A.ST段水平或下斜型压低≥O.05mV
B.ST段水平或下斜型压低≥O.1mV
C.ST段水平或下斜型压低≥O.05mV,持续0.08s
D.ST段水平或下斜型压低≥O.1mV,持续0.08s
E.ST段水平或下斜型压低≥O.05mV,持续0.16s