Patent · US Active

Multi-tube imaging system scatter correction

US7680241B2 · kind B2 · utility

6Cited by

2References

28Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Bernd David · Henstedt-Ulzburg, DE
Michael Grass · Hanstedt, DE
Astrid Lewalter · Aachen, DE
Rainer Pietig · Malsch, DE

Key dates

Filing date	Jun 13, 2007
Grant date	Mar 16, 2010
Priority date	—
Expiry date	Jun 13, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B6/583
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A computed tomography reconstruction method includes concurrently emitting radiation from at least two x-ray sources (14), switching the output state of each of the at least two x-ray sources (14) within a plurality of respective cross scatter sampling intervals (50, 52, 54, 56) and detecting with a corresponding one of the sets of detectors (24) cross scatter radiation emitted by the other at least two x-ray sources (14), wherein the cross scatter sampling intervals are angularly spaced over a plurality of frames to allow the at least two x-ray sources (14) to concurrently emit radiation throughout at least one frame, deriving scatter correction data for each set of detectors (24) from corresponding cross scatter samples, scatter correcting the projection data with corresponding scatter correction data, and reconstructing the scatter corrected projection data to generate at least one image.

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