Single Voxel MRS Measurements are not Influenced by Swirling Flow in Phantom Solution
Lin C, Kantarci K, Port J, Felmlee J, Jack Jr. C
MR spectrocopy is a useful technique for both diagnosis and research. However, large variations in MRS result are often obsearved because its sensitive to scanner performace and calibration. For quantitative MRS, its necessary to confirm the accuracy through QC tests. While a phantom containing physiological metabolite solution is commonly used for MRSQC, the effect of flow in the solution has been a concern. This work demonstrates that such effect on measured metabolite concentrations is below the level of detection of a typical MRS protocol and, therefore, a solution phantom may be used without waiting for the flow to settle.