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. 2019 Jan 30;8:18. doi: 10.1038/s41377-019-0130-5

Fig. 3. Imaging performance characterization of the TROPUS system in the tissue-mimicking phantom.

Fig. 3

a Optoacoustic tomographic reconstruction of the phantom. Trajectories of the radial intensity profiles used for the spatial resolution characterization are marked in blue. b The corresponding reflection ultrasound-computed tomography (RUCT) image of the phantom. c Acoustic attenuation image of the phantom reconstructed using transmission ultrasound (TUCT-AA). d The corresponding speed of sound (TUCT-SoS) image. e Measured and fitted in-plane resolution as a function of distance from the array center for all the four cases