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6 January 2014 Methylene blue microbubbles as a model dual-modality contrast agent for ultrasound and activatable photoacoustic imaging
Mansik Jeon, Wentao Song, Elizabeth Huynh, Jungho Kim, Jeesu Kim, Brandon L. Helfield, Benjamin Y. C. Leung, David E. Geortz, Gang Zheng, Jungtaek Oh, Jonathan F. Lovell, Chulhong Kim
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Journal of Biomedical Optics, Vol. 19, Issue 1, 016005 (January 2014). https://doi.org/10.1117/1.JBO.19.1.016005
Abstract
Ultrasound and photoacoustic imaging are highly complementary modalities since both use ultrasonic detection for operation. Increasingly, photoacoustic and ultrasound have been integrated in terms of hardware instrumentation. To generate a broadly accessible dual-modality contrast agent, we generated microbubbles (a standard ultrasound contrast agent) in a solution of methylene blue (a standard photoacoustic dye). This MB 2 solution was formed effectively and was optimized as a dual-modality contrast solution. As microbubble concentration increased (with methylene blue concentration constant), photoacoustic signal was attenuated in the MB 2 solution. When methylene blue concentration increased (with microbubble concentration held constant), no ultrasonic interference was observed. Using an MB 2 solution that strongly attenuated all photoacoustic signal, high powered ultrasound could be used to burst the microbubbles and dramatically enhance photoacoustic contrast (<800 -fold increase), providing a new method for spatiotemporal control of photoacoustic signal generation.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2014/$25.00 © 2014 SPIE
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Mansik Jeon, Wentao Song, Elizabeth Huynh, Jungho Kim, Jeesu Kim, Brandon L. Helfield, Benjamin Y. C. Leung, David E. Geortz, Gang Zheng, Jungtaek Oh, Jonathan F. Lovell, and Chulhong Kim "Methylene blue microbubbles as a model dual-modality contrast agent for ultrasound and activatable photoacoustic imaging," Journal of Biomedical Optics 19(1), 016005 (6 January 2014). https://doi.org/10.1117/1.JBO.19.1.016005
Published: 6 January 2014
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KEYWORDS
Ultrasonography
Photoacoustic spectroscopy
Imaging systems
Absorption
Magnesium
Photoacoustic imaging
Transducers
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