Results 1 to 10 of about 845 (126)

Electron stream effect in 0.35 Tesla magnetic resonance image guided radiotherapy for breast cancer

Frontiers in Oncology, 2023
PurposeThis research aimed to analyze electron stream effect (ESE) during magnetic resonance image guided radiotherapy (MRgRT) for breast cancer patients on a MR-Linac (0.35 Tesla, 6MV), with a focus on the prevention of redundant radiation exposure ...
Hsin-Hua Lee, Hsin-Hua Lee, Hsin-Hua Lee, Hsin-Hua Lee, Chun-Yen Wang, Shan-Tzu Chen, Tzu-Ying Lu, Cheng-Han Chiang, Ming-Yii Huang, Ming-Yii Huang, Ming-Yii Huang, Ming-Yii Huang, Ming-Yii Huang, Chih-Jen Huang, Chih-Jen Huang, Chih-Jen Huang   +15 more
doaj   +1 more source

Assessment of dose heterogeneity in TBI using the thorax of the anthropomorphic Alderson-Rando phantom and TLDs in two different setups

Brazilian Journal of Radiation Sciences, 2023
Total body irradiation (TBI) is a treatment modality of radiotherapy. It can be used for immunosuppression of transplanted patients or for metastatic protocols. In this study, TBI was performed using the anthropomorphic Alderson-Rando phantom filled with
Fernando Rodrigues, Arnie Nolasco, Luiz Cláudio Meira Belo, Claudete Silva, Telma Fonseca   +4 more
doaj   +1 more source

Fabrication of malleable three-dimensional-printed customized bolus using three-dimensional scanner. [PDF]

PLoS ONE, 2017
A three-dimensional (3D)-printed customized bolus (3D bolus) can be used for radiotherapy application to irregular surfaces. However, bolus fabrication based on computed tomography (CT) scans is complicated and also delivers unwanted irradiation ...
Jae Won Park, Se An Oh, Ji Woon Yea, Min Kyu Kang   +3 more
doaj   +1 more source

Dose distribution in a radiosurgery treatment for an acoustic neuroma

Brazilian Journal of Radiation Sciences, 2021
Evaluation of the dose distribution delivered in a radiosurgery treatment of an acoustic neuroma using an adapted Alderson phantom and radiochromic film to assess absolute dose. A system was developed to perform the dose measurements, using the Alderson
Marco Antonio Costa Cardoso, Victor Gabriel Leandro Alves, Simone Coutinho Cardoso   +2 more
doaj   +1 more source

Evaluation of Absorbed Dose of Critical Organ in Rando Phantom under Head, Abdomen and Pelvis Spiral CT Scan by Thermo Luminescent Dosimetery - TLD [PDF]

Journal of Fasa University of Medical Sciences, 2011
Background & Objectives: Computed tomography (CT) represents 11% of all diagnostic radiology procedures but it contributes to almost 67% of the total effective dose to the human population.
Gholamhosein Haddadi, Simin Mehdizadeh, Mohammad Bagher Haddadi, Mohammad Hasan Meshkibaf   +3 more
doaj   +1 more source

Verification of performance of Acuros XB Algorithm (AXB) Implemented on Eclipse Planning System [PDF]

Research in Oncology, 2018
Background: Verification of dose calculation algorithms is important in the radiotherapy process. Aim: The aim of this work is to verify the dose calculation accuracy of Acuros XB version 10 algorithm (AXB10) in homogenous and heterogeneous media ...
Nader Elsherbini, Wafaa Ahmed, Sherifa Elwakeel   +2 more
doaj   +1 more source

Measurement of Entrance Skin Dose and the Dose Received by Different Organs in Panoramic Dental Imaging [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: Thermoluminescence dosimetry(TLD) has been known as one of the most effective methods for dose estimation in diagnostic radiology. Orthopantomogram (OPG) imaging is used by many dentists, oral and maxillofacial surgeons as an effective tool ...
A Ahmadi, A Negarestani, S Sina, S Sarshough   +3 more
doaj   +1 more source

Evaluation of effective dose during X-ray training in a radiological technology program in Korea

Journal of Radiation Research and Applied Sciences, 2018
The objective of this study was to evaluate the potential risks encountered during X-ray training in radiology education. 10 exposure scenarios were selected by interviewing the radiation experts who they are professors having roles in the X-ray training.
Jongkyung Ko, Yongmin Kim
doaj   +1 more source

Dosimetric Comparison of Two Craniospinal Radiotherapy Techniques for Treatment Optimization [PDF]

Iranian Journal of Medical Physics, 2010
Introduction: Orthogonal radial fields are those in which the central axes are perpendicular to each other. An example of these orthogonal fields is the set of craniospinal orthogonal fields that are used for radiotherapy of medulloblastoma. Craniospinal
Hamidreza Baghani, Seyed Mahmoodreza Aghamiri, Hossein Gharaati, Seyed Rabie Mahdavi   +3 more
doaj   +1 more source

Development and dosimetric verification of epoxy-BaSO4 bone-equivalent composites for mandibular and cervical regions in radiotherapy planning

Medicine Science
This study aimed to develop epoxy-barium sulfate (BaSO₄) composites as bone-equivalent materials for the mandibular and cervical vertebral regions of a Rando phantom and to evaluate their radiological and dosimetric accuracy in radiotherapy planning ...
Eda Kaya Pepele, Yildiray Ozguven, Sule Parlar   +2 more
doaj   +1 more source