Abstract
It is shown that the flow-sensitive alternating inversion recovery (FAIR) technique is complicated by the effect of radiation damping, leading to problems in calibrating this method on phantoms and to inaccuracies in measured flows. A modified scheme called FAIRER (FAIR excluding radiation damping) is proposed, which suppresses the damping effects by employing very weak magnetic field gradients (0.06 G/cm) during the inversion recovery, spin-echo, and predelay periods. Results on phantoms and in vivo on cat brain are presented that demonstrate that FAIRER effectively solves these problems.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 712-719 |
| Number of pages | 8 |
| Journal | Magnetic resonance in medicine |
| Volume | 40 |
| Issue number | 5 |
| DOIs | |
| State | Published - Nov 1998 |
Keywords
- Arterial spin tagging
- Cerebral blood flow
- Perfusion
- Radiation damping
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging