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©2010 Baishideng.
World J Gastrointest Endosc. Jul 16, 2010; 2(7): 237-243
Published online Jul 16, 2010. doi: 10.4253/wjge.v2.i7.237
Published online Jul 16, 2010. doi: 10.4253/wjge.v2.i7.237
Table 1 Second generation contrast agents currently available
Contrast agent | Shell components | Gas | Mechanical index |
Definity® | Phospholipid | Perfluoropropane | Low |
Imagent® | Phospholipid | Perfluorohexane | Low |
SonoVue® | Phospholipid | Sulfur hexafluoride | Low |
Sonavist® | Polymer | Sulfur hexafluoride | Low |
Sonazoid® | Lipid | Perfluorocarbon | Low |
Optison® | Albumin | Perfluoropropane | Low |
Sonogen® | Surfactant | Perfluoropentane | Low |
Levovist® | Galactose/Palmitic acid | Air | High |
Albunex® | Albumin | Air | High |
Table 2 Effect of mechanical index on second generation microbubbles
Mechanical index | Effect on microbubble oscillation | Relationship between emitted sound waves and detected signal |
Low (< 0.1) | Symmetrical | Linear |
Moderate (0.1-0.6) | Asymmetrical | Non-linear |
High (> 0.6) | Destruction | N/A |
Table 3 Accuracy of contrast enhanced endoscopic ultrasound versus other imaging modalities
- Citation: Mohamed RM, Yan BM. Contrast enhanced endoscopic ultrasound: More than just a fancy Doppler. World J Gastrointest Endosc 2010; 2(7): 237-243
- URL: https://www.wjgnet.com/1948-5190/full/v2/i7/237.htm
- DOI: https://dx.doi.org/10.4253/wjge.v2.i7.237