Abstract #1669
Comparison of fat content measured by MRI water-fat separation, MR spectroscopy and chemical analysis on salmon
Julien Picaud 1,2 , Guylaine Collewet 1 , Giulio Gambarota 3,4 , and Jerome Idier 2
1
UR TERE, IRSTEA, Rennes, France,
2
IRCCyN,
CNRS, Nantes, France,
3
UMR
1099, INSERM, Rennes, France,
4
LTSI,
Universite de Rennes 1, Rennes, France
The purpose of this study was to compare fat
quantification on fish using MRI water/fat separation
with localized spectroscopy (MRS) and with chemical
analysis. 36 samples inside a wild salmon were used for
MRI vs. MRS and 15 salmon cutlets for MRI vs. chemical
analysis. MRI images and MRS spectra were acquired at
1.5T. We used GRE with 6 echoes and the VarPro
reconstruction method proposed by Hernando (MRM 2010,
63-1). High correlations were found in both cases. Very
good agreement was found between MRI and MRS while and
overestimation of fat content was observed for MRI
versus chemical analysis.
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