公开(公告)号：US20170213364A1

公开(公告)日：2017-07-27

申请号：US15004293

申请日：2016-01-22

Applicant: General Electric Company

Inventor： Jonathan Immanuel SPERL ,  Dirk BEQUE

IPC: G06T11/00 ,  G01N23/04

CPC classification number: G06T11/003 ,  A61B6/00 ,  A61B6/484 ,  G01N23/046 ,  G01N2223/401 ,  G06T2211/40

Abstract: Reconstructing under-sampled PCT data includes obtaining under-sampled scan data of a subject-under-test, the object scan performed on a phase contrast computed tomography (PCT) system, performing a regularized Fourier analysis on the under-sampled scan data, correcting for one or more PCT system contributions to the under-sampled scan data by dividing the computed Fourier coefficients by Fourier coefficients representative of the one or more PCT system contributions, obtaining at least one of an absorption sinogram, a differential phase sinogram, and a dark field sinogram from the corrected Fourier coefficients, and performing tomographic reconstruction on the obtained absorption sinogram, the obtained differential phase sinogram, and the obtained dark field sinogram. A system and non-transitory computer readable medium are also disclosed.