다채널 동시측정을 적용한 호모다인 주파수영역 확산 광 이미징 시스템의 구현 = Implementation of Multi-channel Concurrent Detection Homodyne Frequency-domain Diffuse Optical Imaging System

다국어 초록 (Multilingual Abstract)

In this paper, we developed a frequency-domain diffuse optical imaging (DOI) system for imaging non-invasively using near-infrared (NIR) light sources and detectors. 70-MHz modulation and a homodyne scheme were adopted. By calibration of the coupling coefficients, concurrent detection measurements by 4 detector sets were optimized. We presented experimental reconstruction images of absorption and scattering coefficients in a liquid phantom, located an anomaly in the phantom and determined its optical properties. The images by the multi-channel concurrent detection were improved over the results by single-channel sequential detection. Tomographic slices of absorption and scattering coefficients in the phantom with an anomaly were also presented.

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