Impact of a training program incorporating cardiac magnetic resonance imaging on the accuracy and reproducibility of two-dimensional echocardiographic measurements of left ventricular volumes and ejection fraction

Table 4 Change of statistical parameters before and after intervention

	Site A (n = 9)			Site B (n = 6)			Site C (n = 21)			Site D (n = 5)			Site E (n = 10)			All (n = 51)
	P1	P2	p	P1	P2	p	P1	P2	p	P1	P2	p	P1	P2	p	P1	P2	p
CV (%)
EDV	11.8	9.2	0.072	14.6	11.2	0.157	14.0	11.6	0.113	11.6	9.8	0.165	10.8	16.7	< 0.001	18.0	15.1	0.279
ESV	16.2	11.9	0.107	19.9	14.5	0.070	17.6	17.0	0.784	13.0	12.7	0.919	14.3	23.0	0.002	24.7	20.8	0.761
EF	11.0	10.9	0.957	13.9	14.9	0.786	9.9	15.5	0.005	9.4	9.3	0.987	8.7	14.6	0.008	13.1	15.3	0.022
CP
EDV	0.57	0.59	0.760	0.57	0.55	0.859	0.53	0.49	0.384	0.23	0.50	0.038	0.24	0.54	< 0.001	0.46	0.53	0.043
ESV	0.73	0.75	0.500	0.75	0.70	0.655	0.56	0.68	0.002	0.37	0.61	0.011	0.42	0.66	< 0.001	0.57	0.68	< 0.001
EF	0.78	0.83	0.211	0.65	0.76	0.151	0.39	0.74	< 0.001	0.36	0.71	0.010	0.54	0.78	< 0.001	0.52	0.76	< 0.001

P1 Protocol 1 (number of patients was 14), P2 Protocol 2 (number of patients was 14), EDV End-diastolic volume, ESV End-systolic volume, EF Ejection fraction, n, number of sonographers participating in both protocols

ISSN: 1476-7120