Compressed sensing real-time cine cardiovascular magnetic resonance: accurate assessment of left ventricular function in a single-breath-hold

Table 4 Intraobserver and interobserver variability of the CS cine CMR

	Difference (mean ± SD)	Variability [%] (mean ± SD)	R ²	Slope	p
Intraobserver
LVEDV (mL)	0.3 ± 11.6	1.0 ± 4.7	0.98	1.0	<0.0001
LVESV (mL)	0.4 ± 3.8	1.1 ± 7.0	0.99	0.99	<0.0001
LVSV (mL)	0.2 ± 11.1	1.6 ± 7.7	0.91	0.92	<0.0001
LV mass (g)	−5.4 ± 9.4	−4.8 ± 8.8	0.95	0.88	<0.0001
LVEF (%)	0.1 ± 2.9	0.7 ± 4.9	0.97	0.96	<0.0001
Interobserver
LVEDV (mL)	8.0 ± 5.8	6.4 ± 5.1	0.98	1.03	<0.0001
LVESV (mL)	1.7 ± 4.8	2.6 ± 9.8	0.99	1.03	<0.0001
LVSV (mL)	6.3 ± 6.0	9.3 ± 8.9	0.89	0.98	<0.0001
LV mass (g)	−6.3 ± 11.5	−7.3 ± 13.2	0.88	0.86	<0.0001
LVEF (%)	1.5 ± 3.4	2.9 ± 6.3	0.95	0.97	<0.0001

Bland–Altman plots highlight the mean difference and the standard deviation of the difference between the two measurements. Variability [%] is the absolute value of the difference between the two measurements divided by the mean of the two measurements
CS compressed sensing, LV left ventricular, LVEDV left ventricular end diastolic volume, LVEF left ventricular ejection fraction, LVESV left ventricular end systolic volume, LVSV left ventricular stroke volume, MR magnetic resonance, SD standard deviation

ISSN: 1532-429X