Velocity-Time Integral of Aortic Regurgitation: Echocardiographic Marker Study

62 patient records from a 2016 study assess the Velocity-Time Integral (VTI) as a marker for aortic regurgitation severity. The data includes patient demographics, echocardiographic measurements like left ventricular dimensions and ejection fraction, and statistical associations. This research dataset was published in Arquivos Brasileiros de Cardiologia in 2020.

Use Cases

• Predict aortic regurgitation severity based on Velocity-Time Integral (VTI) measurements.
• Analyze correlations between left ventricular dimensions (LVEDD, LVEDV) and regurgitation severity.
• Build regression models to understand the relationship between echocardiographic markers and clinical outcomes.
• Validate the VTI marker against established measures like effective regurgitant orifice and regurgitant volume.

Strengths

• Dataset includes 62 patient records with detailed echocardiographic measurements.
• Statistical analysis shows VTI is a marker of severity independent of left ventricular diameter, volume, and ejection fraction.
• Specific numerical results are provided, such as VTI values of 2.2±0.5 m for moderate AR and 1.9±0.5 m for severe AR.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect temporal bias inherent to a single-center study from January to October 2016.

Provenance

Source

José Abellán-Huerta, via paperswithcode.

Collection Method

Patients with moderate or severe native aortic regurgitation underwent complete echocardiograms with AR VTI measurement.

Time Range

Data collected from January to October 2016.