Manual correction of semi-automatic three-dimensional echocardiography is needed for right ventricular assessment in adults; validation with cardiac magnetic resonance

Table 2 Results of mean values and biases of 3DE and CMR analyses of the right ventricular volumes and function.

		CMR	Manually corrected 3DE analysis			Uncorrected semi-automatic 3DE
	3DE image quality	Mean ± SD	Mean ± SD	Bias		Mean ± SD	Bias
EDV	2+3+4	148 ± 38 mL	127 ± 41 mL^†	-22 ± 27 mL	-15 ± 18%	117 ± 38 mL† ‡	-32 ± 26 mL‡	-21 ± 17%
	3+4	141 ± 37 mL	124 ± 36 mL†	-18 ± 24 mL	-11 ± 17%	113 ± 35 mL† ‡	-28 ± 25 mL‡	-19 ± 18%
ESV	2+3+4	71 ± 27 mL	64 ± 28 mL†	-7 ± 16 mL	-10 ± 21%	64 ± 24 mL†	-8 ± 17 mL	-10 ± 23%
	3+4	68 ± 28 mL	61 ± 24 mL†	-7 ± 12 mL	-9 ± 18%	63 ± 25 mL	-5 ± 14 mL	-6 ± 22%
SV	2+3+4	74 ± 20 mL	63 ± 20 mL†	-12 ± 18 mL	-15 ± 26%	55 ± 19 mL† ‡	-21 ± 15 mL‡	-28 ± 18%
	3+4	71 ± 20 mL	63 ± 17 mL†	-9 ± 17 mL	-9 ± 26%	50 ± 30 mL† ‡	-21 ± 13 mL‡	-27 ± 15%
EF	2+3+4	53 ± 9%	51 ± 9%	- 2 ± 8%	-3 ± 16%	46 ± 9%† ‡	-6 ± 9%‡	-11 ± 18%
	3+4	52 ± 8%	52 ± 8%	-1 ± 7%	-2 ± 14%	45 ± 8%† ‡	-7 ± 7%‡	-12 ± 14%

Results of mean values and biases of cardiac magnet resonance imaging (CMR), manually corrected semi-automatic and uncorrected semi-automatic three-dimensional echocardiography (3DE) analysis. Means expressed with ± standard deviation (SD). 3DE image quality: 2 means fairly visualized, 3 good and 4 excellent visualized. n = 53 for 2+3+4 and n = 27 for 3+4.
†: compared to CMR, p ≤ 0.001; ‡: compared to corrected 3DE, p ≤ 0.001; No significant differences in means and biases between image quality more than 2 compared to less than 3.

ISSN: 1476-7120