Figure 1. Optoacoustic imaging taken in-vivo through a mouse kidney cross-section. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 1. Optoacoustic imaging taken in-vivo through a mouse kidney cross-section.

Caption

(a-b) Reconstructed image of absorption coefficient at (a) low and (b) high light fluence. The entire optoacoustic data (c) was generated using a modified model-based reconstruction algorithm designed to image the thermally excited third-order nonlinear susceptibility (TETONS). This algorithm processed optoacoustic signals acquired at two different light fluences, as shown in panels a and b. By analyzing the nonlinear variations in optoacoustic pressure and reconstructing the data with the modified algorithm, the image highlights differences in tissue TETONS and reveals structures within the kidney cross-section, particularly emphasizing the high-frequency components of the signal. Arrows 1 and 2 show the skin and muscle of the abdomen, respectively. Arrows 3-6 indicate structures within the kidney (Arrow 3: Capsule, Arrow 4: Cortex, Arrow 5: Medulla, and Arrow 6: Calyx).  (d) Anatomical reference for the kidney structures.

Credit

Malekzadeh-Najafabadi et al.

Usage Restrictions

Credit must be given to the creator.

License

CC BY

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.