Temperature-Dependent Differences in the Nonlinear Acoustic Behavior of Ultrasound Contrast Agents Revealed by High-Speed Imaging and Bulk Acoustics

2011 ◽  
Vol 37 (9) ◽  
pp. 1509-1517 ◽  
Author(s):  
Helen Mulvana ◽  
Eleanor Stride ◽  
Mengxing Tang ◽  
Jo V. Hajnal ◽  
Robert Eckersley
Keyword(s):  
Contrast Agents ◽  
High Speed ◽  
Ultrasound Contrast Agents ◽  
Acoustic Behavior ◽  
Temperature Dependent ◽  
High Speed Imaging ◽  
Ultrasound Contrast ◽  
Nonlinear Acoustic

On the rigidity of four hundred Pickering-stabilised microbubbles

2022 ◽  
Author(s):  
Nicole Anderton ◽  
Craig S Carlson ◽  
Ryunosuke Matsumoto ◽  
Ri-ichiro Shimizu ◽  
Albert T. Poortinga ◽  
...  
Keyword(s):  
Contrast Agents ◽  
High Speed ◽  
Ultrasound Contrast Agents ◽  
High Speed Photography ◽  
Multiple Time ◽  
Ultrasound Contrast ◽  
Low Amplitude

Abstract This study explores the rigidity of Pickering-stabilised microbubbles subjected to low-amplitude ultrasound. Such microbubbles might be suitable ultrasound contrast agents. Using an adapted Rayleigh-Plesset equation, we modelled the dynamics of microbubbles with a 7.6-N m−1 shell stiffness under 1-MHz, 0.2-MPa sonication. Such dynamics were observed experimentally, too, using high-speed photography. The maximum expansions were agreeing with those predicted for Pickering-stabilised microbubbles. Subjecting microbubbles to multiple time- delayed pulses yielded the same result. We conclude that Pickering-stabilised microbubbles remain very stable at low acoustic amplitudes.

Temperature Dependent Behavior of Ultrasound Contrast Agents

2010 ◽  
Vol 36 (6) ◽  
pp. 925-934 ◽  
Author(s):  
Helen Mulvana ◽  
Eleanor Stride ◽  
Jo V. Hajnal ◽  
Robert J. Eckersley
Keyword(s):  
Contrast Agents ◽  
Ultrasound Contrast Agents ◽  
Temperature Dependent ◽  
Ultrasound Contrast ◽  
Dependent Behavior ◽  
Temperature Dependent Behavior

Ultrasound contrast agents: microbubbles made simple for the pediatric radiologist

2021 ◽  
Author(s):  
Anush Sridharan ◽  
John R. Eisenbrey ◽  
Flemming Forsberg ◽  
Norbert Lorenz ◽  
Ludwig Steffgen ◽  
...  
Keyword(s):  
Contrast Agents ◽  
Ultrasound Contrast Agents ◽  
Pediatric Radiologist ◽  
Ultrasound Contrast
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