Enhancement of photoacoustic tomography in the tissue with speed-of-sound variance using ultrasound computed tomography*
Cheng Ren-Xiang, Tao Chao, Liu Xiao-Jun
       
Diagram of simulation setup. The dark gray dots are optical absorbers and light gray ellipses are the high SOS region. The US transducer array surrounded the specimen is used in both processes of US-CT and photoacoustic imaging.