Task-driven acquisition in anisotropic x-ray dark-field tomography

Theodor Cheslerean Boghiu, Franz Pfeiffer, Tobias Lasser

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

Anisotropic X-ray Dark-field Tomography (AXDT) is a novel imaging modality aimed at the reconstruction of spherical scattering functions in every three-dimensional volume element, based on the directional X-ray dark-field contrast as measured by an X-ray grating interferometer. In this work, we re-derive a detectability index for the AXDT forward model directly using the spherical function formulation, and use it to compute optimized acquisition trajectories using a greedy algorithm. The results demonstrate that the optimized trajectories can represent task-specific features in AXDT accurately using only a fraction of the data.

OriginalspracheEnglisch
Titel15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Redakteure/-innenSamuel Matej, Scott D. Metzler
Herausgeber (Verlag)SPIE
ISBN (elektronisch)9781510628373
DOIs
PublikationsstatusVeröffentlicht - 2019
Veranstaltung15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Fully3D 2019 - Philadelphia, USA/Vereinigte Staaten
Dauer: 2 Juni 20196 Juni 2019

Publikationsreihe

NameProceedings of SPIE - The International Society for Optical Engineering
Band11072
ISSN (Print)0277-786X
ISSN (elektronisch)1996-756X

Konferenz

Konferenz15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Fully3D 2019
Land/GebietUSA/Vereinigte Staaten
OrtPhiladelphia
Zeitraum2/06/196/06/19

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