Results 31 to 40 of about 111,944 (187)

CT Derived Hounsfield Unit: An Easy Way to Determine Osteoporosis and Radiation Related Fracture Risk in Irradiated Patients

open access: yesFrontiers in Oncology, 2020
Background: We aimed to evaluate osteoporosis, bone mineral density, and fracture risk in irradiated patients by computerized tomography derived Hounsfield Units (HUs) calculated from radiation treatment planning system.Methods: Fifty-seven patients ...
Gokhan Yaprak   +4 more
doaj   +1 more source

Multiobjective, Multidelivery Optimization for Radiation Therapy Treatment Planning

open access: yesAdvances in Radiation Oncology, 2020
Purpose: To introduce multiobjective, multidelivery optimization (MODO), which generates alternative patient-specific plans emphasizing dosimetric trade-offs and conformance to quasi-constrained (QC) conditions for multiple delivery techniques.
William Tyler Watkins, PhD   +2 more
doaj  

COMPARATIVE ANALYSIS OF RADIATION DOSES ON HEART WHEN USING VARIOUS 3D PLANNING METHODS

open access: yesŽurnal Grodnenskogo Gosudarstvennogo Medicinskogo Universiteta, 2020
Background. Malignant neoplasms of the mammary gland represent the most numerous groups in terms of morbidity and mortality among women of the Republic of Belarus.
Lukyanovsky R. V.   +2 more
doaj   +1 more source

Current concepts in F18 FDG PET/CT-based Radiation Therapy planning for Lung Cancer

open access: yesFrontiers in Oncology, 2012
Radiation therapy is an important component of cancer therapy for early stage as well as locally advanced lung cancer. The use of F18 FDG PET/CT has come to the forefront of lung cancer staging and overall treatment decision-making. FDG PET/CT parameters
Percy eLee   +5 more
doaj   +1 more source

Computation of optimal radiation treatment plans

open access: yesJournal of Computational and Applied Mathematics, 1977
AbstractThe goal of radiotherapy is to destroy a tumour in the patient's body by means of radiation. At the same time, healthy tissue is to be damaged as little as possible. In mathematical terms this means: in certain parts of the body minimal doses - necessary to destroy the cancerous tissue - must be achieved; in other parts maximum doses should not
openaire   +2 more sources

Lung Stereotactic Body Radiation Therapy (SBRT) dose gradient and PTV volume: a retrospective multi-center analysis

open access: yesRadiation Oncology, 2019
Background The treatment of lung lesions with stereotactic body radiation therapy calls for highly conformal dose, which is evaluated by a number of metrics. Lung stereotactic body radiation therapy clinical trials constrain a plans gradient index.
David Hoffman   +4 more
doaj   +1 more source

Radiation exposure during orthodontic treatment: risk to children and adolescents

open access: yesActa Odontologica Scandinavica
Objectives: To estimate radiation risk to children and adolescents during orthodontic treatment by retrieving number and type of radiographs from the patient records. Material and methods: Radiographs, along with justifications for radiation exposure,
Christina Stervik   +2 more
doaj   +1 more source

Comparison of radiation dose calculation differences between uRT-TPS and Monaco-TPS for the same linear accelerator in multiple cancers [PDF]

open access: yesZhongguo aizheng zazhi
Background and Purpose: In recent years, domestic radiotherapy equipment and related software have made great progress, and testing the functionality and stability of the equipment and software is an essential step.
YANG Yanju, FANG Yingtao, GAO Dadi, WANG Jiazhou, ZHAO Jun, HU Weigang
doaj   +1 more source

Digital Computers in Radiation Treatment Planning

open access: yesThe British Journal of Radiology, 1964
Details are given of a scheme whereby treatment planning for radiotherapy may be carried out using a digital computer. A programme has been written with great generality to enable a wide range of fixed field and rotational treatment plans to be carried out.
openaire   +3 more sources

Radio(chemo)therapy in locally advanced nonsmall cell lung cancer

open access: yesEuropean Respiratory Review, 2016
Definitive radiochemotherapy is the standard treatment for many patients with locally advanced nonsmall cell lung cancer (NSCLC). Treatment outcomes have improved over the last decades. Several treatment regimens have been shown effective and safe.
Markus Glatzer   +4 more
doaj   +1 more source

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