公开(公告)号：US20180182131A1

公开(公告)日：2018-06-28

申请号：US15736975

申请日：2016-06-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas KOEHLER ,  Bernhard Johannes BRENDEL ,  Peter NOEL ,  Franz PFEIFFER ,  Maximilian VON TEUFFENBACH

IPC: G06T11/00 ,  A61B6/00

CPC classification number: G06T11/006 ,  A61B6/4208 ,  A61B6/5205 ,  G06T2211/424

Abstract: A system and related method for signal processing. Interferometric projection data reconstructed into one or more images for a spatial distribution of a physical property of an imaged object. The interferometric projection data is derived from signals acquired by an X-ray detector (D), said signals caused by X-ray radiation after interaction of said X-ray radiation with an interferometer and with the object (OB) to be imaged, said interferometer (IF) having a reference phase. A reconstructor (RECON) reconstructs for the image(s) by fitting said data to a signal model by adapting fitting variables, said fitting variables including i) one or more imaging variables for the one or more images and ii), in addition to said one or more imaging variables, a dedicated phase variable for a fluctuation of said reference phase.

公开(公告)号：US20180303436A1

公开(公告)日：2018-10-25

申请号：US15770773

申请日：2016-11-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Roland PROKSA ,  Heiner DAERR ,  Daniela MUENZEL ,  Peter NOEL

IPC: A61B6/03 ,  A61B6/00

Abstract: The invention relates to a method of Computed Tomography imaging comprising: a. Performing a single acquisition of image data from at least two contrast agents into a blood vessel network, a first contrast agent among said at least two contrast agents having been in said blood vessel network for a longer time than a second contrast agent among said at least two contrast agents, b. Processing said image data using K-Edge detection and/or iodine delineation to separate data associated with each contrast agents in order to obtain a concentration map of each contrast agent, c. Determining from said image data a first part of the blood vessel network comprising both the first contrast agent and the second contrast agent, and a second part of the blood vessel network comprising only the first contrast agent, d. Calculating a partial blood volume map of the first part of the blood vessel network based on the total amount of second contrast agent and on the concentration map of the second contrast agent, e. Calculating a partial blood volume map of the second part of the blood vessel network based on the total amount of first contrast agent, on the concentration map of the first contrast agent and on the partial blood volume map of the first part of the blood vessel network.