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LV Diastolic Stress Test Index Calculator

LV Diastolic Stress Test Index: Explanation and Clinical Context The Left Ventricular (LV) Diastolic Stress Test Index, primarily expressed as the ratio of early mitral inflow velocity (E) to early diastolic annular velocity (e′) during peak exercise, is a validated echocardiographic parameter to assess left ventricular filling pressures under stress conditions. A normal response (E/e′ < 10) suggests adequate relaxat

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LV Sphericity Index (MRI-Derived) Calculator

Left Ventricular Sphericity Index (LVSI): Explanation and Clinical Context The Left Ventricular Sphericity Index (LVSI) is a ratio of the left ventricular short-axis diameter to the long-axis length measured at end-diastole. It quantifies the geometric remodeling of the left ventricle from a normal ellipsoid shape toward a more spherical form. A higher LVSI indicates a more spherical ventricle, which is often associa