[11p-N302-1~12] 12.7 Biomedical Engineering and Biochips

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11p-N302-4] Vascular Phantom Imaging using a Dual-Readout Self-Reset Image Sensor for Blood Flow Measurement

〇Kenji Morimoto¹, Ryoma Okada¹, Yoshinori Sunaga¹, Makito Haruta^1,2, Hironari Takehara¹, Hiroyuki Tashiro^1,3, Jun Ohta¹, Kiyotaka Sasagawa¹ (1.Nara Institute of Science and Technology, 2.Chitose Institute of Science and Technology, 3.Kyushu University)

Keywords:

CMOS image sensor,Self reset

In this study, we conducted imaging experiments on a vascular phantom using a self-resetting image sensor. This sensor avoids pixel saturation by autonomously resetting each pixel, thereby achieving a high signal-to-noise ratio. In the experiment, a mixture of ink and water was flowed through a phantom simulating microvessels to mimic blood flow. By enabling the self-reset function, we were able to detect minute changes in light transmittance, visualize the concentration distribution of the fluid, and demonstrate the potential for applying this technique to measure fluctuations in blood flow velocity and the distribution of red blood cell concentration.