Background field removal using spherical mean value filtering and Tikhonov regularization

• Published in: Magnetic resonance in medicine Vol. 71; no. 3; pp. 1151 - 1157
• Main Authors: Sun, Hongfu, Wilman, Alan H.
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.03.2014; Wiley Subscription Services, Inc
• Subjects: Age; Algorithms; background artifact; Background Radiation; Brain - anatomy & histology; brain iron; Humans; Image Enhancement - methods; Image Interpretation, Computer-Assisted - methods; Imaging, Three-Dimensional - methods; Male; Middle Aged; Pattern Recognition, Automated - methods; phase imaging; Reproducibility of Results; Sensitivity and Specificity; SHARP; Signal-To-Noise Ratio; susceptibility mapping; Tikhonov regularization

Purpose To introduce a new method for removing background artifacts in field maps and apply it to enhance the accuracy of susceptibility mapping. Methods A field artifact removal method is introduced that is based on the sophisticated harmonic artifact reduction for phase data (SHARP) method exploit...