Table 1.
System performance by concept
| Mapping | TIU | Echo | Radiology | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mentions | Precision | Recall | Mentions | Precision | Recall | Mentions | Precision | Recall | |
| Aortic valve max pressure gradient* | 11 | 1.000 | 0.611 | 2 | 1.000 | 1.000 | 0 | . | . |
| Aortic valve mean pressure gradient* | 8 | 1.000 | 0.471 | 0 | . | . | 0 | . | . |
| Aortic valve orifice area | 18 | 0.722 | 0.867 | 2 | 0.500 | 0.500 | 2 | 0.000 | 0.000 |
| Aortic valve regurgitation | 62 | 0.984 | 0.859 | 24 | 1.000 | 0.750 | 4 | 0.750 | 0.500 |
| Aortic valve stenosis | 24 | 1.000 | 0.558 | 8 | 1.000 | 0.364 | 2 | 1.000 | 0.667 |
| E/e prime ratio* | 7 | 0.571 | 1.000 | 0 | . | . | 1 | 1.000 | 1.000 |
| Interventricular septum dimension at end diastole | 75 | 0.853 | 1.000 | 27 | 0.926 | 1.000 | 10 | 0.900 | 1.000 |
| Left atrium size at end systole | 142 | 0.923 | 0.929 | 63 | 1.000 | 0.875 | 6 | 1.000 | 1.000 |
| Left ventricular contractility* | 4 | 0.250 | 0.063 | 0 | . | . | 5 | 1.000 | 1.000 |
| Left ventricular dimension at end diastole | 59 | 0.949 | 0.862 | 12 | 1.000 | 0.706 | 7 | 0.857 | 0.857 |
| Left ventricular dimension at end systole | 43 | 0.977 | 0.894 | 11 | 1.000 | 1.000 | 0 | . | . |
| Left ventricular ejection fraction | 377 | 0.968 | 0.899 | 137 | 1.000 | 0.801 | 176 | 0.989 | 0.883 |
| Left ventricular hypertrophy | 65 | 0.908 | 1.000 | 23 | 0.913 | 1.000 | 2 | 1.000 | 0.500 |
| Left ventricular posterior wall thickness at end diastole | 78 | 0.974 | 0.844 | 33 | 0.970 | 0.842 | 7 | 0.857 | 0.750 |
| Left ventricular size | 67 | 0.985 | 0.629 | 27 | 1.000 | 0.443 | 27 | 1.000 | 0.563 |
| Mitral valve mean pressure gradient* | 9 | 1.000 | 0.750 | 0 | . | . | 0 | . | . |
| Mitral valve orifice area* | 9 | 1.000 | 1.000 | 0 | . | . | 0 | . | . |
| Mitral valve regurgitation peak velocity* | 2 | 1.000 | 0.667 | 0 | . | . | 0 | . | . |
| Mitral valve regurgitation | 118 | 0.822 | 0.764 | 47 | 0.979 | 0.754 | 5 | 1.000 | 0.500 |
| Mitral valve stenosis* | 6 | 1.000 | 0.500 | 2 | 1.000 | 0.667 | 0 | . | . |
| Pulmonary artery pressure | 42 | 0.952 | 0.588 | 15 | 1.000 | 0.517 | 0 | . | . |
| Right atrial pressure | 33 | 0.939 | 0.689 | 7 | 1.000 | 0.389 | 0 | . | . |
| Tricuspid valve mean pressure gradient* | 4 | 1.000 | 1.000 | 1 | 1.000 | 1.000 | 0 | . | . |
| Tricuspid valve regurgitation peak velocity | 18 | 0.889 | 0.696 | 5 | 0.600 | 0.500 | 0 | . | . |
| Tricuspid valve regurgitation | 85 | 0.976 | 0.830 | 54 | 1.000 | 0.857 | 1 | 1.000 | 0.333 |
| Total | 1,366 | 0.936 | 0.817 | 500 | 0.982 | 0.741 | 255 | 0.969 | 0.802 |
Concepts with total counts below 20 mentions are marked with asterisk (*). Number of mentions detected by the system are listed in “Mentions” column. TIU refers to the narrative text records in the VistA Text Integration Utilities file. Echo refers to the narrative portion of the structured record in the VistA Echocardiogram file. Radiology refers to the narrative text content in the VistA Radiology/Nuclear Medicine file