Fast proton spectroscopic imaging with high signal-to-noise ratio: Spectroscopic RARE
نویسندگان
چکیده
منابع مشابه
Fast MR Spectroscopic Imaging
MR spectroscopic imaging (MRSI) has become widely available as a research tool for mapping tissue metabolic status. Clinical research applications have been limited by intrinsically low sensitivity and by time-consuming phase encoding techniques that are used with conventional MRSI. The long encoding times limit volume coverage, introduce motion sensitivity and tax patient tolerance. The increa...
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Various pulse sequences for fast proton spectroscopic imaging (SI) using the steady-state free precession (SSFP) condition are proposed. The sequences use either only the FID-like signal S(1), only the echo-like signal S(2), or both signals in separate but adjacent acquisition windows. As in SSFP imaging, S(1) and S(2) are separated by spoiler gradients. RF excitation is performed by slice-sele...
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Introduction In the past, several methods for fast 2D and 3D H MR spectroscopic imaging (MRSI) derived from their corresponding fast MRI methods have been proposed to map the distribution of brain metabolites. Besides echo planar MRSI and spiral MRSI [1-3], various pulse sequences based on the condition of steady state free precession (SSFP) are very promising because of their high signal-to-no...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2002
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.10084