pulsemed是什么牌子Basic Pulse Sequences

A “bewildering” array of pulse sequences is available for magnetic resonance imaging.¹ Slight variations on these sequences have led to various acronyms. Some pulse sequences are nearly synonymous with or identical to others but have been given different names by different authors. Spin-echo (SE), inversion recovery (IR), short time inversion recovery (STIR), gradient recalled acquisition in the steady state (GRASS), steady-state free precession (SSFP), Carr-Purcell-Meiboom-Gill (CPMG) are but a few in the current literature. On top of that, with each new pulse sequence modified by variations of gradients and acquisition times, equipment manufacturers have coined acronyms for their own particular usage (Appendix A).