There are multiple definitions:

1. left ventricular electromechanical systole time(English)

   • interval from Q wave to peak of decline of LV pressure
   • LVP, ECG
   • Electrophysiology, Cardiology

2. left ventricular end-systolic wall thickness(English)

   • HAPH, MRI, LV, LVEDT, RVEDT, RVEST
   • Cardiology, Medical imaging
   • https://doi.org…9/ham.2009.0001