Enhancement of photoacoustic tomography in the tissue with speed-of-sound variance using ultrasound computed tomography*
Cheng Ren-Xiang, Tao Chao, Liu Xiao-Jun
       
The images are reconstructed at Δ v = 140 m/s. (a) The SOS distribution obtained by US-CT. (b) and (c) PAT images obtained by the CT-corrected DAS and DAS directly.