نتایج جستجو برای: patient specific quality assurance

تعداد نتایج: 2319441  

2017
Ji Woon Yea Jae Won Park Sung Kyu Kim Dong Youn Kim Jae Gu Kim Chan Young Seo Won Hyo Jeong Man Youl Jeong Se An Oh

This study evaluated the feasibility of utilizing a 3D-printed anthropomorphic patient-specific head phantom for patient-specific quality assurance (QA) in intensity-modulated radiotherapy (IMRT). Contoured left and right head phantoms were converted from DICOM to STL format. Fused deposition modeling (FDM) was used to construct an anthropomorphic patient-specific head phantom with a 3D printer...

Journal: :Physical and Engineering Sciences in Medicine 2021

This study investigates and validates the use of Octavius 4D system for patient specific quality assurance on Halcyon, which is capable rotating at 4 revolutions per minute (RPM). A commercially available PTW was used this had a maximum rotation speed 3 RPM. Initial validation included testing accuracy inclinometer, percent depth doses (PDD), output factors, dose profiles selected static square...

Journal: :Physics and Imaging in Radiation Oncology 2023

Background and purposeThe superior tissue contrast of magnetic resonance (MR) compared to computed tomography (CT) led an increasing interest towards MR-only radiotherapy. For the latter, dose calculation should be performed on a synthetic CT (sCT). Patient-specific quality assurance (PSQA) methods have not been established yet this study aimed assess several software-based solutions.Materials ...

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