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Results of the external validation. ( A–C ) Agreement between the invasively measured pressure curves (i.e. ground truth) and those predicted by the three investigated methods using the invasively derived peak systolic pressure as input. ( D–F ) Agreement between the invasively measured pressure curves (i.e. ground truth) and those predicted by the three investigated methods using the non-invasively derived peak systolic pressure (i.e. the peak RV pressure estimated from the Doppler <t>echocardiography–derived</t> peak velocity of the tricuspid regurgitation jet) as input. The thick red line indicates the mean difference. LV, left ventricular; PVC, pulmonary valve closure; PVO, pulmonary valve opening; RV, right ventricular; TVC, tricuspid valve closure; TVO, tricuspid valve opening.
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A three-dimensional dynamic heart within one cardiac cycle. We show some snapshots of a reconstructed three-dimensional dynamic heart within one cardiac cycle using CardiacField, compared with that acquired by the three-dimensional echocardiography probe. The electrocardiogram is used to indicate the phases within one cardiac cycle.

Journal: European Heart Journal. Digital Health

Article Title: CardiacField: computational echocardiography for automated heart function estimation using two-dimensional echocardiography probes

doi: 10.1093/ehjdh/ztae072

Figure Lengend Snippet: A three-dimensional dynamic heart within one cardiac cycle. We show some snapshots of a reconstructed three-dimensional dynamic heart within one cardiac cycle using CardiacField, compared with that acquired by the three-dimensional echocardiography probe. The electrocardiogram is used to indicate the phases within one cardiac cycle.

Article Snippet: Similarly, RV volumes and EFs were assessed using RV-focused 3D echocardiography (4D RV-Function, TomTec Imaging).

Techniques:

Results of the external validation. ( A–C ) Agreement between the invasively measured pressure curves (i.e. ground truth) and those predicted by the three investigated methods using the invasively derived peak systolic pressure as input. ( D–F ) Agreement between the invasively measured pressure curves (i.e. ground truth) and those predicted by the three investigated methods using the non-invasively derived peak systolic pressure (i.e. the peak RV pressure estimated from the Doppler echocardiography–derived peak velocity of the tricuspid regurgitation jet) as input. The thick red line indicates the mean difference. LV, left ventricular; PVC, pulmonary valve closure; PVO, pulmonary valve opening; RV, right ventricular; TVC, tricuspid valve closure; TVO, tricuspid valve opening.

Journal: European Heart Journal. Imaging Methods and Practice

Article Title: Artificial intelligence-enabled reconstruction of the right ventricular pressure curve using the peak pressure value: a proof-of-concept study

doi: 10.1093/ehjimp/qyae099

Figure Lengend Snippet: Results of the external validation. ( A–C ) Agreement between the invasively measured pressure curves (i.e. ground truth) and those predicted by the three investigated methods using the invasively derived peak systolic pressure as input. ( D–F ) Agreement between the invasively measured pressure curves (i.e. ground truth) and those predicted by the three investigated methods using the non-invasively derived peak systolic pressure (i.e. the peak RV pressure estimated from the Doppler echocardiography–derived peak velocity of the tricuspid regurgitation jet) as input. The thick red line indicates the mean difference. LV, left ventricular; PVC, pulmonary valve closure; PVO, pulmonary valve opening; RV, right ventricular; TVC, tricuspid valve closure; TVO, tricuspid valve opening.

Article Snippet: Comprehensive 2D and 3D transoesophageal echocardiography was performed during the operation to quantify RV volumes and RVEF (EPIQ CVx system, X8-2t transducer, Philips Healthcare, Best, The Netherlands; and 4D RV-Function 2, TomTec, Unterschleissheim, Germany).

Techniques: Biomarker Discovery, Derivative Assay