Analysis of Saturated T2 Curves for Rapid Relaxometry Measurements in PRESS Localization

Jack Knight-Scott¹

The Rapid Relaxometry through Acquisition of Multiple Saturated T₂ Curves (RRAMSC) technique is, in theory, limited to STEAM localization, where the recovery period allows specific control of the degree of longitudinal magnetization that recovers. Because PRESS lacks a well-defined recovery period, RRAMSC trade-off between changes in the TE and TR, to keep saturation effects constant, cannot be calculated over a generic range of different T₁ values. Here we examine the effects of approximating the recovery when employing RRAMSC with PRESS localization.