English
Related papers

Related papers: A DNA damage multi-scale model for NTCP in proton …

200 papers

Secondary radiation in a radiation therapy environment is considered a cause for post-treatment side effects including secondary carcinogenesis. In a proton-therapy setup, neutrons deliver a considerable extra dose to the patient. Various…

Medical Physics · Physics 2022-11-16 Nima Tatari

Purpose: Currently, calculations of proton range in proton therapy patients are based on a conversion of CT Hounsfield Units of patient tissues into proton relative stopping power. Uncertainties in this conversion necessitate larger…

We review the status of the Standard Model theory of neutron beta decay. Particular emphasis is put on the recent developments in the electroweak radiative corrections. Given that some existing approaches give slightly different results, we…

High Energy Physics - Phenomenology · Physics 2023-11-01 Mikhail Gorchtein , Chien-Yeah Seng

Objective: To propose a mathematical model for applying Ionization Detail (ID), the detailed spatial distribution of ionization along a particle track, to proton and ion beam radiotherapy treatment planning (RTP). Approach: Our model…

Purpose: To demonstrate a proton imaging system based on well-established fast scintillator technology to achieve high performance with low cost and complexity, with the potential of a straightforward translation into clinical use. Methods:…

Purpose: To present a methodology to analyze the variation of RBE with fractionation from clinical data of tumor control probability (TCP) and to apply it to study the response of prostate cancer to proton therapy. M&M: We analyzed the…

Purpose: The introduction of Gold NanoParticles (GNPs) in radiotherapy requires consideration of GNP size, location, and quantity, and more, as well as beam quality. The work is presented in two parts, with Part I (this work) investigating…

Medical Physics · Physics 2023-05-04 Martin P. Martinov , Elizabeth M. Fletcher , Rowan M. Thomson

$Objective$. Obtaining the intrinsic dose distributions in particle therapy is a challenging problem that needs to be addressed by imaging algorithms to take advantage of secondary particle detectors. In this work, we investigate the…

Instrumentation and Detectors · Physics 2022-09-28 Atiq. Ur. Rahman , Mythra Varun. Nemallapudi , Cheng-Ying. Chou , Shih-Chang Lee , Chih-Hsun. Lin

Dual-energy computed tomography (DECT) is a promising technology that has shown a number of clinical advantages over conventional X-ray CT, such as improved material identification, artifact suppression, etc. For proton therapy treatment…

This work aims at carving out more clearly the basic assumptions behind the "track-event theory" (TET) and its derivate radiation action model based on nanodosimetry (RAMN) by clearly distinguishing between effects of tracks at the cellular…

Medical Physics · Physics 2021-11-24 Sonwabile Arthur Ngcezu , Hans Rabus

Non-invasive radiological-based lesion characterization and identification, e.g., to differentiate cancer subtypes, has long been a major aim to enhance oncological diagnosis and treatment procedures. Here we study a specific population of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Yuankai Huo , Jinzheng Cai , Chi-Tung Cheng , Ashwin Raju , Ke Yan , Bennett A. Landman , Jing Xiao , Le Lu , Chien-Hung Liao , Adam P. Harrison

NLP-based computer vision models, particularly vision transformers, have been shown to outperform CNN models in many imaging tasks. However, most digital pathology artificial-intelligence models are based on CNN architectures, probably…

Computation and Language · Computer Science 2023-02-22 Min Cen , Xingyu Li , Bangwei Guo , Jitendra Jonnagaddala , Hong Zhang , Xu Steven Xu

Due to the physical and chemical processes that are involved, interactions of ionizing radiations with cells lead to single- and double-strand breaks (SSB and DSB) and base damage to DNA cells. The damage may kill the cells or may be…

We address the prediction of ductile damage and material anisotropy accumulated during plastic deformation of metals. A new model of phenomenological metal plasticity is proposed which is suitable for applications involving large…

Materials Science · Physics 2015-04-01 A. V. Shutov , C. B. Silbermann , J. Ihlemann

Diffuse Large B-cell Lymphoma (DLBCL) is a lymphatic cancer involving one or more lymph nodes and extranodal sites. Its diagnostic and follow-up rely on Positron Emission Tomography (PET) and Computed Tomography (CT). After diagnosis, the…

Computer tomography is one of the most promising new methods to image abnormal tissues inside the human body. Tomography is also used to position the patient accurately before radiation therapy. Hadron therapy for treating cancer has become…

Contouring of the target volume and Organs-At-Risk (OARs) is a crucial step in radiotherapy treatment planning. In an adaptive radiotherapy setting, updated contours need to be generated based on daily imaging. In this work, we leverage…

Image and Video Processing · Electrical Eng. & Systems 2020-02-19 Mohamed S. Elmahdy , Tanuj Ahuja , U. A. van der Heide , Marius Staring

Predictive dosimetry is central to enabling personalized radiopharmaceutical therapy (RPT), particularly in prostate specific membrane antigen (PSMA) targeted theranostics. In this work, we develop a three layer computational framework that…

Medical Physics · Physics 2026-02-02 Hamid Abdollahi , James Fowler , Carlos Uribe , Arman Rahmim

Causal inference plays a fundamental role in various real-world applications. However, in the motivating non-small cell lung cancer (NSCLC) study, it is challenging to estimate the treatment effect of chemotherapy on circulating tumor DNA…

Methodology · Statistics 2025-08-25 Zhixin Qiu , Huichen Zhu , Wenjie Wang , Yanlin Tang

Radiation exposure in positron emission tomography (PET) imaging limits its usage in the studies of radiation-sensitive populations, e.g., pregnant women, children, and adults that require longitudinal imaging. Reducing the PET radiotracer…

Image and Video Processing · Electrical Eng. & Systems 2021-07-22 Viswanath P. Sudarshan , Uddeshya Upadhyay , Gary F. Egan , Zhaolin Chen , Suyash P. Awate
‹ Prev 1 4 5 6 7 8 10 Next ›