Patent · US Expired

Computed tomography method utilizing a conical radiation beam

US6282256A · kind A · utility

85Cited by

2References

7Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Michael Grass · Hanstedt, DE
Roland Proksa · Hamburg, DE

Key dates

Filing date	Sep 21, 1999
Grant date	Aug 28, 2001
Priority date	—
Expiry date	Sep 21, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S378/901
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to a computed tomography method where the examination zone is scanned by means of a conical radiation beam. The reconstruction volume can be enlarged by reconstructing the absorption of voxels in a first sub-volume by means of a first reconstruction algorithm and that of voxels in a second sub-volume by means of a second reconstruction algorithm, the assignment of the voxels to the sub-volumes being performed in such a manner that the secondary conditions for the reconstruction algorithms used for these sub-volumes are satisfied.

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