| Term 
 
        | anterior wall MI leads affected |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | septal wall leads affected |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | lateral wall leads affected |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | inferior wall leads affected |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | posterior wall leads affected |  | Definition 
 
        | V1 to V4 reciprocal changes only |  | 
        |  | 
        
        | Term 
 
        | anterior wa;ll vessel involved |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | septal wall vessel involved |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | lateral wall vessel involved |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | inferior wall vessel involved |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | posterior wall vessel involved |  | Definition 
 
        | posteior descending branch |  | 
        |  |