Pulmonary blood volume measured by cardiovascular magnetic resonance: influence of pulmonary transit time methods and left atrial volume

Table 6 Interobserver intraclass correlation

		ICC single measure	Single measure 95% CI	ICC average measure	Average measure 95% CI
PBV	PBT(FPP)	0.88	0.80–0.92	0.93	0.89–0.96
	Peak-peak(FPP)	0.92	0.87–0.95	0.96	0.93–0.98
	CoG(FPP)	0.97	0.94–0.98	0.98	0.97–0.99
PBV–LAV_mean	PBT(FPP)	0.84	0.74–0.91	0.91	0.85–0.95
	Peak-peak(FPP)	0.89	0.82–0.94	0.94	0.90–0.97
	CoG(FPP)	0.95	0.92–0.97	0.98	0.96–0.99

Intraclass correlation (ICC) of pulmonary blood volume (PBV) for intraobserver analysis
FPP first pass perfusion; PTB(FPP) pulmonary transit time, pulmonary transit beats; peak-peak(FPP) pulmonary transit time, peak to peak; CoG(FPP) pulmonary transit time, center of gravity; LAV_mean mean left atrial volume, CI confidence interval
p-values for all correlations were < 0.001

ISSN: 1532-429X