Measurement of stroke volume with echocardiography compared to gold standard cardiac magnetic resonance imaging An observational study

The assessment of Doppler-derived left ventricular outflow tract (LVOT) stroke volume (SV) is fundamental in outpatient, perioperative and critical care echocardiography.1 Calculation of SV allows assessment of the severity of aortic stenosis (AS) and evaluation of the haemodynamic state during undifferentiated hypotension.2 The use of focused transthoracic echocardiography (TTE) has appeal in a critical care environment, where after a single measurement of the LVOT area, pulsed wave Doppler velocity time integral (VTI) in the LVOT is used to calculate LVOT SV.
Source: Journal of Cardiothoracic and Vascular Anesthesia - Category: Anesthesiology Authors: Tags: Original Article Source Type: research