Figure 7

GE images of the respiratory motion model. (A) Application of the gradient echo pulse sequence under no motion. (B) Application of the gradient echo pulse sequence on the respiratory motion model without triggering. (C) Application of the CINE GE pulse sequence with triggering on the respiratory motion model for different combinations of phases per cycle and views per segment: 250 phases and 2 views per segment (1^st row), 125 phases and 4 views per segment (2^nd row) and 100 phases and 5 views per segment (3^rd row). (Total number of tissue isochromats 2000000, total number of time-steps for GE: 1280000, for CINE 1^st row: 55200000, for CINE 2^nd row: 27600000, for CINE 3^rd row: 22400000, k-space matrix 256 × 256, FOV 15 cm × 15 cm, slice thickness 10 mm, kernel execution time on the 4×C2075 system for GE: 8 min, for CINE 1^st row: 518 min, for CINE 2^nd row: 258 min, for CINE 3^rd row: 213 min). The entire 3D object was simulated; not just the slice of interest. Contrast has been exaggerated to visualize the residual artifact in the noise floor.