Table 2.

Average reconstruction time (seconds) per slice per iteration (if applicable) for full FOV reconstruction for each method studied here. The reconstruction time is inclusive of computational time by the algorithm, hard disk access time for read/write operations, and any other sources of latency. The finer image-grid uses T-ASD-POCS with quarter in-plane voxel size. All methods were implanted on a GPU (Quadro P6000, NVidia Corporation, Santa Clara, CA).

FDK	FIRST	T-ASD-POCS	Finer image-grid
0.029	0.034	1.25	20.85