Experimental comparison of using continuous-wave and frequency-domain diffuse optical imaging systems to detect heterogeneities

2001 ◽  
Author(s):  
Quan Zhang ◽  
Thomas J. Brukilacchio ◽  
Thomas Gaudett ◽  
Lai Wang ◽  
Ang Li ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Frequency Domain ◽  
Continuous Wave ◽  
Imaging Systems ◽  
Experimental Comparison ◽  
Diffuse Optical Imaging

A theoretical study of digital silicon photomultiplier utilization in diffuse optical imaging systems

2019 ◽  
Vol 64 (3) ◽  
pp. 357-363 ◽  
Author(s):  
Taha Haddadifam ◽  
Mohammad Azim Karami
Keyword(s):  
Optical Imaging ◽  
Continuous Wave ◽  
Dynamic Range ◽  
Signal To Noise Ratio ◽  
High Sensitivity ◽  
High Dynamic Range ◽  
Diffuse Optical Imaging ◽  
Silicon Photomultiplier ◽  
Thoracic Imaging ◽  
Low Level

Abstract Digital silicon photomultiplier (dSiPM) is introduced for diffuse optical imaging (DOI) applications instead of conventional photomultiplier tubes and avalanche photodiodes (APDs) as a state-of-the-art detector. According to the low-level light regime in DOI applications, high sensitivity and high dynamic range (DR) image sensors are needed for DOI systems. dSiPM is proposed as a developing detector which can detect low-level lights. Also, an accurate equation is obtained for calculating the DR of dSiPMs. Different dSiPMs and the corresponding benefits are studied for DOI applications. Furthermore, a 120 dB DR dSiPM is chosen for use in DOI systems. It is shown that dSiPMs can be utilized in DOI configurations such as time domain (TD), frequency domain (FD) and continuous wave (CW) systems. Ultimately, by utilizing dSiPM in DOI systems, the DOI method can be used for thoracic imaging due to the high DR and signal-to-noise ratio (SNR) of the detector.

Experimental Comparison of Continuous-Wave and Frequency-Domain Fluorescence Tomography in a Commercial Multi-Modal Scanner

2015 ◽  
Vol 34 (6) ◽  
pp. 1197-1211 ◽  
Author(s):  
Yujie Lu ◽  
Chinmay D. Darne ◽  
I-Chih Tan ◽  
Banghe Zhu ◽  
Ryan Rightmer ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Continuous Wave ◽  
Experimental Comparison ◽  
Fluorescence Tomography
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