the best equation was : gradient = -15.0 + ( 3.845 x mct 4 ) + ( 0.474 x cd x lss 3 ) + ( 0.138 x cd x mcs 3 ) where mct 4 = t wave amplitude in the lead in the fourth interspace in the midclavicular line cd = ap chest diameter in cm lss 3 = s wave amplitude in the lead in the third interspace at the left sternal border mcs 3 = s wave amplitude in the lead in the third interspace in the midclavicular line ( r = 0.84 , see = 24.3 ) there are areas on the chest surface that are unexplored by standard electrocardiography .
C0817096
chest
C0038293
sternal