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A precise CT phantom alignment procedure
Author(s) -
Schneiders Nicholas J.,
Bushong Stewart C.
Publication year - 1980
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594717
Subject(s) - imaging phantom , insert (composites) , medical imaging , computed tomography , partial volume , computer science , biomedical engineering , medical physics , materials science , nuclear medicine , optics , physics , radiology , artificial intelligence , medicine , composite material
Two of the AAPM CT performance phantom inserts require precise alignment. We present a method for aligning an insert which makes use of the partial volume effect. We demonstrate that the procedure is sensitive to tilts of less than one degree and, using the slice thickness insert, allows reproducible positioning.