Articles with "dose rate" as a keyword



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Self-configuring nnU-Net for automatic delineation of the organs at risk and target in high-dose rate cervical brachytherapy, a low/middle-income country's experience.

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Published in 2023 at "Journal of applied clinical medical physics"

DOI: 10.1002/acm2.13988

Abstract: BACKGROUND The high-dose rate (HDR) brachytherapy treatment planning workflow for cervical cancer is a labor-intensive, time-consuming, and expertise-driven process. These issues are amplified in low/middle-income countries with large deficits in experienced healthcare professionals. Automation has… read more here.

Keywords: brachytherapy; dose rate; nnu net; rate ... See more keywords
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Evaluation of a mobile C‐arm cone‐beam CT in interstitial high‐dose‐rate prostate brachytherapy treatment planning

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Published in 2019 at "Journal of Medical Radiation Sciences"

DOI: 10.1002/jmrs.331

Abstract: The aim of this study was to evaluate the suitability of using cone‐beam computed tomography (CBCT) obtained with a mobile C‐arm X‐ray fluoroscopy unit as a single modality for planning of high‐dose‐rate (HDR) prostate brachytherapy… read more here.

Keywords: high dose; prostate brachytherapy; mobile arm; cone beam ... See more keywords
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Determination of the dose rate constant through Monte Carlo simulations with voxel phantoms

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Published in 2018 at "Medical Physics"

DOI: 10.1002/mp.13181

Abstract: PURPOSE The main goal of this study was to determine the dose rate constant of radionuclides used in Nuclear Medicine when they are biodistributed in humans. The secondary goal was to calculate the effective half-life… read more here.

Keywords: medicine; effective half; rate constant; body ... See more keywords
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An extended dose–volume model in high dose‐rate brachytherapy – Using mean‐tail‐dose to reduce tumor underdosage

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Published in 2019 at "Medical Physics"

DOI: 10.1002/mp.13533

Abstract: Purpose High dose–rate brachytherapy is a method of radiotherapy for cancer treatment in which the radiation source is placed within the body. In addition to give a high enough dose to a tumor, it is… read more here.

Keywords: tumor; volume; high dose; model ... See more keywords
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Laser‐driven radiation: Biomarkers for molecular imaging of high dose‐rate effects

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Published in 2019 at "Medical Physics"

DOI: 10.1002/mp.13741

Abstract: Recently developed short‐pulsed laser sources garner high dose‐rate beams such as energetic ions and electrons, x rays, and gamma rays. The biological effects of laser‐generated ion beams observed in recent studies are different from those… read more here.

Keywords: effects laser; high dose; imaging high; radiation ... See more keywords
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Dosimetric accuracy of delivering SBRT using dynamic arcs on Cyberknife

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Published in 2020 at "Medical Physics"

DOI: 10.1002/mp.14090

Abstract: Purpose Several studies have demonstrated potential improvements in treatment time through the use of dynamic arcs for delivery of stereotactic body radiation therapy (SBRT) on Cyberknife. However, the delivery system has a finite accuracy, so… read more here.

Keywords: delivery; target; accuracy; cyberknife ... See more keywords
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Source position measurement by Cherenkov emission imaging from applicators for high-dose-rate brachytherapy.

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Published in 2020 at "Medical physics"

DOI: 10.1002/mp.14606

Abstract: PURPOSE We developed a novel and simple method to measure the source positions in applicators directly for high-dose-rate (HDR) brachytherapy based on Cherenkov emission imaging, and evaluated the performance. METHODS The light emission from plastic… read more here.

Keywords: high dose; source; dose rate; brachytherapy ... See more keywords
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Characterization of an x-ray tube-based ultrahigh dose-rate system for in vitro irradiations.

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Published in 2021 at "Medical physics"

DOI: 10.1002/mp.15234

Abstract: PURPOSE To present an x-ray tube system capable of in vitro ultrahigh dose-rate (UHDR) irradiation of small read more here.

Keywords: system; tube; ray tube; shutter ... See more keywords
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Ultra-high dose rate electron beams and the FLASH effect: from preclinical evidence to a new radiotherapy paradigm.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15442

Abstract: In their seminal paper from 2014, Fauvadon et al. coined the term FLASH irradiation to describe ultra-high-dose-rate irradiation with dose rates greater than 40 Gy/s, which results in delivery times of fractions of a second. The… read more here.

Keywords: ultra high; flash effect; dose rate; dose ... See more keywords
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A quantitative FLASH effectiveness model to reveal potentials and pitfalls of high dose rate proton therapy

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Published in 2022 at "Medical Physics"

DOI: 10.1002/mp.15459

Abstract: Abstract Purpose In ultrahigh dose rate radiotherapy, the FLASH effect can lead to substantially reduced healthy tissue damage without affecting tumor control. Although many studies show promising results, the underlying biological mechanisms and the relevant… read more here.

Keywords: flash effect; dose rate; flash; proton therapy ... See more keywords
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Proton beam dosimetry at ultra-high dose rates (FLASH): evaluation of GAFchromic™ (EBT3, EBT-XD) and OrthoChromic (OC-1) film performances.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15526

Abstract: PURPOSE The ARRONAX cyclotron facility offers the possibility to deliver proton beams from low to ultra-high dose rates (UHDR). As a good control of the dosimetry is a prerequisite of UHDR experimentations, we evaluated in… read more here.

Keywords: ebt3 ebt; dose rate; dose; dosimetry ... See more keywords