Dose reduction potential of using gold fiducial markers for kilovoltage image‐guided radiotherapy
نویسندگان
چکیده
منابع مشابه
Registration free automatic identification of gold fiducial markers in MRI target delineation images for prostate radiotherapy.
PURPOSE The superior soft tissue contrast of magnetic resonance imaging (MRI) compared to computed tomography (CT) has urged the integration of MRI and elimination of CT in radiotherapy treatment (RT) for prostate. An intraprostatic gold fiducial marker (GFM) appears hyperintense on CT. On T2-weighted (T2w) MRI target delineation images, the GFM appear as a small signal void similar to calcific...
متن کاملMethod comparison of ultrasound and kilovoltage x-ray fiducial marker imaging for prostate radiotherapy targeting.
Several measurement techniques have been developed to address the capability for target volume reduction via target localization in image-guided radiotherapy; among these have been ultrasound (US) and fiducial marker (FM) software-assisted localization. In order to assess interchangeability between methods, US and FM localization were compared using established techniques for determination of a...
متن کاملDose Perturbations of Gold Fiducial Markers in the Prostate Cancer Intensity Modulated Proton Radiation Therapy (IMPT)
The objective of this study is to investigate the dose perturbations introduced by the implanted gold fiducial markers in the prostate cancer intensity modulated proton therapy (IMPT) and the impacts of different plan designs on the perturbations. Five proton plans: a single lateral field 3D-modulation (3D-mod) plan, 2 fields laterally opposing 3D-mod plan, 6-, 9-, and 18-field distal edge trac...
متن کاملIntraprostatic fiducial markers: a potential application for ultrasound-guided radiotherapy in prostate cancer
We report on a two-phase test performed to assess the ability of the ultrasound-based B-mode acquisition and targeting (BAT) trans-abdominal system to identify non-dedicated fiducial markers implanted into the prostate gland for subsequent image-guided radiotherapy.Although further investigation is warranted in order to identify the optimal echogenic marker and to define its potential use for i...
متن کاملDosimetry and Radioenhancement Comparison of Gold Nanoparticles in Kilovoltage and Megavoltage Radiotherapy using MAGAT Polymer Gel Dosimeter
Background: Numerous unique characteristics of the nanosized gold, including high atomic number, low toxicity, and high biocompatibility make it one of the most appropriate nanostructures to boost radiotherapy efficacy. Many in-vivo and in-vitro investigations have indicated that gold nanoparticles (AuNPs) can significantly increase tumor injuries in low kilovoltage radiotherapy. While deep-lyi...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2020
ISSN: 1526-9914,1526-9914
DOI: 10.1002/acm2.13023