It's taken a while to try and get my thoughts together on this one!

From what I understand you cannot have ST elevation in T3, so I would question the first contributor, though would not say it is wrong!

See:

http://66.102.9.104/search?q=cache:xLy08Xrbc30J:www.medspain...


Segmento ST
 isoelectrico
 esta a nivel de la linea de base
 no incluye ondas
 su morfologia es una linea recta horizontal
Debe estudiarse siempre en cada derivacion y es basico en el diagnostico de la cardiopatia isquemica.
 desviacion de la linea de base 1 mm hacia arriba o hacia abajo
 Supradesnivelado
 Infradesnivelado
 forma
 Concavo
 Convexo
 Rectificado
 otras

http://66.102.9.104/search?q=cache:qviUUM1VCf4J:www.eboncall...


Independent blinded reference standard, applied in all patients from a consecutive appropriate spectrum.
Reference standard:
 ECGs read by electrocardiographers. The ECG readings were compared with: ST-segment depression or elevation of 1 mm or more, ST-segment straightening or depression of less than 1 mm, T-wave depression of 1 mm or more, T-wave flattening and T-wave elevation.
Diagnostic test: Physician read ST-segment and T-wave changes of the ECGs. Physicians assigned a diagnosis of acute myocardial infarction, angina pectoris or not acute ischaemic heart disease to each patient based on clinical presentation. Trainee physicians (in post-graduate years one, two and three, and those physicians identifying themselves as trainees during post-graduate years four and five) were analysed separately.
The evidence

Best of luck to you on this one!