DocumentCode
545140
Title
CT motion artifact correction using pixel-specific back-projection
Author
Ritchie, Cameron J. ; Kim, Yongmin ; Crawford, Carl R. ; Godwin, J.David
Author_Institution
Department of Bioengineering, University of Washington, SB-05 Seattle, Washington 98195
Volume
5
fYear
1992
fDate
Oct. 29 1992-Nov. 1 1992
Firstpage
1782
Lastpage
1783
Abstract
To reduce artifacts caused by respiratory motion in chest CT scans, an algorithm called pixel-specific back-projection (PSBP) has been developed. PSBP is an approximate filtered back-projection algorithm that corrects for in-plane motion by performing the reconstruction using a coordinate system that is specific to each pixel. The coordinate systems move according to the in-plane motion in the slice at the time the projection was acquired. PSBP reduced artifacts caused by motion in both simulated and patient scan data.
Keywords
Medical diagnostic imaging; Patents;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location
Paris, France
Print_ISBN
0-7803-0785-2
Electronic_ISBN
0-7803-0816-6
Type
conf
DOI
10.1109/IEMBS.1992.5762038
Filename
5762038
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