Comparative assessment of left atrial volume in healthy cats by two-dimensional and three-dimensional echocardiography

Table 2 Overview of P-Values for all left atrial (LA) measurement methods

Methods	LAMax	LAMin	EF	SV
R4 vs R4AL	< 0.0001	< 0.0001	0.5814	< 0.0001
R4 vs L2	0.6690	0.3364	0.5530	0.9399
R4 vs L4	0.0126	< 0.0001	< 0.0001	0.7380
R4 vs Biplane	0.7009	0.0045	0.0026	0.3092
R4 vs RTTPE	0.0042	0.0914	0.3076	0.0112
R4 vs 4DTomTec™	0.0001	0.2473	0.0315	< 0.0001
L2 vs L4	0.0021	< 0.0001	< 0.0001	0.3003
L2 vs Biplane	0.0883	< 0.0001	< 0.0001	0.0541
L2 vs RTTPE	< 0.0001	0.0006	0.5378	0.0005
L2 vs 4DTomTec™	< 0.0001	0.0869	0.1030	< 0.0001
L4 vs Biplane	< 0.0001	< 0.0001	< 0.0001	0.1972
L4 vs RTTPE	0.5752	< 0.0001	< 0.0001	0.0004
L4 vs 4DTomTec™	0.0185	0.0007	< 0.0001	< 0.0001
Biplane vs RTTPE	< 0.0001	0.3309	< 0.0001	< 0.0001
Biplane vs 4DTomTec™	< 0.0001	0.5469	< 0.0001	< 0.0001
RTTPE vs 4DTomTec™	0.0135	0.9260	0.1949	0.0044

Comparison of left atrial maximum and minimum volumes (LAMax/LAMin), ejection fraction (EF) and stroke volume (SV) in 50 healthy cats measured with 7 echocardiographic methods: right parasternal 4 chamber view measured with 2D Area/Length method (R4AL) and 2D monoplane Simpson method of discs (R4), left apical two chamber view (L2) and four chamber view (L4) measured with 2D monoplane Simpson method of discs, L2 and L4 combined to biplane volumetry (Biplane), Real Time Triplane Echocardiography (RTTPE), 4D-TomTec™ analysing software. Mean differences between the measurement-techniques were evaluated with a t-Test. P > 0.05 was evaluated as significant similarity and marked as bold letters

ISSN: 1746-6148