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Algebraic Reconstruction of Source and Attenuation in SPECT Using First Scattering Measurements

Abstract:

Here we present an Algebraic Reconstruction Technique (ART) for solving the identification problem in Single Photon Emission Computed Tomography (SPECT). Traditional reconstruction for SPECT is done by finding the radiation source, nevertheless the attenuation of the surrounding tissue affects the data. In this context, ballistic and first scattering information are used to recover source and attenuation simultaneously. Both measurements are related with the Attenuated Radon Transform and a Klein-Nishina angular type dependency is considered for the scattering. The proposed ART algorithm allow us to obtain good reconstructions of both objects in a few number of iterations.

Año de publicación:

2018

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Conference Object

    Estado:

    Acceso restringido

    Áreas de conocimiento:

    • Optimización matemática

    Áreas temáticas:

    • Álgebra
    • Luz y radiaciones afines
    • Física aplicada

    Contribuidores:

    Osses A.Osses A.
    Evelyn CuevaEvelyn Cueva
    Quintana J.C.Quintana J.C.
    Tejos C.Tejos C.
    Irarrazaval P.Irarrazaval P.
    Courdurier M.Courdurier M.