Correction of image-phase aberrations in MRI with applications

Jonathan K. Riek; A. Murat Tekalp; Warren E. Smith; Kevin J. Parker

doi:10.1117/12.45216

1 June 1991 Correction of image-phase aberrations in MRI with applications

Jonathan K. Riek, A. Murat Tekalp, Warren E. Smith, Kevin J. Parker

Proceedings Volume 1445, Medical Imaging V: Image Processing; (1991) https://doi.org/10.1117/12.45216
Event: Medical Imaging '91, 1991, San Jose, CA, United States

Abstract

This paper presents a quick and efficient way to detect and correct the linear and constant image-phase terms associated with MR images. We show that this correction provides us with the knowledge of the exact location of the DC term in k-space, which proves to be useful in the detection of x and y motion parameters. In addition, by displaying the real positive part of the image after the proposed correction, we can reduce background noise, motion artifacts and flow artifacts. Examples, analyses and results are provided to demonstrate the usefulness of the proposed detection and correction method.

Citation Download Citation

Jonathan K. Riek, A. Murat Tekalp, Warren E. Smith, and Kevin J. Parker "Correction of image-phase aberrations in MRI with applications", Proc. SPIE 1445, Medical Imaging V: Image Processing, (1 June 1991); https://doi.org/10.1117/12.45216

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