Math in the Echo Lab

Abstract

Several calculations are utilized in echocardiography to help assess hemodynamic status. Many of these calculations can be carried out at various locations in the heart such that different volumes and pressures can be estimated. In order to understand the clinical significance of the obtained parameters, all available information needs to be taken into consideration. Understanding possible shortcomings of the techniques, impact of technical limitations, and the effects of various cardiovascular pathologies on these parameters is paramount for proper interpretation of the obtained data. The basic parameters and principles that are utilized when assessing hemodynamics by echocardiography include: volume calculations, resistance calculation, Continuity principle, PISA method, and volumetric calculations.