|“Classic” criteria||Q-wave with a duration ≥40 ms and/or a depth ≥25% of the R-wave in the same lead or the presence of a Q-wave equivalent|
|TIMI criteria||Q-wave ≥30 ms in 2 contiguous leads, any Q- or R-wave ≤10 ms and ≤0.1 mV in lead V2, and R-wave ≥40 ms in V1|
|Consensus 2000||Any Q-wave in leads V1 through V3, Q-wave ≥30 ms in leads I, II aVL, aVF, V4, V5, V6|
|The Q-wave changes must be present in any 2 contiguous leads, and be ≥1 mm in depth|
|Consensus 2007||Any Q-wave in leads V2–V3 ≥20 ms or QS complex in leads V2 and V3|
|Q-wave ≥30 ms and ≥0.1 mV deep or QS complex in leads I, II, aVL, aVF or V4–V6 in any 2 leads of a contiguous lead grouping (I, aVL, V6; V4–V6; II, III, and aVF)|
|R-wave ≥40 ms in V1–V2 and R/S ≥1 with a concordant positive T-wave in the absence of a conduction defect|
TIMI = Thrombolysis In Myocardial Infarction.