EJNMMI Research

Table 4 Bias, Prearson’s correlation (R), and Lin’s concordance (ccc) between first-pass PET and myocardial SPECT LV functional parameters according to the LV segmentation threshold

From: Feasibility of biventricular volume and function assessment using first-pass gated ¹⁵O-water PET

Threshold (%)	LV EDV (mL)			LV ESV (mL)			LV SV (mL)			LV EF (%)
Threshold (%)	Bias	R	ccc	Bias	R	ccc	Bias	R	Conc.	Bias	R	ccc
20	+ 12	0.89	0.83	+ 14	0.86	0.69	− 2	0.67	0.64	− 10	0.66	0.45
25	+ 7	0.89	0.86	+ 9	0.86	0.79	− 2	0.67	0.65	− 7	0.69	0.56
30	+ 1	0.89	0.88	+ 4	0.87	0.85	− 3	0.67	0.65	− 4	0.67	0.61
35	− 5	0.89	0.87	− 1	0.86	0.85	− 4	0.68	0.65	− 2	0.66	0.64
40	− 11	0.89	0.81	− 5	0.86	0.79	− 6	0.67	0.61	+ 1	0.65	0.63

LV left ventricle, EDV end-diastolic volume, ESV end-systolic volume, SV stroke volume, EF ejection fraction

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