Cardiothoracic & vascular anesthesia
A Comparison of 2- and 3-Dimensional Echocardiographic Measurement of the Mitral Valve Leaflet Lengths
Authors' conclusion
There were significant differences between 2D and 3D measurements of diastolic mitral leaflet lengths.
Study context
- Population
- Adults scheduled for elective cardiac surgery with adequate TEE 2D mid-esophageal views and full-volume 3D datasetsinterobserver subset 15
- Participants
- 75 adults
- Exposure
- 2D vs 3D TEE measurement of diastolic mitral valve (MV) leaflet lengths
- Outcome
- Agreement between 2D and 3D leaflet lengths
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
- Correlation between 2D and 3D, r (moderate; p < 0.0001 for all)
- 0.41-0.74
- Mean bias 2D vs 3D, A2 (cm)
- 0.03
- Mean bias 2D vs 3D, P2 (cm)
- −0.07
- CoV, A2
- 19.4% to 23.7%
- CoV, P2
- 41.4% to 44.3%
- Mean bias 2D vs 3D, P1 (cm)
- 0.05
- Mean bias 2D vs 3D, P3 (cm)
- 0.04
- CoV, P1
- 59.9%
- CoV, P3
- 49.6%
Observational data: associations, not effects.
Further findings
| Outcome | 2D | 3D MPRCoV | P value |
|---|---|---|---|
| Interobserver variability (CoV), A2Significantly lower with 3D MPR | 7.3% | P = 0.004 | |
| Mid-esophageal 4-/5-chamber | 20.4% | — not stated in the abstract | |
| Mid-esophageal long-axis | 38.2% | — not stated in the abstract | |
| Interobserver variability (CoV), P2Significantly lower with 3D MPR | 17.3% | P = 0.02 | |
| Mid-esophageal 4-/5-chamber | 43.6% | — not stated in the abstract | |
| Mid-esophageal long-axis | 53.6% | — not stated in the abstract |
— not stated in the abstract
- Interobserver variability (CoV), A2: subset of 15 patients
- Interobserver variability (CoV), P2: subset of 15 patients
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
A Comparison of 2- and 3-Dimensional Echocardiographic Measurement of the Mitral Valve Leaflet Lengths. J Cardiothorac Vasc Anesth. Published 16 June 2026. doi:10.
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