Contrast-modified gradient echo imaging using rotary echo preparatory pulses

X. P. Zhu; P. B. Chilvers; C. E. Hutchinson; G. A. Morris; J. M. Hawnaur; J. E. Adams; C. J. Taylor

Contrast-modified gradient echo imaging using rotary echo preparatory pulses

X. P. Zhu, P. B. Chilvers, C. E. Hutchinson, G. A. Morris, J. M. Hawnaur, J. E. Adams, C. J. Taylor

Research output: Contribution to journal › Article › peer-review

Abstract

The use of on-resonance 121 binomial composite pulses in two- or three- dimensional magnetization-prepared gradient-recalled echo magnetic resonance imaging experiments generates rotary echoes, leading to an increase in contrast range that is, in part, determined by the ratio of T2 to T1. In comparison with other fast gradient-recalled echo imaging techniques designed for enhanced T2 contrast, this method is more robust with respect to radiofrequency field inhomogeneity and less sensitive with respect to motion artifacts. Three-dimensional parametric images may be calculated using least- squares fitting based on a simple model for steady-state longitudinal magnetization during the imaging sequences.

Original language	English
Pages (from-to)	193-200
Number of pages	7
Journal	Magma: Magnetic Resonance Materials in Physics, Biology, and Medicine
Volume	5
Issue number	3
Publication status	Published - 1997

Keywords

Fast gradient-recalled echo imaging
Magnetization preparation
MRI
Rotary echo
T2/T1 ratio

Cite this

@article{ff34213e0dad499c8078f989e9035dad,

title = "Contrast-modified gradient echo imaging using rotary echo preparatory pulses",

abstract = "The use of on-resonance 121 binomial composite pulses in two- or three- dimensional magnetization-prepared gradient-recalled echo magnetic resonance imaging experiments generates rotary echoes, leading to an increase in contrast range that is, in part, determined by the ratio of T2 to T1. In comparison with other fast gradient-recalled echo imaging techniques designed for enhanced T2 contrast, this method is more robust with respect to radiofrequency field inhomogeneity and less sensitive with respect to motion artifacts. Three-dimensional parametric images may be calculated using least- squares fitting based on a simple model for steady-state longitudinal magnetization during the imaging sequences.",

keywords = "Fast gradient-recalled echo imaging, Magnetization preparation, MRI, Rotary echo, T2/T1 ratio",

author = "Zhu, {X. P.} and Chilvers, {P. B.} and Hutchinson, {C. E.} and Morris, {G. A.} and Hawnaur, {J. M.} and Adams, {J. E.} and Taylor, {C. J.}",

year = "1997",

language = "English",

volume = "5",

pages = "193--200",

journal = "Magma: Magnetic Resonance Materials in Physics, Biology, and Medicine",

issn = "1352-8661",

number = "3",

}

TY - JOUR

T1 - Contrast-modified gradient echo imaging using rotary echo preparatory pulses

AU - Zhu, X. P.

AU - Chilvers, P. B.

AU - Hutchinson, C. E.

AU - Morris, G. A.

AU - Hawnaur, J. M.

AU - Adams, J. E.

AU - Taylor, C. J.

PY - 1997

Y1 - 1997

N2 - The use of on-resonance 121 binomial composite pulses in two- or three- dimensional magnetization-prepared gradient-recalled echo magnetic resonance imaging experiments generates rotary echoes, leading to an increase in contrast range that is, in part, determined by the ratio of T2 to T1. In comparison with other fast gradient-recalled echo imaging techniques designed for enhanced T2 contrast, this method is more robust with respect to radiofrequency field inhomogeneity and less sensitive with respect to motion artifacts. Three-dimensional parametric images may be calculated using least- squares fitting based on a simple model for steady-state longitudinal magnetization during the imaging sequences.

AB - The use of on-resonance 121 binomial composite pulses in two- or three- dimensional magnetization-prepared gradient-recalled echo magnetic resonance imaging experiments generates rotary echoes, leading to an increase in contrast range that is, in part, determined by the ratio of T2 to T1. In comparison with other fast gradient-recalled echo imaging techniques designed for enhanced T2 contrast, this method is more robust with respect to radiofrequency field inhomogeneity and less sensitive with respect to motion artifacts. Three-dimensional parametric images may be calculated using least- squares fitting based on a simple model for steady-state longitudinal magnetization during the imaging sequences.

KW - Fast gradient-recalled echo imaging

KW - Magnetization preparation

KW - MRI

KW - Rotary echo

KW - T2/T1 ratio

M3 - Article

SN - 1352-8661

VL - 5

SP - 193

EP - 200

JO - Magma: Magnetic Resonance Materials in Physics, Biology, and Medicine

JF - Magma: Magnetic Resonance Materials in Physics, Biology, and Medicine

IS - 3

ER -

Contrast-modified gradient echo imaging using rotary echo preparatory pulses

Abstract

Keywords

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