Abstract
Study of blood and its components by terahertz pulsed spectroscopy
Highlights
The prospect of widely using THz radiation in medical diagnosis and therapy raises the question of interaction of human tissues with THz radiation
It has been shown that the absorption coefficient decrease linearly with increasing red blood cells (RBC) concentration in whole blood [3, 5, 6]
The excellent linearity between the THz signal and the RBC concentration was confirmed in a polyurethane resin tube using a THz imaging method
Summary
The prospect of widely using THz radiation in medical diagnosis and therapy raises the question of interaction of human tissues with THz radiation. It has been shown that the absorption coefficient decrease linearly with increasing RBC concentration in whole blood [3, 5, 6]. These results demonstrate that THz-TDS imaging can facilitate the quantitative analysis of blood [5]. A clinical study of ex-vivo fresh human whole blood showed that triglycerides and the number of RBC were two dominant factors to have significant negative correlation to the sub-THz absorption coefficients.
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