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Contrast agents and dilution ratios used for attenuation measurements
| Agent | Gas | Dilution ratio |
|---|---|---|
| Definity | C3F8 | 1:2000 |
| MicroMarker | C4F10 | 1:500 |
| ELIP | Air | 1:200 |
| Enhanced ELIP | Air | 1:200 |
| rt-PA-loaded ELIP | Air | 1:200 |
ELIP = echogenic liposomes; rt-PA = recombinant tissue plasminogen activator.
