Aya Kamaya, MD

Investigating Large 2D Arrays for Photoacoustic and Acoustic Imaging using CMUT Technology

Vaithilingam S, Ma TJ, Furukawa Y, Oralkan O, Kamaya A, Torashima K, Kupnik M, Wygant IO, Zhuang X, Jeffrey RB, Khuri-Yakub BT. IEEE International Ultrasonics Symposium Proceedings. 2008: 1238-1241

In this paper, we investigate using a large aperture (64 x 64 element array) to perform photoacoustic and acoustic imaging by mechanically scanning a smaller array (16 x 16 elements) of capacitative micromachined ultrasonic tranducers (CMUTs). We show results from the imaging of: 1) A fishing -line phantom. 2) Tubes embedded in chicken breast tissue containing the contrast agent indocyanine green (ICG), pig blood and a mixture of the two. The tubes were embedded at a depth of 0.8 cm inside the tissue and were at an overall distance of 1.9 cm from the CMUT array. Three-dimensional volume rendered images of traditional pulse-echo data as well as photoacoustic data are shown.