Figure 1.
Timing diagram of the SCALE-PWI sequence. (A) General structure of SCALE-PWI showing all three modules: calibration modules (explained in B) and dynamic susceptibility contrast (DSC) module. (Panel B) Calibration module of SCALE-PWI showing the inversion (IR) pulse, the fat saturation (Fat Sat) pulses, the excitation pulses with their flip angles, echo time (TE), and effective repetition time (TREffective), for 3 out of 35 image acquisitions. ADC, analog-to-digital converter; EPI, echo-planer imaging; RF, radio frequency; SCALE-PWI, Self-Calibrated Epi Perfusion-Weighted Imaging.