TABLE 1.
Magnetic resonance scoring systems
| Score | MRI | MRI/MRSI |
|---|---|---|
| 0 – definitely insignificant PCa |
No regions with abnormal T2W signal |
No abnormality on MRI or no suspicious volume on MRSI |
| 1 – Probably insignificant PCa |
Non-nodular decreased T2W signal < 0.5 cm3 |
Total combined MRI and MRSI suspicious volume < 0.5 cm3 |
| 2 – Indeterminate | Non-nodular reduced T2W signal > 0.5 cm3 or nodular < 0.5 cm3 |
Total combined MRI and MRSI suspicious volume ≈0.5 cm3 |
| 3 – Definitely significant PCa |
Nodular reduced T2W signal > 0.5 cm3 |
Combined MRI and MRSI suspicious volume > 0.5 cm3 |
MRSI, magnetic resonance spectroscopic imaging; PCa, prostate cancer; T2W, T2-weighted.