Table 5.

Non-absolute and absolute relative change (RC), structural similarity index measure (SSIM) and peak signal-to-noise ratio (PSNR) of whole body [¹⁸F]-FDG K_i and DV images using sPBIF

		Sensitivity mode	RC (%)	Absolute RC (%)	SSIM	PSNR (dB)
Ki	45–65 min p.i.	HS	0.2 ± 0.2	0.8 ± 0.4	0.999 ± 0.001	75.5 ± 3.9
		UHS	0.3 ± 0.3	0.8 ± 0.3	0.999 ± 0.001	75.7 ± 4.1
	50–65 min p.i.	HS	6.8 ± 2.4	7.3 ± 2.4	0.999 ± 0.001	64.5 ± 3.2
		UHS	6.9 ± 2.3	7.5 ± 2.5	0.999 ± 0.001	64.5 ± 3.3
	55–65 min p.i.	HS	18.6 ± 5.7	19.2 ± 5.8	0.997 ± 0.002	59.0 ± 2.7
		UHS	19.1 ± 6.1	19.7 ± 6.2	0.997 ± 0.002	59.2 ± 2.7
DV	45–65 min p.i.	HS	1.5 ± 0.9	1.6 ± 0.8	0.997 ± 0.002	73.1 ± 9.8
		UHS	1.4 ± 0.7	1.5 ± 0.7	0.997 ± 0.002	72.4 ± 9.0
	50–65 min p.i.	HS	0.4 ± 3.6	6.6 ± 2.9	0.953 ± 0.027	61.7 ± 11.4
		UHS	0.1 ± 3.1	6.3 ± 2.4	0.956 ± 0.026	61.2 ± 10.6
	55–65 min p.i.	HS	0.2 ± 7.4	13.7 ± 6.3	0.898 ± 0.036	56.6 ± 10.7
		UHS	-0.1 ± 6.8	13.6 ± 5.7	0.903 ± 0.035	56.0 ± 9.7