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Reduced k-Space Encoding for Dual Contrast TrueFISP Imaging

Robert Merrifield, J. Keegan, D.N. Firmin, Guang-Zhong Yang

Journal Article
Journal of Magnetic Resonance Imaging
Volume 49
Issue 3
pp.595–598
March, 2003
Abstract

Dual-contrast TrueFISP imaging relies on the use of two RF pulses with different RF flip-angles for enhancing image contrast and performing automatic tissue classification based on multispectrum clustering. The original technique, however, involves an extended imaging time, which limits its clinical application. The purpose of this study is to compare the applicability of two reduced k-space sampling techniques, reduced imaging using generalized series reconstruction (RIGR) and key-hole imaging, for minimizing the imaging time required. The performance of both approaches was evaluated theoretically and practically using 3D cine datasets acquired from eight asymptomatic subjects.

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