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   Articles with "ptv" as a keyword



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Potential proton and photon dose degradation in advanced head and neck cancer patients by intratherapy changes

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recommendations! Published in 2017 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12189

Abstract: Abstract Purpose Evaluation of dose degradation by anatomic changes for head‐and‐neck cancer (HNC) intensity‐modulated proton therapy (IMPT) relative to intensity‐modulated photon therapy (IMRT) and identification of potential indicators for IMPT treatment plan adaptation. Methods For… read more here.

Keywords: degradation; impt; dose degradation; target ... See more keywords
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Full automation of spinal stereotactic radiosurgery and stereotactic body radiation therapy treatment planning using Varian Eclipse scripting

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recommendations! Published in 2020 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13017

Abstract: Abstract The purpose of this feasibility study is to develop a fully automated procedure capable of generating treatment plans with multiple fractionation schemes to improve speed, robustness, and standardization of plan quality. A fully automated… read more here.

Keywords: v100; treatment; ptv; plan ... See more keywords
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Automatic treatment planning for VMAT‐based total body irradiation using Eclipse scripting

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recommendations! Published in 2021 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13189

Abstract: Abstract The purpose of this work is to establish an automated approach for a multiple isocenter volumetric arc therapy (VMAT)‐based TBI treatment planning approach. Five anonymized full‐body CT imaging sets were used. A script was… read more here.

Keywords: treatment planning; treatment; vmat based; ptv ... See more keywords
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Target margin design through analyzing a large cohort of clinical log data in the cyberknife system

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recommendations! Published in 2022 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13476

Abstract: Abstract Purpose Calculating the adequate target margin for real‐time tumor tracking using the Cyberknife system is a challenging issue since different sources of error exist. In this study, the clinical log data of the Cyberknife… read more here.

Keywords: ptv; margin; ptv margins; cyberknife system ... See more keywords
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A retrospective multi-center feasibility study of a new PTV margin estimation approach for moving targets using CyberKnife log files.

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

DOI: 10.1002/acm2.13975

Abstract: PURPOSE This study investigates a new approach for estimating the planning target volume (PTV) margin for moving tumors treated with robotic stereotactic body radiotherapy (SBRT). METHODS In this new approach, the covariance of modeling and… read more here.

Keywords: ptv margin; ptv; version; approach ... See more keywords
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Does selective pleural irradiation of malignant pleural mesothelioma allow radiation dose escalation?

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recommendations! Published in 2017 at "Strahlentherapie und Onkologie"

DOI: 10.1007/s00066-017-1108-y

Abstract: BackgroundAfter lung-sparing radiotherapy for malignant pleural mesothelioma (MPM), local failure at sites of previous gross disease represents the dominant form of failure. Our aim is to investigate if selective irradiation of the gross pleural disease… read more here.

Keywords: von; mpm; irradiation; dose escalation ... See more keywords
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Breathing-motion-compensated robotic guided stereotactic body radiation therapy

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recommendations! Published in 2017 at "Strahlentherapie und Onkologie"

DOI: 10.1007/s00066-017-1204-z

Abstract: PurposeWe retrospectively evaluated the patterns of failure for robotic guided real-time breathing-motion-compensated (BMC) stereotactic body radiation therapy (SBRT) in the treatment of tumors in moving organs.Patients and methodsBetween 2011 and 2016, a total of 198 patients… read more here.

Keywords: robotic guided; gy10; motion compensated; ptv ... See more keywords
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Using uncertainty to improve pressure field reconstruction from PIV/PTV flow measurements

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recommendations! Published in 2020 at "Experiments in Fluids"

DOI: 10.1007/s00348-020-02974-y

Abstract: Abstract A novel pressure reconstruction method is proposed to use the uncertainty information to improve the instantaneous pressure fields from velocity fields measured using particle image velocimetry (PIV) or particle tracking velocimetry (PTV). First, the… read more here.

Keywords: uncertainty; pressure field; velocity; flow ... See more keywords
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Spatiotemporally resolved heat transfer measurements in falling liquid-films by simultaneous application of planar laser-induced fluorescence (PLIF), particle tracking velocimetry (PTV) and infrared (IR) thermography

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recommendations! Published in 2019 at "Experimental Thermal and Fluid Science"

DOI: 10.1016/j.expthermflusci.2018.11.001

Abstract: Abstract We present an optical technique that combines simultaneous planar laser-induced fluorescence (PLIF), particle tracking velocimetry (PTV) and infrared (IR) thermography for the space-and time-resolved measurement of the film-height, 2-D velocity and 2-D free-surface temperature… read more here.

Keywords: heat; ptv; liquid films; film ... See more keywords
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Robustness of elective lymph node target coverage with shrinking Planning Target Volume margins in external beam radiotherapy of locally advanced cervical cancer

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recommendations! Published in 2019 at "Physics and Imaging in Radiation Oncology"

DOI: 10.1016/j.phro.2019.06.002

Abstract: Background and purpose Image-Guidance decreases set-up uncertainties, which may allow for Planning Target Volume (PTV) margins reduction. This study evaluates the robustness of the elective lymph node target coverage to translational and rotational set-up errors… read more here.

Keywords: target coverage; volume; ptv; target ... See more keywords
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Identification of Volatile Components in Tea Infusions by Headspace–Programmed Temperature Vaporization–Gas Chromatography–Mass Spectrometry (HS–PTV–GC–MS) with Chemometrics

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recommendations! Published in 2020 at "Analytical Letters"

DOI: 10.1080/00032719.2020.1721004

Abstract: Abstract In this work, the two-step headspace (HS) technique was applied to determine the actual volatile compositions of tea infusions. In order to eliminate the influence of water vapor to the gas chromatography-mass spectrometry (GC-MS)… read more here.

Keywords: gas chromatography; mass spectrometry; ptv; chromatography mass ... See more keywords