Global ETD Search
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Showing 1 to 3 of 3 for “"mean excitation energy"”.
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Evaluation and Clinical Implementation of a Dual-Energy CT Stopping-Power Ratio Mapping Technique for Proton-Therapy Treatment Planning
… calibrationtechnique based on single-energy CT (SECT) for direct estimation of patient-specific SPR distribution from vendor-reconstructed Hounsfield Unit (HU) images. Unfortunately, this approach fails to disambiguate the dependence of HU on differences in density and composition of …
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Alternating Minimization Algorithms for Dual-Energy X-Ray CT Imaging and Information Optimization
… based on estimates of the electron density and mean excitation energy. In turn, the estimates of the linear attenuation coefficients or the component images from dual-energy CT image reconstruction are used</p><p>to estimate the electron density and mean excitation. Therefore, the quantitative …
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Dual Energy Computed to mography For Proton Therapy Treatment Planning
… We propose to solve this problem by using dual energy CT (DECT) and hypothesize that the range uncertainty can be reduced by a factor of two from currently used value of 3.5%.</p> <p>A MATLAB program was developed to calculate the electron density ratio (EDR) and effective atomic number (EAN) …