| TID | time interval difference [imaging]; titrated initial dose |
|---|---|
| VEPID | video-based electronic portal imaging device |
| VIGRE | velocity imaging with gradient-recalled echos |
| VRI | viral respiratory infection; virtual reality imaging |
| THI | Tissue harmonic imaging |
|---|---|
| FISP | fast imaging with a steady-state precession |
| 123I | imaging with |
| (1)H MRSI | magnetic resonance spectroscopic imaging |