LA functional morphometry
Using a bi-plane approach of apical 4 and 2 chamber views, the LA
endocardial surface was traced manually using a point and click approach
after which an endocardial tracking was automatically performed by the
VVI software (figure 1). The following parameters were determined to
assess phasic LA volumes and function
[14]: phasic LA maximal volume
(LAmax), phasic LA minimum volume (LAmin), LA total emptying volume
,Conduit volume, LA reservoir function, LA Passive ejection fraction
(PEF), and LA Active ejection fraction (AEF)