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Image noise reduction on the EMI 7070 CT scanner by the reduction of the noise resident in the CT wedge profiles
Author(s) -
Mott David J.
Publication year - 1984
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 - 10.1118/1.595549
Subject(s) - scanner , offset (computer science) , image quality , wedge (geometry) , noise reduction , emi , noise (video) , reduction (mathematics) , image noise , acoustics , materials science , nuclear medicine , medicine , physics , optics , computer science , electromagnetic interference , mathematics , artificial intelligence , image (mathematics) , telecommunications , geometry , programming language
On the EMI 7070 CT scanner the data contained in the wedge files has been averaged resulting in a 6% reduction in the noise content of images. This noise reduction can either be used to improve image quality or can be offset by reducing the x‐ray tube current by 12%. The averaging method will be outlined and its rationale discussed.