Results 221 to 230 of about 1,576,634 (357)

Evaluation of the effect of metal stents on dose perturbation in the carbon beam irradiation field

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Propose Carbon ion therapy is indicated for cases in which stents have been inserted, such as bile ducts, but the effect of metal stents on carbon ion therapy is unclear. In this study, the dose perturbation of carbon ion therapy caused by metallic bile duct stents was evaluated by dosimetry. Materials and methods Five different types of metal
Yuya Miyasaka, Tetsuya Ishizawa, Yoshihito Nawa, Hikaru Souda, Shohei Kawashiro, Hongbo Chai, Miyu Ishizawa, Hiraku Sato, Takeo Iwai   +8 more
wiley   +1 more source

Proportional Hazards Model on Attrition and its Predictors in Community Antiretroviral Refill Groups among ART Users in Eastern Ethiopia. [PDF]

J Int Assoc Provid AIDS Care
Asmare L, Bayou FD, Arefaynie M, Mekonen AM, Tareke AA, Keleb A, Abera KM, Kebede N, Gebeyehu EM, Ayres A, Tsega Y, Endawkie A, Kebede SD, Abeje ET, Enyew EB, Daba C.   +15 more
europepmc   +1 more source

SurvBoost: An R Package for High-Dimensional Variable Selection in the Stratified Proportional Hazards Model via Gradient Boosting. [PDF]

R J, 2020
Morris E, He K, Li Y, Li Y, Kang J.
europepmc   +1 more source

Risk factors associated with major adverse cardiac and cerebrovascular events following percutaneous coronary intervention: a 10-year follow-up comparing random survival forest and Cox proportional-hazards model. [PDF]

BMC Cardiovasc Disord, 2021
Farhadian M, Dehdar Karsidani S, Mozayanimonfared A, Mahjub H.   +3 more
europepmc   +1 more source

Software for fitting nonstandard proportional subdistribution hazards models [PDF]

, 2010
Arthur Allignol, Jan Beyersmann
openalex   +1 more source

Closing the gap in plan quality: Leveraging deep‐learning dose prediction for adaptive radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Balancing quality and efficiency has been a challenge for online adaptive therapy. Most systems start the online re‐optimization with the original planning goals. While some systems allow planners to modify the planning goals, achieving a high‐quality plan within time constraints remains a common barrier.
Sean J. Domal, Austen Maniscalco, Justin Visak, Michael Dohopolski, Dominic Moon, Vladimir Avkshtol, Dan Nguyen, Steve Jiang, David Sher, Mu‐ Han Lin   +9 more
wiley   +1 more source

The Bernstein–von Mises theorem for the proportional hazard model

, 2006
Yongdai Kim
openalex   +1 more source

A comparative analysis of deep learning architectures with data augmentation and multichannel input for locoregional breast cancer radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Studies on deep learning dose prediction increasingly focus on 3D models with multiple input channels and data augmentation, which increases the training time and thus also the environmental burden and hampers the ease of re‐training. Here we compare 2D and 3D U‐Net models with clinical accepted plans to evaluate the appropriateness of
Rosalie Klarenberg, Nienke L. M. Bakx, Coen W. Hurkmans   +2 more
wiley   +1 more source

[Parameter estimation using time-dependent Weibull proportional hazards model for survival analysis with partly interval censored data]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang S, Liu X, Li R, Li Y.
europepmc   +1 more source

Prediction Intervals for Proportional Hazard Rate Models Based on Progressively Type II Censored Samples [PDF]

, 2010
A. Asgharzadeh, R. Valiollahi
openalex   +1 more source