TABLE 1.
Signal Strength of Plaque Components in Different MR Scanning Sequences
| MR Scanning Sequence | ||||
|---|---|---|---|---|
| Plaque Component | 3D TOF | T1WI | T2WI | PDWI |
| LRNC | − | −/↑ | −/↓ | −/↓ |
| IPH | ↑ | ↑ | −/↑ | −/↑ |
| Ca | ↓ | ↓ | ↓ | ↓ |
| Loose matrix | − | ↓ | ↑ | ↑ |
| Fibrous tissue | ↓ | − | − | |
− indicates isosignal; ↑, high signal; ↓, low signal; 3D TOF, 3-dimensional time-of-flight; Ca, calcification; IPH, intraplaque hemorrhage; LRNC, lipid-rich necrotic core; MR, magnetic resonance; PDWI, proton density-weighted imaging; T1WI, T1-weighted imaging; T2WI, T2-weighted imaging.