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相关论文: Biomimicry in Radiation Therapy: Optimizing Patien…

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Radiation Therapy (RT) plays a pivotal role in the treatment of cancer, offering the potential to effectively target and eliminate tumour cells while minimizing harm to surrounding healthy tissues. However, the success of RT heavily depends…

医学物理 · 物理学 2024-02-16 Keshav Kumar K. , NVSL Narasimham , A. Ramakrishna Prasad

Radiation therapy (RT) is a medical treatment to kill cancer cells or shrink tumors. To manually schedule patients for RT is a time-consuming and challenging task. By the use of optimization, patient schedules for RT can be created…

最优化与控制 · 数学 2023-05-04 Sara Frimodig , Per Enqvist , Mats Carlsson , Carole Mercier

The predicted increase in the number of patients receiving radiation therapy (RT) to treat cancer calls for an optimized use of resources. To manually schedule patients on the linear accelerators delivering RT is a time-consuming and…

最优化与控制 · 数学 2023-03-29 Sara Frimodig , Carole Mercier , Geert De Kerf

Radiation therapy is a critical component of cancer treatment. However, the delivery of radiation poses inherent challenges, particularly in minimizing radiation exposure to healthy organs surrounding the tumor site. One significant…

最优化与控制 · 数学 2024-01-22 Keshav Kumar K. , NVSL Narasimham

In recent years, volumetric modulated arc therapy (VMAT) has been becoming a more and more important radiation technique widely used in clinical application for cancer treatment. One of the key problems in VMAT is treatment plan…

医学物理 · 物理学 2016-01-06 Yu Yang , Bin Dong , Zaiwen Wen

Radiotherapy planning is a critical aspect of cancer treatment, where the optimal selection of beam directions and dose distributions significantly impacts treatment efficacy and patient outcomes. Traditionally, this process involves…

医学物理 · 物理学 2023-12-05 Keshav Kumar K. , NVSL Narasimham , A. Ramakrishna Prasad

In the past decades mathematical optimization has found its way into radiation therapy and has made profound practice changing impact. Today, virtually all advanced treatment delivery methods, such as IMRT, VMAT, tomotherapy, LDR/HDR…

医学物理 · 物理学 2018-10-31 Bram L. Gorissen , Jan Unkelbach , Thomas R. Bortfeld

Among the genetic algorithms generally used for optimization problems in the recent decades, quantum-inspired variants are known for fast and high-fitness convergence and small resource requirement. Here the application to the patient…

神经与进化计算 · 计算机科学 2025-06-06 Akira SaiToh , Arezoo Modiri , Amit Sawant , Robabeh Rahimi

A central problem in the field of radiation therapy (RT) is how to optimally deliver dose to a patient in a way that fully accounts for anatomical position changes over time. As current RT is a static process, where beam intensities are…

医学物理 · 物理学 2019-09-04 Rodney D. Wiersma , Xinmin Liu

We consider the effects of parameter uncertainty on the optimal radiation schedule in the context of the linear-quadratic model. Our interest arises from the observation that if inter-patient variations in OAR and tumor sensitivities to…

组织与器官 · 定量生物学 2015-06-05 Hamidreza Badri , Yoichi Watanabe , Kevin Leder

Radiotherapy (RT) is a critical cancer treatment, with volumetric modulated arc therapy (VMAT) being a commonly used technique that enhances dose conformity by dynamically adjusting multileaf collimator (MLC) positions and monitor units…

医学物理 · 物理学 2025-06-26 Stefanos Achlatis , Efstratios Gavves , Jan-Jakob Sonke

We analyze the effect of tumor repopulation on optimal dose delivery in radiation therapy. We are primarily motivated by accelerated tumor repopulation towards the end of radiation treatment, which is believed to play a role in treatment…

医学物理 · 物理学 2015-04-28 Thomas Bortfeld , Jagdish Ramakrishnan , John N. Tsitsiklis , Jan Unkelbach

Chemotherapy appointment scheduling is a challenging problem due to the uncertainty in pre-medication and infusion durations. In this paper, we formulate a two-stage stochastic mixed integer programming model for the chemotherapy…

最优化与控制 · 数学 2021-01-20 Nur Banu Demir , Serhat Gul , Melih Celik

The aim is to create a method for accurately estimating the duration of post-cancer treatment, particularly focused on chemotherapy, to optimize patient care and recovery. This initiative seeks to improve the effectiveness of cancer…

计算机与社会 · 计算机科学 2025-04-24 Joyee Chakraborty , Mazahrul Islam Tohin , Danbir Rashid , Tanjil Ahmed Tanmoy , Md. Jehadul Islam Mony

The problem of chemotherapy treatment optimization can be defined in order to minimize the size of the tumor without endangering the patient's health; therefore, chemotherapy requires to achieve a number of objectives, simultaneously. For…

神经与进化计算 · 计算机科学 2023-03-21 Mina Jafari , Behnam Ghavami , Vahid Sattari Naeini

Patient scheduling is a difficult task involving stochastic factors such as the unknown arrival times of patients. Similarly, the scheduling of radiotherapy for cancer treatments needs to handle patients with different urgency levels when…

机器学习 · 计算机科学 2022-10-25 Tu-San Pham , Antoine Legrain , Patrick De Causmaecker , Louis-Martin Rousseau

The dose delivered to the planning target volume by proton beams is highly conformal, sparing organs at risk and normal tissues. New treatment planning systems adapted to spot scanning techniques have been recently proposed to…

医学物理 · 物理学 2022-05-18 François Smekens , Nicolas Freud , Bruno Sixou , Guillaume Beslon , Jean M Létang

Traditionally, optimization of radiation therapy (RT) treatment plans has been done before the initiation of RT course, using population-wide estimates for patients' response to therapy. However, recent technological advancements have…

医学物理 · 物理学 2021-02-15 Stefan C. M. ten Eikelder , Ali Ajdari , Thomas Bortfeld , Dick den Hertog

Online adaptive radiotherapy (ART) requires accurate and efficient auto-segmentation of target volumes and organs-at-risk (OARs) in mostly cone-beam computed tomography (CBCT) images. Propagating expert-drawn contours from the pre-treatment…

计算机视觉与模式识别 · 计算机科学 2023-05-10 Xiao Liang , Jaehee Chun , Howard Morgan , Ti Bai , Dan Nguyen , Justin C. Park , Steve Jiang

Radiation therapy treatment planning can be viewed as an iterative hyperparameter tuning process to balance conflicting clinical goals. In this work, we investigated the performance of modern Bayesian Optimization (BO) methods on automated…

医学物理 · 物理学 2023-02-15 Qingying Wang , Ruoxi Wang , Jiacheng Liu , Fan Jiang , Haizhen Yue , Yi Du , Hao Wu
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