Koninklijke Philips Corporation N.v.

Peter Benjamin Theodor Noel

Thomas Koehler

Roland Proksa

Franz Pfeiffer

Maximilian Von Teuffenbach

Hanns-Ingo Maack

Gerhard Martens

Udo Van Stevendaal

Daniela Muenzel

Franz Josef Pfeiffer

Konstantin Willer

Alexander André Fingerle

Julia Herzen

Frank Josef Pfeiffer

Thomas Baum

Dieter Richard Hahn

A method of a virtual X-ray colonoscopy includes scanning () a dark-field contrast () insufflated colon lumen () with an X-ray scanner () 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 () into one or more dark-field-contrasted images ().

Dark-field enhanced virtual x-ray colonoscopy

The present invention relates to a CT imaging system as well as a method for CT imaging is provided. For CT imaging, in practice a scout scan and a main scan of a human subject may be performed. It has been found that a detector signal, provided by a detector which detects the X-ray radiation during the scout scan, may be used on the one hand for determining a respective scout image and on the other hand to determine the bone mineral density of the human subject. Although the scout scan is usually primarily performed for determining the scout image, it is of advantage, if the detector used for detecting the X-ray radiation during the scout scan is formed and/or configured to detect X-ray radiation of a first energy spectrum and to detect X-ray radiation of a different, second energy spectrum. In this case, the detector can provide more precise information about the scout region of the human subject and resulting therefrom in a more precise determination of the bone mineral density. Thus, while determining the scout image and/or while performing further steps, the bone mineral density may be determined, in particular as a background process step, such that the bone mineral density may be provided for further purpose.

CT imaging system and a method for a CT imaging system

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.

Scanning X-ray apparatus with full-field detector

Radiation source and detector arrangement for a differential phase contrast CT scanner, in which the detector tiles are placed asymmetrically such that direct rays, which hit gaps between tiles are sampled by tile centers for the complementary rays. This may provide for good image quality without any approximate processing.

Tiled detector arrangement for differential phase contrast CT

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Unterföhring, Germany

Peter Benjamin Theodor Noel