Results 61 to 70 of about 845 (126)

A phantom study on fetal dose reducing factors in pregnant patients with breast cancer during radiotherapy treatment

Journal of Medical Physics, 2017
Purpose: This study aims to investigate the factors that reduce fetal dose in pregnant patients with breast cancer throughout their radiation treatment.
Akın Ogretici, Aydın Çakır, Uğur Akbaş, Canan Köksal, Ümmühan Kalafat, Makbule Tambaş, Hatice Bilge   +6 more
doaj   +1 more source

Digital orthodontic radiographic set versus cone-beam computed tomography: an evaluation of the effective dose

Dental Press Journal of Orthodontics
Objective: The aim of this study was to compare the equivalent and effective doses of different digital radiographic methods (panoramic, lateral cephalometric and periapical) with cone-beam computed tomography (CBCT).
Lillian Atsumi Simabuguro Chinem, Beatriz de Souza Vilella, Cláudia Lúcia de Pinho Maurício, Lucia Viviana Canevaro, Luiz Fernando Deluiz, Oswaldo de Vasconcellos Vilella   +5 more
doaj   +1 more source

EXPERIMENTAL DETERMINATION OF DOSE CONVERSION COEFFICIENTS FOR EXTERNAL RADIATION EXPOSURE WITH GAMMA EMITTING RADIONUCLIDES

Радиационная гигиена, 2015
In the present paper an Alderson RANDO phantom have been used to experimentally determine conversion coefficients for external exposure. A limited number of exposure situations were investigated: rotational geometry with different radiation point sources
C. Bernhardsson
doaj  

Temporal assessment of radiation exposure to uterus and ovaries in simulated scopy during hip fracture repair: A phantom study

Journal of Radiation Research and Applied Sciences
This study systematically explores the temporal variations in radiation dose incurred by reproductive organs during simulated scopy procedures. Focusing on a simulated scenario of repairing a fictitious right hip fracture, the investigation utilizes the ...
Osman Günay, İsmail Canturk, Eylem Kekeç, S. Hilmi Aksoy   +3 more
doaj   +1 more source

Comparison of the Absorbed Dose of Target Organs in Conventional and Digital Lateral Cephalometric Radiography

Journal of Islamic Dental Association of Iran, 2013
Background and Aim: Due to the widespread use of lateral cephalometric radiography especially in orthodontic therapy and orthognathic surgery, obtaining radiographs of high quality with the least amount of radiation exposure is of utmost importance.
Ahmad reza Talaeipour, Shirin Sakhdari, Mansour Jaffarizadeh, Maryam Mirzaei, Sahar Talebi, Maziar Talaeipour   +5 more
doaj  

Delection of Radiotherapy Doses by Rando-Phantom in Eyes of Patients with Head and Neck Cancers

Eurasian Journal of Medicine, 2019
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Dursun Dede, Ercan Balcı, Timur Koca, Tülin Erem, Mehmet Koç   +4 more
doaj  

Evaluation of Calculation Errors of Treatment Planning System in Dose Distribution of Electron Beams inside the Lung in Three-Dimensional Conformal Radiation Therapy (3D-CRT)

مجله دانشکده پزشکی اصفهان, 2017
Background: Calculation of dose distribution of electron beams within in homogeneities may be complex for some of treatment planning systems (TPS). The aim of this study was to investigate the calculation errors of targeted image-guided radiation therapy
Mohammad Bagher Tavakoli, Hossein Taheri, Ali Akhavan   +2 more
doaj  

Comparison of EBT and EBT3 RadioChromic Film Usage in Parotid Cancer Radiotherapy

Journal of Biomedical Physics and Engineering, 2016
Background: EBT and EBT3 radioChromic films have been used in radiotherapy dosimetry for years. Objective: The aim of the current study is to compare EBT and EBT3 radioChromic films in dosimetry of radiotherapy fields for treatment of parotid cancer.
Bahreyni Toossi M. T, Khorshidi F., Ghorbani M., Mohamadian N., Davenport D.   +4 more
doaj  

Calculation of Organ Dose Distribution (in-field and Out-of-field) in Breast Cancer Radiotherapy on RANDO Phantom Using GEANT4 Application for Tomographic Emission (Gate) Monte Carlo Simulation. [PDF]

J Med Signals Sens
Behmadi M, Toossi MTB, Nasseri S, Ravari ME, Momennezhad M, Gholamhosseinian H, Mohammadi M, Mdletshe S.   +7 more
europepmc   +1 more source

Universal Fiducial Markers for Multi-Modal Radiotherapy. [PDF]

Int J Part Ther
Liu J, Bamberger C, Iqbal N, Reynolds K, Shah S, Li X, Wang P, Fan J, Chawla A, Choe K, Kim D, Rahimi R.   +11 more
europepmc   +1 more source