So right! This is our failing for not making the case for contemporary markers of disease as entry criteria ( why are we even talking about different bands of EF in 2020 - we can’t measure it to less than 10% in any case!) https://twitter.com/dr_benoy_n_shah/status/1305802670318456832

And for the vendor dependent enthusiasts - 2D / M-mode/ MRI / SPeCT / contrast / 3D. But we still trot out the EF.

For the “ as good as MAPSE” enthusiasts - true of course - but imaging is mostly about communication - GLS cuts it in the MDT

But even without RCT - where it really helps is. my patient with a a normal LV has symptoms of heart failure ( 10 times a day discussion) (EF 55% GLS -12 )