What is a normal left ventricular mass?
Normal values of LV mass indexed to body surface area were found to be 70 ± 9 g/m(2) in men and 61 ± 8 g/m(2) in women. Significant age and gender dependence, but no racial dependence, was observed for LV mass index. Conclusions: Three-dimensional echocardiography is an accurate method for measuring LV mass.
How is left ventricular mass measured?
Left ventricular mass is generally calculated as the difference between the epicardium delimited volume and the left ventricular chamber volume multiplied by an estimate of myocardial density.
Why measure left ventricular volume and mass?
Left ventricular (LV) volumes, ejection fraction (EF) and mass are important prognostic factors in patients with cardiac diseases and are therefore frequently requested for serial testing.
What is a normal LVM?
BSA-indexed 97.5th percentile cut-off values: LVM = 80 and 65 gr/m(2), left ventricular volume = 97 and 83 mL/m(2), right ventricular volume = 120 and 102 mL/m(2), left atrial volume = 60 and 57 mL/m(2), and right atrial volume = 85 and 73 mL/m(2) for men and women, respectively.
What is normal LV size?
42 to 59 mm
These criteria classify the LV size as normal (men: 42 to 59 mm; women: 39 to 53 mm), mildly dilated (men: 60 to 63 mm; women: 54 to 57 mm), moderately dilated (men: 64 to 68 mm; women: 58 to 61 mm), or severely dilated (men: ≥69 mm; women: ≥62 mm).
What is ventricular mass index?
Left ventricular mass index (LVMI) is a parameter used in echocardiography and cardiac MRI. LVMI is calculated using the following equations: LVMI = LVM (left ventricular mass)/body surface area.
What is LV mass in Echo?
Left ventricular mass and left ventricular mass indexed to body surface area estimated by LV cavity dimension and wall thickness at end-diastole. Relative wall thickness (RWT) allows further classification of LV mass increase as either concentric hypertrophy (RWT >0.42) or eccentric hypertrophy (RWT ≤0.42).
What is LV mass 2D?
The formula used for measurement of M-mode echo-derived LV mass was LV mass = 0.8 (ASE-cube LV mass) + 0.6 gm. For 2D echo-derived LV mass, the ASE-recommended area length and truncated ellipsoid methods in systole and diastole were used, with and without incorporating the papillary muscles into the myocardial shell.
What is a normal LV systolic volume?
The right ventricular end-systolic volume (RVESV) normally ranges between 50 and 100 mL.
What is LV volume?
While the right ventricle also has an end-diastolic volume, it’s the value for the left ventricle, and how it relates to stroke volume, that serves as an important measurement for how well the heart is working. The heart is made up of four chambers.
What is left ventricular mass?
Left ventricular mass index (LVMI) is a parameter used in echocardiography and cardiac MRI. LVMI is calculated using the following equations: LVMI = LVM (left ventricular mass)/body surface area. left ventricular mass = 0.8{1.04[([LVEDD + IVSd +PWd]3 – LVEDD3)]} + 0.6.