Direct measurement of atrioventricular valve regurgitant jets using 4D flow cardiovascular magnetic resonance is accurate and reliable for children with congenital heart disease: a retrospective cohort study

Table 2 Comparison of the RF as measured by each method

	Median (IQR)	Mild (0–30%)	Moderate (31–39%)	Moderate - Severe (40–49%)	Severe (>49 %)
VOL	21.4% (7.5–42.3%)	22^a	3	7	7
AIM_stat	19.2% (5.8–30.0%)	27^a	2	4	5
AIM_track	16.4% (4.5–27.4%)	27^a	3	3	4
JET	22.1% (9.9–37.6%)	27	9	3	5

^a5 subjects by VOL, 6 by AIM_stat, and 7 by AIM_track had negative regurgitant fractions and were not included in this table. VOL Volumetry method, AIM_stat Annular inflow method by static plane, AIM_track Annular inflow method by valve-tracking plane, JET Direct measurement of the atrioventricular regurgitant jet

ISSN: 1532-429X