. Author manuscript; available in PMC: 2016 Oct 28.

Published in final edited form as: Circ Cardiovasc Imaging. 2016 Oct;9(10):e005131. doi: 10.1161/CIRCIMAGING.116.005131

Table 2.

Bland-Altman values and percentage errors for each stepwise change to the image acquisition and analysis technique.

	MEAN VALUES					MAXIMUM VALUES
	Overall mean	Difference		95% limits of agreement	% error	Overall mean	Difference		95% limits of agreement	% error
	Overall mean	Mean	Std. Dev	95% limits of agreement	% error	Overall mean	Mean	Std. Dev	95% limits of agreement	% error
ORIGINAL APPROACH
Whole Valve, ungated PET, non-contrast CT
ORIGINAL Standard Uptake Value	1.523	0.008	0.194	-0.373 to 0.389	26	1.955	0.094	0.263	-0.421 to 0.608	27
ORIGINAL Tissue to Background Ratio (using brachiocephalic)	1.439	0.047	0.451	-0.836 to 0.930	63	1.869	0.154	0.612	-1.045 to 1.354	65
RA blood pool correction
corrected Standard Uptake Value (subtracting RA)	0.425	0.008	0.091	-0.170 to 0.186	43	0.858	0.094	0.168	-0.236 to 0.423	39
Tissue to Background Ratio (using RA)	1.418	-0.002	0.086	-0.171 to 0.167	12	1.842	0.064	0.200	-0.328 to 0.456	22
Most Diseased Segment Approach
Standard Uptake Value	1.652	0.007	0.207	-0.400 to 0.413	25	2.129	0.131	0.265	-0.389 to 0.651	25
Tissue to Background Ratio (using RA)	1.547	-0.005	0.075	-0.151 to 0.142	10	2.012	0.107	0.145	-0.177 to 0.391	14

FINAL APPROACH
RA blood pool, most diseased segment, gated PET, contrast CT
FINAL Standard Uptake Value	1.662	0.044	0.291	-0.527 to 0.615	35	2.528	0.275	0.633	-0.966 to 1.515	50
FINAL Tissue to Background Ratio (using RA)	1.546	-0.046	0.078	-0.199 to 0.107	10	2.385	0.111	0.439	-0.750 to 0.971	37