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Can I read Effects of gradient anisotropy in MRI on EtoBox?
Effects of gradient anisotropy in MRI by Dr. Bernd Aldefeld; Peter Börnert is a Medicine article available to read on EtoBox.
What is Effects of gradient anisotropy in MRI about?
A gradient system is anisotropic if the impulse responses of at least two of the gradient channels, x, y, or z, differ from each other. Such an undesired condition may arise, for example, from differences between the gradient channels with respect to eddy currents or from unbalanced time delays in the electronic components. Depending on the degree of anisotropy, the actual gradient then deviates from the nominal, desired gradient under certain oblique orientations during the transient periods of gradient switching. The adverse consequence is degradation of image quality, such as distortion, ghosting, and blurring. In this paper, a theoretical analysis is given of the basic effects. Furthermore, the implications for the MRI process and possible correction methods are described. The effects of anisotropy are shown experimentally for echo-planar imaging and two-dimensional selective RF excitation with spiral gradient pulses.
Who reads Effects of gradient anisotropy in MRI?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- Dr. Bernd Aldefeld; Peter Börnert
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0740-3194)
- Published
- 1998
- Language
- EN
- Field
- Medicine (Health Sciences)