. Author manuscript; available in PMC: 2014 Nov 7.

Published in final edited form as: Phys Med Biol. 2013 Oct 10;58(21):7625–7646. doi: 10.1088/0031-9155/58/21/7625

Table 7.

The ranking of visual image quality achieved by the motion correction strategies based on the consensus reading by human observers. Strategies ranked were (1) External tracking only (EXT) (2) data-driven using PI (PI) (3) data-driven using PI and external tracking prior information (PIwEXT) (4) data-driven using NMI (NMI) (5) datadriven using NMI and external tracking prior information (NMIwEXT) (6) No motion correction (UNC).

Patient Study	Ranking^Ϯ
1	`PI ≡ PIwEXT>EXT>NMI ≡ NMIwEXT>UNC`
2	`EXT ≅ PI ≡ PIwEXT ≡ NMIwEXT>NMI>UNC`
3	`EXT>PI ≡ PIwEXT ≡ NMI>NMIwEXT>UNC`
4	`PI ≡ NMI ≡ NMIwEXT ≡ PIwEXT ≡ EXT ≡ UNC`
5	`EXT>PI ≡ PIwEXT>NMI ≡ NMIwEXT>UNC`

^Ϯ

No perceivable difference : ≡, slightly better : ≅, significantly better : >