Left ventricular systolic function 02

Left ventricular systolic function / 2

Left ventricular walls and mass index

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Left ventricular short axis fractional shortening
FFS= [(end-diastolic - end-systolic) / end-diastolic] x 100 (%)

1 2 3 4 5

Left ventricular wall thickening
PWT= [(end-systolic - end-diastolic) / end-diastolic] x 100 (%)

M-Mode examination of the left ventricle

Normal values
Left panel: normal LV
Right panel: dilated LV with reduced systolic function. Fractional shortening is 21 %. Note hypokinesis of the interventricular septum.

Note increased mitral E-septum separation on the right, as compared to the normal LV.

IVS: interventricular septum
LV: left ventricular cavity
Phono: phonocardiographic tracing
PLW: postero-lateral wall
RV: right ventricular cavity

Measurement units: cm
Normal values:
PWT= 43 - 61 %
IVS= 34 - 50 %

Measurement of end-diastolic (red arrows synchronous with Q wave of ECG) and end-systolic (at maximum systolic wall thickness) left ventricular wall thickness.

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