infarction vs myocardial infarct

infarction

noun
  • The process which causes an infarct. 

  • An infarct (an area of ischemic necrosis). 

myocardial infarct

noun
  • Synonym of myocardial infarction 

How often have the words infarction and myocardial infarct occurred in a corpus of books? (source: Google Ngram Viewer )