What question did this study set out to answer?

To determine how different bubble size classes contribute to the fundamental acoustic imaging echogenicity of the ultrasound contrast agent SonoVue.

November 1, 2000Investigative Radiology

Influence of Bubble Size Distribution on the Echogenicity of Ultrasound Contrast Agents

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Authors

JGJean-Marie GorceInstitut National des Sciences Appliquées de Lyon MAMarcel ArditiÉcole Polytechnique Fédérale de Lausanne MSMichel SchneiderMétéo-France

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Implication

Acoustic modeling study demonstrates that microbubbles between 3 and 9 micrometers generate 80% of SonoVue echogenicity, indicating that gas volume rather than bubble count predicts contrast efficacy.

Key Points

To determine how different bubble size classes contribute to the fundamental acoustic imaging echogenicity of the ultrasound contrast agent SonoVue.
Developed and validated an acoustic response simulation model against experimental data for SonoVue (bubble diameter distribution roughly 0.7 to 10 µm).
Calculated the composite acoustic response by partitioning a standard SonoVue distribution into non-overlapping size classes and comparing number, surface, and volume metrics.
Microbubbles smaller than 2 µm represented 60% of total bubble count but contributed only 5% of total gas volume and negligible acoustic echogenicity at medical ultrasound frequencies.
Microbubbles between 3 and 9 µm in diameter provided 80% of the total acoustic efficacy, identifying bubble volume as a superior metric over bubble count for predicting contrast efficacy.

Cite This Study

Gorce et al. (2000) studied this question.

synapsesocial.com/papers/6a7797a4a0847c3df1ec8a84 https://doi.org/10.1097/00004424-200011000-00003

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Influence of Bubble Size Distribution on the Echogenicity of Ultrasound Contrast Agents

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Implication

Key Points

Cite This Study

Influence of Bubble Size Distribution on the Echogenicity of Ultrasound Contrast Agents

Discussion

Member takes

Implication

Key Points

Cite This Study

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