EP 2637564 A1 20130918 - MEASUREMENT ARRANGEMENT FOR A COMPUTER TOMOGRAPH
Title (en)
MEASUREMENT ARRANGEMENT FOR A COMPUTER TOMOGRAPH
Title (de)
MESSANORDNUNG FÜR EINEN COMPUTERTOMOGRAPHEN
Title (fr)
DISPOSITIF DE MESURE POUR UN TOMOGRAPHE ASSISTÉ PAR ORDINATEUR
Publication
Application
Priority
- DE 102010050949 A 20101110
- EP 2011068201 W 20111018
Abstract (en)
[origin: WO2012062543A1] The invention relates to a method for operating a measurement arrangement for a computer tomograph, which measurement arrangement has a radiation source (2) of invasive radiation and a flat image detector (3; 13) with scintillation layer (15) and a photocell array of photocells (4) for detection of radiation from the radiation source (2), wherein a calibration object (16) is arranged between the radiation source (2) and the flat image detector (3; 13), and at least one radiation image of the calibration object (16) is recorded with the flat image detector (3; 13), and, from known dimensions of the calibration object (16) and from the at least one radiation image, a distortion error, which occurred as a result of a distortion of the flat image detector (3; 13), is determined as a function of the location in the photocell array (device 6). In particular, a radiation image of an object to be measured, recorded with the flat image detector (3; 13), is corrected on the basis of the determined distortion error.
IPC 8 full level
A61B 6/00 (2006.01)
CPC (source: EP US)
A61B 6/4233 (2013.01 - EP US); A61B 6/583 (2013.01 - EP US); G01T 7/005 (2013.01 - US); A61B 6/03 (2013.01 - EP US)
Citation (search report)
See references of WO 2012062543A1
Citation (examination)
US 2003118227 A1 20030626 - WINSOR ROBIN [CA], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010050949 A1 20120510; EP 2637564 A1 20130918; US 2013230150 A1 20130905; WO 2012062543 A1 20120518
DOCDB simple family (application)
DE 102010050949 A 20101110; EP 11772959 A 20111018; EP 2011068201 W 20111018; US 201113884759 A 20111018