Fig. 3.

Example of how motion timing with respect to 3D data acquisition affects image quality. Panel A shows the motion metrics during the data acquisition of the 69th and 70th image volumes from Volunteer #2 (1.5 mm resolution, PMC off, fast motion), where the motion is occurring in the peripheral partitions for volume 69 and in the central partitions for volume 70. Panels B–E display one slice of the reconstructed volume, showing the reference image (B), the reconstructed volumes 69 and 70 (C and E), and the difference images (D and F).