Hemodynamic change in patients with hypertrophic obstructive cardiomyopathy before and after alcohol septal ablation using 4D flow magnetic resonance imaging: a retrospective observational study

Table 3 Cine and LGE MRI and MRA before and 1 week after the ASA

Cine MRI	Before ASA	After ASA	p
Max-IVSTd, mm	19.3 ± 4.3	18.3 ± 4.6	0.001
Max-IVSTs, mm	22.0 ± 4.7	20.9 ± 4.5	0.003
LVEDVI, mL/m²	76.3 ± 9.3	82.3 ± 25.1	0.337
LVESVI, mL/m²	21.0 ± 6.9	29.3 ± 15.8	0.083
LVEF, %	72.5 ± 9.4	65.2 ± 10.7	0.033
LVMI, g/m²	95.3 ± 27.6	97.5 ± 30.2	0.65
RVEDVI, mL/m²	48.1 ± 8.2	53.3 ± 12.1	0.26
RVESVI, mL/m²	15.7 ± 8.0	18.0 ± 6.3	0.34
RVEF, %	68.1 ± 12.4	65.9 ± 11.1	0.55
LGE MRI
LGE mass, g	17.4 ± 17.7	38.3 ± 26.7	0.001
%LGE, %	10.3 ± 6.0	22.6 ± 8.4	< 0.001
3D MRA
AAO-D, mm	36.9 ± 7.5	36.6 ± 7.3	0.22
AAO-DI, mm/m²	23.9 ± 6.0	23.9 ± 5.9	0.82

Data are expressed as mean ± standard deviation
%LGE, a fraction of late gadolinium enhancement to left ventricle mass; AAO-D, ascending aortic-diameter; AAO-DI, ascending aortic-diameter index; ASA, alcohol septal ablation; LGE, late gadolinium enhancement; LVEDVI, left ventricular end-diastolic volume index; LVEF, left ventricular ejection fraction; LVESVI, left ventricular end-systolic volume index; LVMI, left ventricular mass index; Max-IVSTd, maximum interventricular septal thickness in diastole; Max-IVSTs, maximum interventricular septal thickness in systole; MRI, magnetic resonance imaging; MRA, magnetic resonance angiography, RVEDVI, right ventricular end-diastolic volume index; RVEF, right ventricular ejection fraction; RVESVI, right ventricular end-systolic volume index

ISSN: 1471-2261