Apparatus for phase-contrast imaging comprising a displaceable X-ray detector element and method

US9066649B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Ewald Roessl · Ellerau, DE
• Klaus Juergen Engel · Aachen, DE
• Gereon Vogtmeier · Aachen, DE
• Dieter Geller · Aachen, DE
• Gerhard Martens · Henstedt-Ulzburg, DE
• Sebastian Schusser · Aachen, DE
• Thomas Koehler · Norderstedt, DE

Key dates

• Filing date: Dec 3, 2010
• Grant date: Jun 30, 2015
• Expiry date: Nov 9, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/4092
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An X-ray image acquisition apparatus employing phase-contrast imaging with enlarged field of view includes an X-ray source, an X-ray detector element having a detector size, a beam splitter grating and an analyzer grating. An object is arrangeable between the X-ray source and detector. The beam splitter grating and the analyzer grating are arrangeable between the X-ray source and detector. The X-ray source, the beam splitter grating, the analyzer grating and the X-ray detector are operatively coupled such that a phase-contrast image of the object is obtainable. The apparatus is configure to acquire a phase-contrast image having a field of view larger than the detector size. The X-ray detector element is displaceable where, by the displacement of the X-ray detector, a phase-contrast image of the enlarged field of view is obtainable.