Table 6 Comparison of the QCard-NM and QPS packages in RV segmentation
QCard-NM | QPS v2015.1 |
|---|---|
Spherical model | Ellipsoidal model |
The segmentation results are highly dependent on the RV model | The segmentation results are highly dependent on the RV count profiles |
Users can modify the model to avoid segmentation failure in the presence of extracardiac activity | Users can not interfere with the segmentation process |
Automatic segmentation may fail in case of RV dilation | Automatic segmentation may fail in case of intense extracardiac uptake near the RV |
Highly agreeable with the manually drawn physician’s contour | No data availability |
Statistically non-significant difference between repeated supine/prone scans in RV segmentation | Statistically significant difference between repeated supine/prone scans in RV segmentation |
Calculated RV cavity volume is highly correlated with actual phantom RV size | Calculated RV cavity volume is poorly correlated with actual phantom RV size |
Present the quantitative RV perfusion analysis | Present the gated RV functional parameters |