Definition of Oral Activity Indices in Salivary Gland Scintigraphy
| Index | Definition |
|---|---|
| PRI | (y − x)/y × 100 (%) |
| POI | (z − x)/z × 100 (%) |
| TI | Time interval between perfusion peak and prestimulated maximum oral activity point (time interval between points X and Y) (min) |