[Glossary] M mode measurement

Ventricle Measure

• LVIDd : Left ventricular internal diameter end diastole
• LVIDs: Left ventricular internal diameter end systole
• EDV: End diastolic volume, amount of blood in the ventricle during diastole
• ESV: End systolic volume, amount of blood in ventricle after systole
• EDV Index: End-diastolic volume index, referred to as EDV corrected for BSA
  • = EDV / BSA
• ESV Index: End- systolic volume index
  • = ESV / BSA
• SV: Stroke volume, volume of blood pumped from the heart in one cycle of diastole and systole, is affected by Preload, contractility and Afterload
  • = EDV – ESV
• CO: Cardiac output, quantity of blood pumped per minute through the aorta and into the peripheral circulation, is proportional to (Arterial pressure / Total peripheral resistance)
  • = SV * HR
• EF: Ejection fraction, reflects the percentage of blood ejected from the ventricle
  • = SV / EDV * 100%
• FS: Fractional shortening
  • = (LVIDd – LVIDs) / LVIDd * 100%