Fig 1.
Feature-tracking using different software solutions.
On the left, endo- and epicardially tracked borders of the left ventricle in a 4 chamber view (CV) at the end-diastole (ED) and end-systole (ES) are shown in a healthy volunteer using the different commercially available software solutions (upper row: CVI, middle row: Medis, bottom row: TomTec). On the right, the corresponding global longitudinal strain (GLS) curves are displayed.
Table 1.
Patients demographics and characteristics.
Table 2.
Intra- and inter-observer reproducibility using CVI prior to and after training.
Table 3.
Intra- and inter-observer reproducibility using Medis prior to and after training.
Table 4.
Intra- and inter-observer reproducibility using TomTec prior to and after training.
Fig 2.
Intra-observer reproducibility.
The graph shows interclass correlation coefficients (ICC) and coefficients of variation (CoV) for intra-observer reproducibility prior to and after training. LV/RV: left/right ventricle, GLS: global longitudinal strain, GCS: global circumferential strain, GRS: global radial strain.
Fig 3.
Inter-observer reproducibility.
The graph shows interclass correlation coefficients (ICC) and coefficients of variation (CoV) for inter-observer reproducibility prior to and after training. LV/RV: left/right ventricle, GLS: global longitudinal strain, GCS: global circumferential strain, GRS: global radial strain.
Fig 4.
The graph shows interclass correlation coefficients (ICC) and coefficients of variation (CoV) for inter-vendor agreement prior to and after training as well as the agreement of a trained investigator (control) as a reference. LV/RV: left/right ventricle, GLS: global longitudinal strain, GCS: global circumferential strain, GRS: global radial strain.