25 May 1989 An Efficient Scanning/Sampling Method for Echo Planar Magnetic Resonance Imaging
Author Affiliations +
Abstract
This paper presents an efficient spiral scanning/sampling method and its associated reconstruction algorithm for echo planar Magnetic Resonance Imaging (MRI) systems. The spiral scan data are represented in terms of evenly spaced samples from a nonlinear two-dimensional transformation of the Cartesian spatial frequency domain. This transformation enables us to use unified Fourier reconstruction sampling principles [5] to obtain an accurate reconstruction based on a set of constraints imposed on the spiral parameters. The results are then utilized to develop efficient sampling strategies for spiral scans. Sampling efficiency for spiral data, analogous to the sampling efficiencies of hexagonally and rectangularly sampled data, is defined. A sampling scheme on a spiral is introduced that possesses a uniform sampling efficiency comparable to the sampling efficiency of rectangularly sampled data.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mehrdad Soumekh, Mehrdad Soumekh, } "An Efficient Scanning/Sampling Method for Echo Planar Magnetic Resonance Imaging", Proc. SPIE 1092, Medical Imaging III: Image Processing, (25 May 1989); doi: 10.1117/12.953296; https://doi.org/10.1117/12.953296
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Quantitative Cone-Beam Reconstruction
Proceedings of SPIE (May 25 1989)
Image restoration and diffusion processes
Proceedings of SPIE (June 23 1993)
Reconstruction of magnetic resonance images from EPI data
Proceedings of SPIE (September 14 1993)
Spatiotemporal spiral magnetic resonance imaging
Proceedings of SPIE (May 28 1999)

Back to Top