Abstract #3121
31 P MRSI of the brain at 3T with an improved 8-channel receive array and Whitened Singular Value Decomposition for optimal combination of 31 P array signals
M.J. van Uden 1 , A. Rijpma 2,3 , C.T. Rodgers 4 , Bart Philips 1 , T.W.J. Scheenen 1 , and A. Heerschap 1
1
Department of Radiology and Nuclear
Medicine, Radboud University Medical Center, Nijmegen,
Gelderland, Netherlands,
2
Department
of Geriatric Medicine, Radboud University Medical
Center, Gelderland, Netherlands,
3
Radboud
Alzheimer Center, Radboud University Medical Center,
Gelderland, Netherlands,
4
OCMR, RDM
Cardiovascular Medicine, University of Oxford, Oxford,
United Kingdom
31
P MRSI provides valuable information on
metabolism in neurological diseases such as Alzheimer
and brain tumors, but suffers from a relatively low SNR.
We present an 8-channel receive array insert in a
31
P/
1
H
send birdcage coil for improved
31
P
MRSI of the brain. For the addition of the array coil
signals we compared the Time-Domain and Whitened
Singular Value Decomposition methods and observed a
better SNR for the latter method. This method together
with the improved head array insert resulted in about a
4fold increase in the SNR of the
31
P
MR spectra compared to the birdcage coil.
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