Table 5.
Results for Mean Error and RMS Error in LVV and EF Over the Physiologic Volume Range Using Bloomgarden's Method25 (Eqn. (10)) That has Been Modified to Account for Central Axis Misalignment
| Modified Bloomgarden's Method | 12 Slices | 6 Slices Var. 1 | 6 Slices Var. 2 | 6 Slices Mean | 4 Slices Var. 1 | 4 Slices Var. 2 | 4 Slices Var. 3 | 4 Slices Mean |
|---|---|---|---|---|---|---|---|---|
| Mean LVV error, mL | −1.9 | −1.9 | −1.9 | −1.9 | −0.7 | −2.5 | −2.6 | −1.9 |
| Mean error, % | −3.7 | −3.6 | −3.7 | −3.7 | −1.2 | −4.7 | −5.0 | −3.7 |
| RMS error, % | 3.9 | 4.0 | 3.9 | 3.96 | 2.4 | 4.8 | 5.3 | 4.15 |
| EF | 0.387 | 0.380 | 0.395 | 0.387 | 0.370 | 0.396 | 0.397 | 0.387 |
| EF error, % | 3.9 | 5.7 | 2.1 | 3.9 | 8.3 | 1.7 | 1.5 | 3.9 |
LVV estimates are based on variants of 12, 6, and 4 long‐axis slices. EF indicates ejection fraction; LVV, left ventricular cavity volume; RMS, root mean square.