公开(公告)号：US10902648B2

公开(公告)日：2021-01-26

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

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：US11116465B2

公开(公告)日：2021-09-14

申请号：US15756602

申请日：2016-09-01

Applicant: KONINKLIJKE PHILIPS N.V. ,  TECHNISCHE UNIVERSITAET MUENCHEN

Inventor： Roland Proksa ,  Alexander André Fingerle ,  Daniela Muenzel ,  Franz Josef Pfeiffer ,  Thomas Koehler ,  Peter Benjamin Theodor Noel ,  Maximilian Von Teuffenbach ,  Julia Herzen ,  Konstantin Willer

IPC: A61B6/00 ,  A61B6/03

Abstract: A method of a virtual X-ray colonoscopy includes scanning (204) a dark-field contrast (144) insufflated colon lumen (140) with an X-ray scanner (110) configured for dark-field-contrast, which generates dark-field-contrasted projection data and attenuation projection data. The dark-field-contrasted projection data and the attenuation projection data are reconstructed (206) into one or more dark-field-contrasted images (148).

公开(公告)号：US10945690B2

公开(公告)日：2021-03-16

申请号：US15738324

申请日：2016-06-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Koehler ,  Gerhard Martens ,  Roland Proksa ,  Hanns-Ingo Maack ,  Udo Van Stevendaal ,  Franz Josef Pfeiffer ,  Peter Benjamin Theodor Noel ,  Maximilian Von Teuffenbach

IPC: G03H5/00 ,  A61B6/00

Abstract: An X-ray imaging apparatus with an interferometer (IF) and an X-ray detector (D). A footprint of the X-ray detector (D) is larger than a footprint of the interferometer (IF). The interferometer is moved in scan motion across the detector (D) whilst the detector (D) remains stationary. Preferably the detector is a 2D full field detector.