"1/15" I posted my method to investigate LV diastolic function and was questioned about two unusual aspects: 1) relaxation o LV was analyzed on a 2D PLAX view (how come?); 2) LA size was analyzed by eyeballing (eyeball ????????). Even though I explained in an extensive article. "2/15" I made this thread to be better understood. Some necessary tenets: normally, 70% of the total diastolic volume reaches LV by the initial 1/3 of diastole, during the rapid filling phase, and 30% by the remaining 2/3. This relation is inverted when relaxation is abnormal.