Photoacoustic imaging of early gastric cancer diagnosis based on long focal area ultrasound transducer

6th conference on Advances in Optoelectronics and Micro/nano-optics

Wu, Huaqin^1 ; Li, Zuoran^1 ; Liu, Lantian^1 ; Li, Zhifang^1 ; Wu, Shulian^1 ; Li, Hui^1

Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Normal University, Fuzhou, China^1

关键词: Focus ultrasonic transducer;    Gastric neoplasms;    Light energy deposition;    Photo-acoustic imaging;    Photoacoustic signals;    Photoacoustic tomography;    Structural characteristics;    Ultrasound transducers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/844/1/012051/pdf
DOI  :  10.1088/1742-6596/844/1/012051

来源: IOP

【 摘 要 】

We illustrated a novel imaging method to diagnose gastric neoplasms via photoacoustic tomography (PAT). Depending on the structural characteristics of gastric cavity, we used column diffusion fiber to irradiate the stomach tissue through the esophagus, and the externally placed telecentric focus ultrasonic transducer detected photoacoustic signals from the gastric tissue. We reconstructed the distribution of light energy deposition of the simulated gastric tumor, and obtained the location and size information of gastric tumor.