Koninklijke Philips Corporation N.v.

Konstantin Willer

Thomas Koehler

Roland Proksa

Andriy Yaroshenko

Peter Benjamin Theodor Noel

Daniela Muenzel

Franz Josef Pfeiffer

Maximilian Von Teuffenbach

Fabio De Marco

Lukas Benedict Gromann

Alexander André Fingerle

Peter Benjamin Theodor Nöel

Julia Herzen

The present invention relates to acquiring reference scan data for X-ray phase-contrast imaging and/or X-ray dark-field imaging. Therefore an X-ray detector () is arranged opposite an X-ray source () across an examination region () with a grating arrangement () arranged between the X-ray source () and the X-ray detector (). During an imaging operation without an object in the examination region () the grating arrangement () is moved in a scanning motion to a number of different positions (a) relative to the X-ray detector () whilst the X-ray detector () remains stationary relative to the examination region () such that in the scanning motion a series of fringe patterns is detected by the X-ray detector (). The scanning motion is repeated for a different series of fringe patterns. This allows acquiring reference scan data required for calibration of an X-ray imaging device ('&#x2033;) with less scanning motions.

X-ray imaging reference scan

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

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Hamburg, Germany

Konstantin Willer