Global ETD Search
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Showing 1 to 12 of 12 for “"DVH"”.
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Beyond The Dvh - Spatial And Biological Radiotherapy Treatment Planning
… treatment. Further, the concept of Spatial DVH (sDVH) is introduced to evaluate and potentially optimize the spatial dose distribution in the target volume. Finally, generalized equivalent uniform dose is derived from both physical dose distribution (gEUD) and EQD<sub>2</sub> distribution …
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Moment Constraints in Radiation Therapy Planning Optimization Incorporating Patient-Specific Anatomical Geometry
… In inverse planning, dose-volume histogram (DVH) is a key concept for measuring and restricting collateral radiation damage to healthy tissues. Interpreting the DVH as a probability distribution, a framework is proposed to assess the deviation from a reference dose-volume histogram when the …
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Mechanical Energy Harvesting for Powering Distributed Sensors and Recharging Storage Systems
… termed as Direct Vibration Harvester (DVH), the energy is harvested directly from the vibrating source mass rather than a vibrating seismic mass attached to the source increasing the harvesting bandwidth and power density. Four bar magnet and magnetic levitation architectures were …
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Low strength wastewater treatment using emerging anaerobic treatment processes
… which could be resulted from an increasing DvH attaching on the electrode at a higher sulfate concertation contributes more electrons transfer. However, there was no significant electricity production at the ratio of two presumably because sulfate in the anodic chamber obtained all electrons …
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Fractional Labelmap Representation of Anatomical Structures
… affect metrics such as dose volume histograms (DVHs) that are the primary metric for RT plan optimization. The goal of this thesis is to develop fractional labelmaps as a structure representation that preserves more structural information and reduces conversion errors. METHODS: The effect of …
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Head and Neck Cancer Offline Adaptive Radiotherapy Proof-of-Concept Workflow for Low-Resource Clinics Utilizing NTCP
… plan adaptation using dose-volume histogram (DVH) metrics and their Velocity-based workflow. In this study, we demonstrated a proof-of-concept workflow with the same midpoint assessment scheme, but instead utilizing normal tissue complication probability (NTCP) metrics. NTCP values were …
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A Predictive Model for Lung Fibrosis after Irradiation
… 5 C. STATISTICAL ANALYSIS 7 Ⅲ. RESULTS 8 A. DVH AND FIBROSIS VOLUME 8 B. MLD AND FIBROSIS VOLUME 8 C. PATIENT FACTORS ASSOCIATED WITH FIBROSIS VOLUME 11 D. FIBROSIS VOLUME AND REDUCTION OF PULMONARY FUNCTION 11 Ⅳ. DISCUSSION 14 REFERENCES 19 국문요약 26
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Treatment Planning Automation For Rectal Cancer Radiotherapy
… planning methods rely on 1D information from DVH values,2D information from DVH lines,or 3D dose distributions using machine learning for plan optimizations. The project explored the possibility of using deep learning to create 3D dose distributions directly for VMAT treatment plans. The …
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Semi-Artificial Photoelectrochemistry through Perovskite Integration and Elucidation of the Local Environment
… a highly active photocathode. The recombinant DvH [NiFeSe]r hydrogenase was selected due to its relative ease of purification, high activity, relative O₂ tolerance, resistance to H₂, and intrinsic bias for proton reduction. The biocatalyst was immobilised on a hierarchical inverse opal …
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CHARACTERIZATION OF A DUAL FUNCTIONING SAM-I RIBOSWITCH AND TRANS ACTING SMALL RNA IN DESULFOVIBRIO VULGARIS HILDENBOROUGH
… of Dv SIC19 was ongoing, re-annotation of the DvH genome indicated that Dv SIC19 shared both sequence and structural similarity to the SAM-I class of riboswitches. Multiple techniques, both <italic>in vitro</italic> and <italic>in vivo</italic> were used to verify the riboswitch activity of Dv …
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Tailoring the redox enzyme-material interface for enhanced electro- and photocatalytic fuel synthesis
… from Desulfovibrio vulgaris Hildenborough (DvH) is immobilised on a range of charged and neutral self-assembled monolayer (SAM)-modified gold electrodes with varying hydrogen bond (H-bond) donor capabilities. The key factors dominating the activity and stability of the immobilised enzymes …
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Imaging Techniques for Proton Range Determination in Proton Therapy
… was evaluated based on dose-volume histograms (DVHs), the mean dose in clinical target volume (CTV), and maximum dose within serial organs at risk (OARs). No recalculated DVH metric differed by more than 0.37% in 2 of the 3 cases. However, in the third case with the brainstem overlapping the …