Patent · US Active

Method for producing projective and tomographic phase contrast images with the aid of an X-ray system

US7646843B2 · kind B2 · utility

61Cited by

3References

49Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Popescu · Erlangen, DE
Björn Heismann · Erlangen, DE
Eckhard Hempel · Bad Mergentheim, DE

Key dates

Filing date	Jan 31, 2007
Grant date	Jan 12, 2010
Priority date	—
Expiry date	Oct 4, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B6/027
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method is disclosed for producing projective and tomographic phase contrast images of an examination object, preferably a patient, with the aid of an X-ray system, and a corresponding X-ray system for carrying out this method. In at least one embodiment of the method, X-ray optical grating sets tuned to different energy ranges are used to determine energy-dependent phase shifts upon penetration of an examination object, a difference value is formed from these energy-dependent phase shifts, and tomographic or projective images are produced therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.