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Showing 1 to 6 of 6 for “"optical CT"”.
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Application of Optical CT to Estimate the Mass of Macroalgae in a Tank of Water
… a mass estimation system for macroalgae using optical computed tomography. The system consists of a table with a fixed camera and backlighting, which rotates around a container of macroalgae to collect images from various points. The images capture the translucency along various light paths …
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An optical computed tomography scanner for three dimensional gel dosimetry of radiotherapy dose distributions
… must be validated by measurement to ensure correct patient treatments. Traditional radiotherapy dosimeters do not measure dose entirely in 3D. They effectively ‘spot check’ accuracy at discrete points or planes, without the ability to fully visualise measured dose distributions in true 3D. True …
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Cone Beam Optical Computed Tomography-Based Gel Dosimetry
… for the dose delivery. Gel dosimetry is an attractive option for realizing a tissue-equivalent, 3D dose verification tool with high resolution readout capabilities. However, much important work remains to be completed prior to its acceptance in the clinic. The careful development of easily …
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Characterization of The New Xoft Axxent Electronic Brachytherapy Source Using Presage(Tm)
… advances in the burgeoning field of electronic brachytherapy, an accurate method of 3D dosimetry is needed to ensure understanding of dose distributions, which can improve patient care. The aim of this study was to characterize the Xoft Axxent electronic brachytherapy source using …
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Quality Assurance of Advanced Treatment Modalities Using Presage® Dosimeters
… intended calculated dose is being delivered correctly using current techniques that are 2D-based because the resultant dose distributions can differ markedly in various sections of the target. A measurement of composite dose from the entire plan should be included in patient-specific IMRT QA. A …
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Evaluation of Presage® Dosimeters For Brachytherapy Sources and The 3D Dosimetry and Characterization of The New Agx100 125I Seed Model
… model (Theragenics Corporation) was then characterized using PRESAGE<sup>®</sup> following the TG-43 protocol.</p> <p>PRESAGE<sup>®</sup> dosimeters are solid, polyurethane-based, 3D dosimeters doped with radiochromic leuco dyes that produce a linear optical density response to radiation dose. …