratos, Franke, Franke, Galloway, Geraerts, Glazener, Glazener, Glazener, Glazener, Glazener, Glazener, Golubuff, Goode, Goode, Grise, Groutz, Gudziak, Guyatt, Guyatt, Guyatt, Guyatt, Hagen, Hagen, Higgins, Hoffmann, Hotston, Hou, Hunter, Hunter, Ip, Jabs, Jacobsen, Jahn, Joseph, Juni, Kahihara, Kampen, Kampen, Kampen, Khan, Kim, Koo, Laurienzo, Leach, Lilli, Lin, Liu, MacDonald, Majoros, Manassero, Marchiori, Mariotti, Martini, Mathewson-Chapman, Mathewson-Chapman, McCammon, McGlynn, McGuire, Milsom, Mishel, Moore, Moore, Moore, Moore, Moore, Moore, Moore, Moore, Morihiro, Morkved, Niël-Weise, Nowak, Omar, Opsomer, Ottenbacher, Overgard, Parekh, Park, Park, Pemberton, Peyromaure, Popolo, Porru, Prota, Rainwater, Rassweiler, Ribeiro, Ribeiro, Ribiero, Ricci, Robinson, Robinson, Robinson, Sacco, Sacco, Salinas Casado, Salinas Casado, Sciarra, Sciarra, Shen, Silva, Simeit, Sueppel, Thompson, Tibaek, Tibaek, Tienforti, Tobia, Traeger, Turner, Uebersax, Update Buckley, Update Buckley, Update Glazener, Update Glazener, Update Nilssen, Voorham-Van Der Zalm, Ware, Wille, Wille, Wilson, Winters, Yamanishi, Yamanishi, Yang, Yao, Yokoyama, Zahariou, Zellner, Zermann, Zhang, Zhang, Zhang, Zhang, Zopf   +177 more
core   +1 more source

A feasibility trial of skin surface motion-gated stereotactic body radiotherapy for treatment of upper abdominal or lower thoracic targets using a novel O-ring gantry

Clinical and Translational Radiation Oncology
Background and purpose: A novel O-ring gantry can deliver stereotactic body radiation therapy (SBRT) with artificial intelligence-facilitated, CT-guided online plan adaptation. It gates mobile targets by optically monitoring skin surface motion. However,
Kendall Kiser, Joshua Schiff, Eric Laugeman, Taeho Kim, Olga Green, Casey Hatscher, Hyun Kim, Shahed Badiyan, Matthew Spraker, Pamela Samson, Clifford Robinson, Alex Price, Lauren Henke   +12 more
doaj   +1 more source

Monitor Unit Verification for Radiotherapy Irregular Fields Based On the Clarkson Method Combined With In-House MLC Shaper Software [PDF]

Iranian Journal of Medical Physics
Introduction: In the present scenario, high precision-radiotherapy is delivered through Linear accelerators in which the dose delivery is achieved by delivering the proper monitor unit (MU).
Athiyaman M, Hemalatha A, Mary Joan, ARUN CHOUGULE, kumar HS, Gokul Raj   +5 more
doaj   +1 more source

Automated Registration of Ultrasound with CT Images: Application to Computer Assisted Prostate Radiotherapy and Orthopedics [PDF]

, 1999
Ultrasound (US) imaging could potentially play a major role in the field of Computer Assisted Surgery (CAS). For doctors and surgeons to make full use of CAS tools in planning and executing surgical operations, they also need user-friendly automatic software based on fast, precise and reliable registration algorithms.
Gelu Ionescu, Stéphane Lavallée, Jacques Demongeot   +2 more
openaire   +1 more source

Atlas-based auto-segmentation for postoperative radiotherapy planning in endometrial and cervical cancers

Radiation Oncology, 2020
Background Since intensity-modulated radiation therapy (IMRT) has become popular for the treatment of gynecologic cancers, the contouring process has become more critical.
Nalee Kim, Jee Suk Chang, Yong Bae Kim, Jin Sung Kim   +3 more
doaj   +1 more source