@inproceedings{1f297a01f9ab424195603ecb269ef4f7,
title = "Methylene blue microbubbles (MB2) as a dual modal contrast agent for photoacoustic and ultrasound imaging",
abstract = "We have demonstrated a novel microbubbles methylene blue solution, called to MB2 solution for a dual modality contrast. We have photoacoustically and ultrasonically imaged and quantified aqueous solutions of MB2 by varying the concentration of either microbubbles or methylene blue to investigate the dual modal imaging capability. Interestingly, as the microbubbles concentration increased with the constant methylene blue concentration, photoacoustic (PA) signal was greatly attenuated in the MB 2 solution. Conversely, when methylene blue concentration increased with the fixed microbubbles concentration, no interference was observed in ultrasound (US) signals. To further confirm our findings, we switched the PA and ultrasound (US) signals using conventional ultrasound. We compared the PA and US signals of the MB2 solution before and after sonication. The PA amplitude increased 2.5 times. Conversely, the US signals were initially strong, but decreased 2.5 times following sonication. Moreover, we used a clinically modified PA/US imaging system to disrupt the microbubbles in MB2 and recover the PA signals.",
keywords = "Activatable photoacoustic imaging, Dual modality contrast agent, Methylene blue, Microbubbles, Ultrasound imaging",
author = "Mansik Jeon and Wentao Song and Jeesu Kim and Jungho Kim and Jungtaek Oh and Jonathan Lovell and Chulhong Kim",
year = "2014",
doi = "10.1117/12.2040895",
language = "English",
isbn = "9780819498564",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
booktitle = "Photons Plus Ultrasound",
address = "United States",
note = "Photons Plus Ultrasound: Imaging and Sensing 2014 ; Conference date: 02-02-2014 Through 05-02-2014",
}