Results 21 to 30 of about 574,013 (307)

Evaluation of deep learning-based autosegmentation in breast cancer radiotherapy

Radiation Oncology, 2021
Purpose To study the performance of a proposed deep learning-based autocontouring system in delineating organs at risk (OARs) in breast radiotherapy with a group of experts. Methods Eleven experts from two institutions delineated nine OARs in 10 cases of
Hwa Kyung Byun, Jee Suk Chang, Min Seo Choi, Jaehee Chun, Jinhong Jung, Chiyoung Jeong, Jin Sung Kim, Yongjin Chang, Seung Yeun Chung, Seungryul Lee, Yong Bae Kim   +10 more
doaj   +1 more source

Evaluation of Three-Dimensional Conformal Radiotherapy and Intensity Modulated Radiotherapy Techniques for Left Breast Post-Mastectomy Patients: Our Experience in Nigerian Sovereign Investment Authority-Lagos University Teaching Hospital Cancer Center, South-West Nigeria

European Journal of Breast Health, 2021
Objective:This study aimed to evaluate the dosimetric properties of treatment plans obtained from three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy techniques (IMRT) plans for left chest wall breast cancer patients ...
Samuel Adeneye, Michael Akpochafor, Bolanle Adegboyega, Adewumi Alabi, Nusirat Adedewe, Adedayo Joseph, Omolara Fatiregun, Akintayo Omojola, Abe Adebayo, Esther Oluwadara   +9 more
doaj   +1 more source

Towards automated organs at risk and target volumes contouring: Defining precision radiation therapy in the modern era

Journal of the National Cancer Center, 2022
Precision radiotherapy is a critical and indispensable cancer treatment means in the modern clinical workflow with the goal of achieving “quality-up and cost-down” in patient care.
Dakai Jin, Dazhou Guo, Jia Ge, Xianghua Ye, Le Lu   +4 more
doaj   +1 more source

3D-Conformal Radiation Therapy and Intensity-Modulated Radiation Therapy Techniques for Laryngeal Cancer Taking Parotid Glands as Organ at Risk [PDF]

Hospital Practices and Research, 2020
Background: Three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy (IMRT) techniques are used for the treatment of patients with laryngeal cancer. Objective: This study aimed to investigate the effects of these 2 treatment
Dler K. Ismael, Fatiheea F. Hassan
doaj   +1 more source

Organs at Risk Delineation

, 2022
Delineation of organs at risk and volumes of interest plays a crucial role in the radiation therapy chain. The process should be aligned with technological and clinical treatment approaches for optimal personalized care. Organs at risk contouring is part of the planning stage, after the initial simulation process, where volumetric CT imaging takes ...
Moura, Filipe Cidade de, Mast, Mirjam
openaire   +2 more sources

A novel specific grading standard study of auto-segmentation of organs at risk in thorax: subjective–objective-combined grading standard

BioMedical Engineering OnLine, 2021
Background To develop a novel subjective–objective-combined (SOC) grading standard for auto-segmentation for each organ at risk (OAR) in the thorax. Methods A radiation oncologist manually delineated 13 thoracic OARs from computed tomography (CT) images ...
Yanchen Ying, Hao Wang, Hua Chen, Jianfan Cheng, Hengle Gu, Yan Shao, Yanhua Duan, Aihui Feng, Wen Feng, Xiaolong Fu, Hong Quan, Zhiyong Xu   +11 more
doaj   +1 more source

Irradiating Residual Disease to 30 Gy with Proton Therapy in Pediatric Mediastinal Hodgkin Lymphoma [PDF]

International Journal of Particle Therapy, 2020
Background: Local relapse is a predominant form of recurrence among pediatric patients with Hodgkin lymphoma (PHL). Although PHL radiotherapy doses have been approximately 20 Gy, adults with Hodgkin lymphoma receiving 30 to 36 Gy experience fewer in ...
Bradford S. Hoppe, Raymond B. Mailhot Vega, Nancy P. Mendenhall, Eric S. Sandler, William B. Slayton, Howard Katzenstein, Michael J. Joyce, Zuofeng Li, Stella Flampouri   +8 more
doaj   +1 more source

Artificial neural network based gynaecological image-guided adaptive brachytherapy treatment planning correction of intra-fractional organs at risk dose variation [PDF]

, 2017
Purpose : Intra-fractional organs at risk (OARs) deformations can lead to dose variation during image-guided adaptive brachytherapy (IGABT). The aim of this study was to modify the final accepted brachytherapy treatment plan to dosimetrically compensate ...
Christian Kirisits, Zahra Siavashpour, Ramin Jaberi, Mahmoud Reza Aghamiri, Reza Ghaderi   +4 more
core   +1 more source

Neurocognition and mean radiotherapy dose to vulnerable brain structures: new organs at risk?

Radiation Oncology, 2023
Background Children with brain tumors are at high risk of neurocognitive decline after radiotherapy (RT). However, there is a lack of studies on how RT doses to organs at risk (OARs) impacts neurocognition.
Helena Söderström, Angelica Walfridsson, Ulla Martinsson, Ulf Isacsson, Karin Brocki, Johan Lundin Kleberg, Gustaf Ljungman   +6 more
doaj   +1 more source

Dosimetric comparison of two-dimensional versus three-dimensional intracavitary brachytherapy in locally advanced cervical cancer [PDF]

Srpski Arhiv za Celokupno Lekarstvo, 2018
Introduction/Objective. The aim of this study was to dosimetric comparison of two-dimensional (2D) with three-dimensional (3D) planning for high-dose-rate intracavitary brachytherapy (HDR-BT) in locally advanced cervical cancer by dose ...
Klisarovska Violeta, Smichkoska Snezhana, Chakalaroski Petar, Krstevska Valentina, Dimitrovska Nadica, Stefanovski Zoran, Lazarova Emilija   +6 more
doaj   +1 more source