Photoacoustic image quality enhancement by estimating mean sound speed based on optimum focusing

• Published in: Japanese Journal of Applied Physics Vol. 54; no. 7S1; pp. 7 - 17
• Main Authors: Cong, Bing, Kondo, Kengo, Namita, Takeshi, Yamakawa, Makoto, Shiina, Tsuyoshi
• Format: Journal Article
• Language: English
• Published: The Japan Society of Applied Physics 01.07.2015

A constant sound speed (i.e., 1540 m/s) is generally used in various ultrasound (US) and photoacoustic (PA) image reconstruction algorithms based on the assumption of a homogeneous sound speed in human tissue. However, the variation of the sound speed in human tissue can be as great as 10%, which ca...