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Evaluation of edge‐induced streaking artifacts in CT scanners
Author(s) -
Sheridan William T.,
Keller Mark R.,
O'Connor Christopher M.,
Brooks Rodney A.,
Hanson Kenneth M.
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 - 10.1118/1.594673
Subject(s) - streaking , imaging phantom , artificial intelligence , computed tomography , computer vision , enhanced data rates for gsm evolution , iterative reconstruction , computer science , nuclear medicine , optics , physics , medicine , radiology
A phantom is presented which permits the evaluation of streaking artifacts produced in CT reconstructions by abrupt edges. Its application is demonstrated by results obtained from nine CT scanners. It is observed that even in regions where streaking is not readily apparent, edge‐induced artifacts can significantly increase the variance in the reconstruction.