Table 8.
Overview of Bland-Altman analysis results
| Methods compared | Bias | upper LOA | lower LOA |
|---|---|---|---|
| R4 vs L2 | 0.0320 | 1.063 | −0.9989 |
| R4 vs L4 | −0.1816 | 0.7899 | −1.153 |
| R4 vs Biplane | −0.025 | 0.8717 | −0.9217 |
| R4 vs RTTPE | −0.025 | 0.8717 | − 0.9217 |
| R4 vs 4DTomTec™ | −0.3388 | 0.7891 | −1.467 |
| L2 vs L4 | −0.2136 | 0.6981 | −1.125 |
| L2 vs Biplane | −0.057 | 0.3977 | −0.5117 |
| L2 vs RTTPE | −0.2442 | 0.4469 | −0.9353 |
| L2 vs 4DTomTec™ | −0.3708 | 0.551 | −1.293 |
| L4 vs Biplane | 0.1566 | 0.6319 | −0.3187 |
| L4 vs RTTPE | −0.0306 | 0.7212 | −0.7824 |
| L4 vs 4DTomTec™ | −0.1572 | 0.7369 | −1.051 |
| Biplane vs RTTPE | −0.1872 | 0.3797 | −0.7541 |
| Biplane vs 4DTomTec™ | −0.3138 | 0.4862 | −1.114 |
| RTTPE vs 4DTomTec™ | −0.1266 | 0.5576 | −0.8108 |
Results of Bland-Altman comparison between LAMax results of 50 healthy cats measured with 6 echocardiographic methods: right parasternal 4 chamber view measured with 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) and 4D-TomTec™ analysing software. (LOA = limit of agreement)