Cardiothoracic & vascular anesthesia
Right ventricular ejection fraction derived from intraoperative three-dimensional transesophageal echocardiography versus cardiac magnetic resonance imaging
Authors' conclusion
Intraoperative TEE RV, EDV, and ESV are underestimated relative to cMRI because of analysis, anesthetic, and ventilation factors. The EF showed a low mean difference, and all values showed strong correlation with MRI.
Study context
- Population
- Cardiac surgery patients with cardiac magnetic resonance imaging (cMRI) within the preceding 12 preoperative months
- Participants
- 25 patients
- Comparison
- Intraoperative 3D transesophageal echocardiography (TEE) vs cardiac MRI for right ventricle (RV) volumes and ejection fraction (EF)
- Outcome
- Agreement of RV EDV, ESV and EF between intraoperative 3D TEE and cMRI
Main finding
As reported in the abstract
RV EDV, ESV, EF: TEE vs MRI
Mean bias (end-diastolic volume (EDV))
−53 mL
95% CI −80 to 26
RV EDV, end-systolic volume (ESV), EF: TEE vs MRI
Mean bias (ESV)
−21 mL
95% CI −34 to −9
RV EDV, ESV, EF: TEE vs MRI
Mean bias (EF)
−4 %
95% CI −8 to 1
did not differ significantly
- Correlation coefficient r, EDV
- 0.85
- Correlation coefficient r, ESV
- 0.91
- Correlation coefficient r, EF
- 0.80
- Interclass correlation coefficient, EDV
- 0.86
- Interclass correlation coefficient, ESV
- 0.89
- Interclass correlation coefficient, EF
- 0.96
Further findings
Sensitivity analysis excluding MRIs older than 180 days
- Results unchanged
Original publication
Right ventricular ejection fraction derived from intraoperative three-dimensional transesophageal echocardiography versus cardiac magnetic resonance imaging. Can J Anaesth. Published 26 September 2023. doi:10.
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