Essays about: "PI-method"

Found 2 essays containing the word PI-method.

  1. 1. Implementation of the Weighted Filtered Backprojection Algorithm in the Dual-Energy Iterative Algorithm DIRA-3D

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Markus Tuvesson; [2021]
    Keywords : wFBP; weighted Filtered Backprojection; DIRA-3D;

    Abstract : DIRA-3D is an iterative model-based reconstruction method for dual-energy helical CT whose goal is to determine the material composition of the patient from accurate linear attenuation coefficients (LACs). Possible applications are, for example, to aid in calculations of radiation transport and dose calculations in brachytherapy with low energy photons, and in proton therapy. READ MORE

  3. 2. Extension of DIRA (Dual-Energy Iterative Algorithm) to 3D Helical CT

    University essay from Linköpings universitet/Datorseende

    Author : Magnus Björnfot; [2017]
    Keywords : PI-method; DIRA; DECT;

    Abstract : There is a need for quantitative CT data in radiation therapy. Currently there are only few algorithms that address this issue, for instance the commercial DirectDensity algorithm. In scientific literature, an example of such an algorithm is DIRA. READ MORE