Rural Emergency Medicine Simulation Training and Resource - British Columbia
The 15 lead ECG and diagnosing Posterior or
'Right sided MI' go together.

This page will attempt to cover both topics.
Below is a link to the "15 Lead ECG" which is integral to knowing how
to evaluate posterior
and right sided MI.
Inferior MI and Right Ventricular (Posterior) MI present some challenges above the normal STEMI patients.
As such, one should be aware of the differences in approach.
It is advised to review the 15 lead ECG above. 
Below is the link to the Power Point on Inferior and Posterior MI.