Results 41 to 50 of about 5,204,838 (351)

Utilization of Diaphragm Motion to Predict the Displacement of Liver Tumors for Patients Treated with Carbon ion Radiotherapy

Technology in Cancer Research & Treatment, 2023
Objectives: To establish and validate a linear model utilizing diaphragm motion (DM) to predict the displacement of liver tumors (DLTs) for patients who underwent carbon ion radiotherapy (CIRT).
Yao Li BM, Wumiao Tang, Jiangbing Zhang, Ruirui Bu MS, Wenchien Hsi PhD, Yongqiang Li PhD   +5 more
doaj   +1 more source

Clinical results of proton beam therapy for elderly patients with non-small cell lung cancer

Radiation Oncology, 2018
Background The purpose of the present study was to evaluate retrospectively the efficacy and safety of proton beam therapy for elderly patients (≥80 years of age) with non-small cell lung cancer.
Takashi Ono, Tatsuya Nakamura, Hisashi Yamaguchi, Yusuke Azami, Kanako Takayama, Motohisa Suzuki, Hitoshi Wada, Yasuhiro Kikuchi, Masao Murakami, Kenji Nemoto   +9 more
doaj   +1 more source

Evaluation of CBCT scatter correction using deep convolutional neural networks for head and neck adaptive proton therapy

Physics in Medicine and Biology, 2020
Adaptive proton therapy (APT) is a promising approach for the treatment of head and neck cancers. One crucial element of APT is daily volumetric imaging of the patient in the treatment position.
A. Lalonde, B. Winey, J. Verburg, H. Paganetti, G. Sharp   +4 more
semanticscholar   +1 more source

Clinical commissioning of intensity modulated proton therapy systems: Report of AAPM Task Group 185.

Medical Physics (Lancaster), 2020
Proton therapy is an expanding radiotherapy modality in the United States and worldwide. With the number of proton therapy centers treating patients increasing, so does the need for consistent, high-quality clinical commissioning practices.
J. Farr, M. Moyers, C. Allgower, M. Bues, W. Hsi, Hosang Jin, D. Mihailidis, Hsiao-Ming Lu, W. Newhauser, W. Newhauser, N. Sahoo, R. Slopsema, D. Yeung, X. Zhu   +13 more
semanticscholar   +1 more source

Comparison of the suitability of CBCT- and MR-based synthetic CTs for daily adaptive proton therapy in head and neck patients

Physics in Medicine and Biology, 2020
Cone-beam computed tomography (CBCT)- and magnetic resonance (MR)-images allow a daily observation of patient anatomy but are not directly suited for accurate proton dose calculations.
A. Thummerer, B. D. de Jong, P. Zaffino, A. Meijers, G. Marmitt, J. Seco, R. Steenbakkers, J. Langendijk, S. Both, M. Spadea, A. Knopf   +10 more
semanticscholar   +1 more source

Comparison of pencil beam and Monte Carlo calculations with ion chamber array measurements for patient-specific quality assurance

Radiation Medicine and Protection, 2022
Objective: To determine under what conditions and criteria comparisons between calculations made with the current clinical treatment planning system (Syngo) and an in-house built TPS (TIMPS) would allow skipping of in-beam portal-specific measurements ...
Yu Deng, Zhi Chen, Qianxia Wang, Pablo Yepes, Zhuangming Shen, Hongliang Chen, Jie Li, Michael F. Moyers   +7 more
doaj   +1 more source

Outcomes and toxicities of definitive radiotherapy and reirradiation using 3‐dimensional conformal or intensity‐modulated (pencil beam) proton therapy for patients with nasal cavity and paranasal sinus malignancies

Cancer, 2020
Proton therapy (PT) improves outcomes in patients with nasal cavity (NC) and paranasal sinus (PNS) cancers. Herein, the authors have reported to their knowledge the largest series to date using intensity‐modulated proton therapy (IMPT) in the treatment ...
M. Fan, J. Kang, Anna Lee, D. Fan, Huili Wang, S. Kitpanit, P. Fox, K. Sine, D. Mah, S. McBride, C. J. Tsai, N. Riaz, L. Dunn, E. Sherman, L. Michel, Bhuvanesh Singh, I. Ganly, R. Wong, J. Boyle, Marc A. Cohen, N. Lee   +20 more
semanticscholar   +1 more source

Comparative clinical evaluation of atlas and deep-learning-based auto-segmentation of organ structures in liver cancer

Radiation Oncology, 2019
Background Accurate and standardized descriptions of organs at risk (OARs) are essential in radiation therapy for treatment planning and evaluation. Traditionally, physicians have contoured patient images manually, which, is time-consuming and subject to
Sang Hee Ahn, Adam Unjin Yeo, Kwang Hyeon Kim, Chankyu Kim, Youngmoon Goh, Shinhaeng Cho, Se Byeong Lee, Young Kyung Lim, Haksoo Kim, Dongho Shin, Taeyoon Kim, Tae Hyun Kim, Sang Hee Youn, Eun Sang Oh, Jong Hwi Jeong   +14 more
doaj   +1 more source

Development of a Comprehensive, Contour-Based, Peer Review Workflow at a Community Proton Center [PDF]

International Journal of Particle Therapy, 2020
Purpose: Quality assurance and continuing quality improvement are integral parts of any radiation oncology practice. With increasingly conformal radiation treatments, it has become critical to focus on every slice of the target contour to ensure adequate
Benjamin T. Cooper, MD, Anuj Goenka, MD, Kevin Sine, CMD, Jae Y. Lee, MD, PhD, Brian H. Chon, MD, Henry K. Tsai, MD, Eugen B. Hug, MD, Hiral P. Fontanilla, MD   +7 more
doaj   +1 more source

First-in-human trial using mixed-reality visualization for patient setup during breast or chest wall radiotherapy

Radiation Oncology
Background The purpose of this study is to assess the feasibility of mixed-reality (MixR) visualization for patient setup in breast and chest wall radiotherapy (RT) by performing a first-in-human clinical trial comparing MixR with a 3-point alignment ...
Perry B. Johnson, Julie Bradley, Samsun Lampotang, Amanda Jackson, David Lizdas, William Johnson, Eric Brooks, Raymond B. Mailhot Vega, Nancy Mendenhall   +8 more
doaj   +1 more source