| MX | matrix |
|---|---|
| PPMS | Performax's Personal Matrix System |
| RAM | random-access memory; rapid alternating movements; rectus abdominis muscle; rectus abdominis myocuta... |
| RAM-FAST | reduced acquisition matrix-Fourier acquired steady state |
| TRAM | transport remote acquisition monitor; transverse rectus abdominis muscle; Treatment Rating Assessmen... |