DocumentCode
3078450
Title
Corrections of errors in densitometry under simulated in vivo conditions
Author
Solzbach, U. ; Waltenspiel, R. ; Wollschlager, H. ; Zeiher, A.M. ; Just, H.
Author_Institution
Med. Clinic, Freiburg Univ., Germany
fYear
1989
fDate
19-22 Sep 1989
Firstpage
437
Lastpage
438
Abstract
Errors in densitometry due to distortion, scattering, and beam hardening have been eliminated under simulated in vivo conditions. The method was tested by means of an anthropomorphic phantom. The results reveal good agreement between the evaluated relative lumina and the real vessel relations. There is a linear relationship between the integrated profile of gray values and the real cross section. With this procedure the measured cross section contains a mean error of about 5%-7%
Keywords
densitometry; diagnostic radiography; measurement errors; anthropomorphic phantom; beam hardening; cross section; densitometry errors correction; distortion; gray values; integrated profile; linear relationship; medical diagnostic imaging; relative lumina; scattering; simulated in vivo conditions; Anthropomorphism; Distortion measurement; Error correction; Image intensifiers; Imaging phantoms; In vivo; Magnetic field measurement; Medical simulation; X-ray imaging; X-ray scattering;
fLanguage
English
Publisher
ieee
Conference_Titel
Computers in Cardiology 1989, Proceedings.
Conference_Location
Jerusalem
Print_ISBN
0-8186-2114-1
Type
conf
DOI
10.1109/CIC.1989.130588
Filename
130588
Link To Document