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Intensity correction by subtraction for phased‐array MRA images
Author(s) -
Lee James N.,
Roberts John A.,
Parker Dennis L.,
Tsuruda Jay S.
Publication year - 2000
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/1522-2586(200009)12:3<501::aid-jmri17>3.0.co;2-p
Subject(s) - phased array , subtraction , electromagnetic coil , intensity (physics) , signal (programming language) , digital subtraction angiography , magnetic resonance imaging , physics , noise (video) , image subtraction , signal to noise ratio (imaging) , optics , division (mathematics) , computer science , angiography , image (mathematics) , image processing , radiology , mathematics , artificial intelligence , medicine , telecommunications , antenna (radio) , binary image , arithmetic , quantum mechanics , programming language
A method of intensity correction is described that is particularly useful for magnetic resonance angiography images acquired with phased‐array coils. In this method a low‐pass filtered version of the image is subtracted from the original image to remove signal variations due to the phased‐array coil. This avoids the noise amplification caused by division correction and enhances the signal‐to‐noise ratio of small arteries in maximum intensity projections. J. Magn. Reson. Imaging 2000;12:501–504. © 2000 Wiley‐Liss, Inc.