Wall motion score index calculator: WMSI
Explore the wall-motion score index tool and its segment-based teaching and source context.
Method
WMSI = Σ(segment scores) ÷ (number of segments scored)
Use the measurement units shown below. Some fields apply only to a selected method or condition; follow the interactive tool’s method choices. The interactive tool keeps missing measurements incomplete and provides its method-specific results and reference context.
Measurements and acquisition
1. Basal anterior
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
2. Basal anteroseptal
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
3. Basal inferoseptal
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
4. Basal inferior
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
5. Basal inferolateral
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
6. Basal anterolateral
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
7. Mid anterior
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
8. Mid anteroseptal
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
9. Mid inferoseptal
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
10. Mid inferior
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
11. Mid inferolateral
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
12. Mid anterolateral
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
13. Apical anterior
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
14. Apical septal
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
15. Apical inferior
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
16. Apical lateral
Enter the measured value in the displayed unit
- 1 · Normal
- 2 · Hypokinetic
- 3 · Akinetic
- 4 · Dyskinetic
- Not visualized
- Confirm the variable matches the selected formula.
- Use the unit displayed beside the field.
- Keep measurements from the same representative hemodynamic state.
Sources and method context
American Society of Echocardiography / EACVI · 2015 · Recommendations for Cardiac Chamber Quantification by Echocardiography in Adults · Regional LV function: JASE pp. 11–12, Figures 3–4. Stress acquisition, grading and reporting: ASE 2020 pp. 4–13.
- 16- and 17-segment roles · ASE/EACVI 2015 · pp. 11–12 · Figures 3–4
Use the 16-segment model for routine wall-motion assessment because apical-cap excursion and thickening are imperceptible; use the 17-segment model for perfusion and cross-modality display.
- Routine grading · ASE/EACVI 2015 · pp. 11–12; ASE 2020 · pp. 10–11
Routine chamber quantification scores normal/hyperkinetic 1, hypokinetic 2, akinetic 3 and dyskinetic 4. WMSI is the sum of scored segments divided by the number of segments scored.
Catalogue review status: Exact guideline locator mapped · clinical sign-off pending
These pages describe the educational tool. Interpret measurements with the complete clinical context and the method’s acquisition limitations.
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