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This work presents our preliminary results on developing a multi-modality imaging catheter enabling combined ultrasound and photoacoustic imaging. We have developed an optical fiber ring catheter for use with our previously demonstrated 9F, real-time, forward-looking intracardiac ultrasound imaging catheter. Our custom software provides real-time ultrasound and photoacoustic imaging on a PC-based...
In this work, we demonstrate 3-D photoacoustic imaging of optically absorbing targets embedded as deep as 5 cm inside a highly scattering background medium using a 2-D capacitive micromachined ultrasonic transducer (CMUT) array with a center frequency of 5.5 MHz. 3-D volumetric images and 2-D maximum intensity projection images are presented to show the objects imaged at different depths. Due to the...
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