| IMAI | internal mammary artery implant |
|---|---|
| IMG | inferior mesenteric ganglion; internal medicine group [practice]; international medical graduate |
| IMM | inhibitor-containing minimal medium; internal medial malleolus |
| IMN | internal mammary node |
| INREM | internal roentgen-equivalent, man |
| ISV | internal spermatic vein |
|---|---|
| ITA | internal thoracic arteries |
| ITA's | internal thoracic arteries |
| RITA | right internal thoracic artery |