EP 1709463 A1 20061011 - ASYMMETRIC AXIAL FILTER FOR PET IMAGING SYSTEMS
Title (en)
ASYMMETRIC AXIAL FILTER FOR PET IMAGING SYSTEMS
Title (de)
ASYMMETRISCHES AXIALFILTER FÜR PET-BILDGEBUNGSSYSTEME
Title (fr)
FILTRE AXIAL ASYMETRIQUE POUR SYSTEMES D'IMAGERIE TEP
Publication
Application
Priority
- IB 2005050058 W 20050105
- US 53668304 P 20040115
Abstract (en)
[origin: WO2005071439A1] A radiographic imaging system (10) includes an array of detectors (16) for detecting emission radiation emitted from a subject (14). The detectors (16) are arranged around a circular bore (18), defining a field of view of the imaging system (10). End shields (40) are disposed at an entrance and at an exit of the axial field-of-view (18) defining a subject receiving aperture (46). One or more septa (50), partially covering the circumference, shields the detectors (16) from the radiation originating outside of the axial field-of-view (18) as well as the body scattered radiation. Septa (50) are spread out sparsely across the field of view such that a ratio of the area shielded by the septa (50) to the field of view is negligible. The patient aperture (46) is increased without compromising the 3D imaging.
IPC 8 full level
G01T 1/29 (2006.01)
CPC (source: EP)
A61B 6/037 (2013.01); G01T 1/1615 (2013.01); G01T 1/2985 (2013.01)
Citation (search report)
See references of WO 2005071439A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005071439 A1 20050804; CN 100498380 C 20090610; CN 1910475 A 20070207; EP 1709463 A1 20061011; JP 2007523322 A 20070816
DOCDB simple family (application)
IB 2005050058 W 20050105; CN 200580002486 A 20050105; EP 05702588 A 20050105; JP 2006548514 A 20050105