Table 1.

Left ventricular ejection and filling parameters derived from volume-time curves obtained using the automated machine learning (ML) algorithm, and by using conventional CMR analysis in 21 study subjects (volumes are expressed in units of ml; fractions are in percent), as well as inter-technique agreement assessed by linear regression and Bland-Altman analysis (bias and limits of agreement (LOA) are expressed in percent of the corresponding measured value).

		Manual	ML	r	Bias ± LOA (%)
Ejection indices	End-systolic volume	76 ± 27	77 ± 30	0.93	2 ± 29
	Stroke volume	100 ± 32	93 ± 29	0.85	−7 ± 35
	Ejection fraction	57 ± 9	55 ± 8	0.70	−4 ± 25
	Volume (50% ejection time)	118 ± 39	118 ± 43	0.96	0 ± 20
Filling indices	End-diastolic volume	176 ± 52	170 ± 53	0.97	−3 ± 14
	Filling duration (%RR)	63 ± 6	62 ± 7	0.64	−1 ± 19
	Volume (25% filling time)	102 ± 41	98 ± 41	0.95	−5 ± 26
	Volume (50% filling time)	137 ± 51	132 ± 41	0.99	−4 ± 12
	Volume (75% filling time)	151 ± 50	145 ± 49	0.98	−4 ± 15
	Volume at diastasis	144 ± 52	140 ± 51	0.98	−3 ± 14
	Rapid filling volume	68 ± 34	63 ± 27	0.88	−9 ± 51
	Rapid filling fraction	0.67 ± 0.17	0.66 ± 0.15	0.88	−1 ± 24
	Atrial filling volume	31 ± 16	30 ± 15	0.86	−3 ± 53
	Atrial filling fraction	0.33 ± 0.17	0.34 ± 0.15	0.88	1 ± 48