Search Results - "Orton, Nigel P."
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Quality Assurance of Ultrasound Imaging Systems for Target Localization and Online Setup Corrections
Published in International journal of radiation oncology, biology, physics (01-01-2008)“…We describe quality assurance paradigms for ultrasound imaging systems for target localization (UISTL). To determine the absolute localization accuracy of a…”
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The impact of daily shifts on prostate IMRT dose distributions
Published in Medical physics (Lancaster) (01-10-2004)“…It is becoming common clinical practice to shift prostate patients daily based on transabdominal ultrasound (US) or imaging of implanted fiducial markers. This…”
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Feasibility report of image guided stereotactic body radiotherapy (IG-SBRT) with tomotherapy for early stage medically inoperable lung cancer using extreme hypofractionation
Published in Acta oncologica (2006)“…We report on the technical feasibility, dosimetric aspects, and daily image-guidance capability with megavoltage CT (MVCT) of stereotactic body radiotherapy…”
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Technical note: A novel boundary condition using contact elements for finite element based deformable image registration
Published in Medical physics (Lancaster) (01-09-2004)“…Deformable image registration is an important tool for image-guided radiotherapy. Physics-model-based deformable image registration using finite element…”
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On the automated definition of mobile target volumes from 4D-CT images for stereotactic body radiotherapy
Published in Medical physics (Lancaster) (01-11-2005)“…Stereotactic body radiotherapy (SBRT) can be used to treat small lesions in the chest. A vacuum-based immobilization system is used in our clinic for SBRT, and…”
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Clinical assessment of three-dimensional ultrasound prostate localization for external beam radiotherapy
Published in Medical physics (Lancaster) (01-12-2006)“…Three-dimensional ultrasound localization has been performed for external beam prostate treatments at our institution since September 2001. This article…”
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Commissioning and quality assurance of an optically guided three-dimensional ultrasound target localization system for radiotherapy
Published in Medical physics (Lancaster) (01-08-2002)“…Recently, there has been proliferation of image-guided positioning systems for high-precision radiation therapy, with little attention given to quality…”
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IMRT delivery verification using a spiral phantom
Published in Medical physics (Lancaster) (01-09-2003)“…In this paper we report on the testing and verification of a system for IMRT delivery quality assurance that uses a cylindrical solid water phantom with a…”
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QA for RT Supplement: Quality Assurance of Ultrasound Imaging Systems for Target Localization and Online Setup Corrections
Published in International journal of radiation oncology, biology, physics (01-05-2008)“…We describe quality assurance paradigms for ultrasound imaging systems for target localization (UISTL). To determine the absolute localization accuracy of a…”
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Journal Article