Abstract #2363
Rapid measurement of subtle sub-one-percent changes in transmitter output and receive gain to monitor scanner stability
Jackson J, Tofts P, Tozer D
Institute of Neurology
MR scanner signal instability introduces errors in the quantitative measurement of MR parameters. Here we show new ways of monitoring very small fllip angle and receive changes (<1%) that are rapid and precise using an EPI variant of the Double Angle Method (DAM) and a Noise Image. The method, when combined with temperature measurements of the scanner hardware components will assist in identifying and addressing sources of signal drift in MRI
