Results 11 to 20 of about 12,884 (200)

Rectal dosimetry in intracavitary applications of cervix carcinoma: Comparison of two methods [PDF]

open access: yesArchive of Oncology, 2002
BACKGROUND: Brachytherapy of cervix carcinoma often results in high doses to surrounding structures, such as rectum and bladder. Therefore, these organs should be closely monitored.
Baucal Milutin   +2 more
doaj   +1 more source

Palliative intensity modulated radiotherapy of bone metastases based on diagnostic instead of planning computed tomography scans

open access: yesPhysics and Imaging in Radiation Oncology, 2023
Background and purpose: Radiotherapy (RT) treatment planning is as a standard based on a computed tomography (CT) scan obtained at the planning stage (pCT), while most of the decisions whether to treat by RT are based on diagnostic CT scans (dCT).
Suvi Larjavaara   +4 more
doaj   +1 more source

Comparison of Synthetic Computed Tomography Generation Methods, Incorporating Male and Female Anatomical Differences, for Magnetic Resonance Imaging-Only Definitive Pelvic Radiotherapy

open access: yesFrontiers in Oncology, 2022
PurposeThere are several means of synthetic computed tomography (sCT) generation for magnetic resonance imaging (MRI)-only planning; however, much of the research omits large pelvic treatment regions and female anatomical specific methods.
Laura M. O’Connor   +9 more
doaj   +1 more source

On Prediction of Cardio-Pulmonary Complications during Hypofractionated versus Conventional Fractionated Regimens of Left Breast Radiation Therapy Using Monte Carlo and Collapsed Cone Convolution Based Algorithms [PDF]

open access: yesIranian Journal of Medical Physics, 2023
Introduction: Due to the challenge of choosing the optimal treatment regimen as well as the accurate dose calculation algorithm (DCA), this study aimed to evaluate the DCAs to compare the conventional fractionation radiotherapy (CFRT) and ...
Sepideh Omidvar   +2 more
doaj   +1 more source

A multi-centre analytical study of small field output factor calculations in radiotherapy

open access: yesPhysics and Imaging in Radiation Oncology, 2018
An audit methodology was developed and applied for output factor (OF) calculations in radiotherapy. The auditees were asked to calculate OFs for field sizes from 10 × 10 cm2 to 2 × 2 cm2.
Krzysztof Chełmiński, Wojciech Bulski
doaj   +1 more source

Dose distribution verification for GZP6 sources: A comparison of Monte Carlo, radiochromic film, and GZP6 treatment planning system [PDF]

open access: yesArchive of Oncology, 2012
Background: Treatment planning systems (TPSs) are used for dose calculations in dose delivery by after loading brachytherapy machines. Such planning systems usually use simplified algorithms in their dose calculations.
Toossi Bahreyni Taghi Mohammad   +4 more
doaj   +1 more source

Optimal postoperative radiotherapy treatment of orbital rhabdomyosarcoma [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2013
Introduction. Rhabdomyosarcoma (RMS) is the most common sarcoma of the soft tissue, mostly affecting the region of head and neck (orbit, paranasal sinus).
Petrović Borislava   +6 more
doaj   +1 more source

Validation of Motorized Wedge Effective Isodose Angle with a 2D Array Detector [PDF]

open access: yesIranian Journal of Medical Physics, 2020
Introduction: Elekta Versa HD linear accelerator is equipped with a universal wedge filter which is a single large physical wedge driven by motors; in other words, motorized wedge. It provides a nominal wedge isodose angle of 60° for the field size of 30×
Jaimin Gamit   +7 more
doaj   +1 more source

A treatment planning study of combined carbon ion-beam plus photon intensity-modulated radiotherapy

open access: yesPhysics and Imaging in Radiation Oncology, 2020
Background and purpose: Combined photon intensity-modulated radiotherapy (IMRT) and sequential dose-escalated carbon ion beam therapy (IBT) is a technically advanced treatment option for head and neck malignancies. We proposed and evaluated an integrated
Christopher Schuppert   +5 more
doaj   +1 more source

Radiotherapy treatment planning: Benefits of CT-MR image registration and fusion in tumor volume delineation [PDF]

open access: yesVojnosanitetski Pregled, 2013
Background/Aim. Development of imaging techniques, computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET), made great impact on radiotherapy treatment planning by improving the localization of target volumes.
Đan Igor   +4 more
doaj   +1 more source

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