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Monitor the reproducibility of MR spectroscopy acquisitions and analyses through routine scanning of the SPECTRE phantom.


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The SPECTRE (Spectroscopy Reference) phantom is designed for Quality Assurance measurements of Magnetic Resonance Spectroscopy (MRS).  It contains a set of metabolites found within the brain at physiological concentrations and pH, all housed within a 180mm diameter HDPE sphere.  Up to 30 SPECTRE phantoms can be made from the same batch, providing identical phantoms for use in multi-centre studies.

SPECTRE uses a set of metabolites typically used in MRS QA; however, with the addition of GABA (gamma-Aminobytyric acid) at 2mM to allow performance testing of J-editing sequences.

SPECTRE Information Sheet



Concentration (Concentrations are nominal and are subject to supplier and process variations.)

N-Acetyl-L-aspartic acid (NAA)

12.5 mM

Creatine (Cr)

10.0 mM

Choline Chloride (Cho)

3.0 mM

Myo-inositol (Ins)

7.5 mM

Glutamate (Glu)

12.5 mM

Lactate (Lac)

5.0 mM

GABA (Gab)

2.0 mM

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