Light absorption distribution for photoacoustic imaging of bladder by use of endoscopic light illumination

Autor: Hui Li, Mei-jin Zhang, Qing-lin Kong, Zheng-yu Li, Lili Zhu, Dong-qing Peng
Rok vydání: 2020
Předmět:
Zdroj: Optics in Health Care and Biomedical Optics X.
DOI: 10.1117/12.2573197
Popis: In recent years, bladder cancer has been a serious health concern around the world. As a rapidly growing imaging technique, photoacoustic imaging (PAI) was now being explored as an alternative for bladder imaging due to its non-invasive and non-ionizing nature. It was essential to know absorbed light distribution in bladder tissue which would influence the imaging depth and range of PAI. In the paper, optical model of human bladder was established, in which diffused light source was delivered through the urethra into the bladder cavity for endoscopic illumination. And Monte Carlo simulation method was adopted to calculate the light absorption distribution (LAD) in the bladder tissue. The shape and wavelength of light source were investigated in the simulation. The relevant conclusions would be significant for optimizing the light illumination in a PAI system for bladder cancer detection.
Databáze: OpenAIRE