Fig. 4

Control subject difference images (displayed in arbitrary units) for ventilation (a) and pulsatile perfusion (b) using the NOSER, MEAN, and MEAN with Schur complement post-processing algorithms.

Control subject difference images (displayed in arbitrary units) for ventilation (a) and pulsatile perfusion (b) using the NOSER, MEAN, and MEAN with Schur complement post-processing algorithms.