Scoring Scale
| Score | Uptake criterion |
| 0 | Myocardium less than left ventricular blood pool |
| 1 | Myocardium equal to left ventricular blood pool |
| 2 | Myocardium greater than left ventricular blood pool but less than liver |
| 3 | Myocardium focally greater than liver |
| 4 | Myocardium diffusely greater than liver |