Biventricular myocardial strain analysis in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) using cardiovascular magnetic resonance feature tracking

Table 1 Basic demographics, volumetric data and patient characteristics

	Healthy volunteers	ARVC	Borderline ARVC	pos. family history
n	10	20	30	22
Sex (m/w)	5/5	17/3	19/11	16/6
Age	24.3 ± 3.0	50.7 ± 16.9^*,#	41.4 ± 14.5^*,#	29.3 ± 11.7
Weight (kg)	66.4 ± 9.4	81.3 ± 17.3	80.7 ± 16.7	80.3 ± 15.7
Height (cm)	176.1 ± 9.1	178.4 ± 8.0	175.6 ± 8.5	179.3 ± 9.0
Body surface area (m ² )	1.81 ± 0.17	1.99 ± 0.22	1.96 ± 0.22	1.99 ± 0.22
RVEDVI (ml/m ² )	88.1 ± 12.8	124.4 ± 40.4^*,$,#	100.4 ± 31.9	93.2 ± 15.0
RVESVI (ml/m ² )	36.7 ± 6.4	78.0 ± 39.8^**,$,##	53.2 ± 25.0	45.7 ± 10.8
RVEF (%)	58.3 ± 4.8	40.4 ± 10.9^**,$$,##	49.2 ± 8.4^*	52.6 ± 6.9
LVEDVI (ml/m ² )	79.0 ± 8.2	84.3 ± 18.8	89.4 ± 20.6	88.7 ± 13.2
LVESVI (ml/m ² )	28.8 ± 4.5	33.5 ± 14.5	37.7 ± 13.3	35.4 ± 7.1
LVEF (%)	63.6 ± 4.2	60.7 ± 9.2	58.2 ± 7.1	61.3 ± 5.2
Task force score	0	5.5 ± 1.4	1.4 ± 0.8	1.5 ± 0.7
WMA (n)	10/0/0/0/0	7/0/1/4/8	23/0/0/4/3	20/0/0/0/2
RVEF > 45/45 > RVEF > 40/RVEF < 40	10/0/0	8/4/8	22/5/3	20/2/0

Abbreviations: RVEDVI Right Ventricular End-diastolic Volume Index, RVESVI Right Ventricular End-systolic Volume Index, RVEF Right Ventricular Ejection Fraction, LVEDVI Left Ventricular End-diastolic Volume Index, LVESVI Left Ventricular End-systolic Volume Index, LVEF Left Ventricular Ejection Fraction WMA Wall Motion Abnormalities.
WMA is graded in the following order: no WMA/Hypokinesia/Akinesia/Dyskinesia/ Aneurysm.
* significant difference compared to healthy volunteers.
$ significant difference compared to borderline ARVC patients.
# significant difference compared to subjects with positive family history for ARVC.
level of significance * p < 0.05; ** p < 0.01; $$ p < 0.01; ## p < 0.01.

ISSN: 1532-429X