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Showing posts with label Tzung-Dau Wang. Show all posts
Showing posts with label Tzung-Dau Wang. Show all posts
Monday, March 12, 2018
Abstract-High Sensitivity of T-Ray for Thrombus Sensing
Chi-Kuang Sun, Hui-Yuan Chen, Tzu-Fang Tseng, Borwen You, Ming-Liang Wei, Ja-Yu Lu, Ya-Lei Chang, Wan-Ling Tseng, Tzung-Dau Wang
https://www.nature.com/articles/s41598-018-22060-y
Atherosclerotic plaque rupture or erosion and subsequent development of platelet-containing thrombus formation is the fundamental cause of cardiovascular disease, which is the most common cause of death and disability worldwide. Here we show the high sensitivity of 200–270 GHz T-ray to distinguish thrombus formation at its early stage from uncoagulated blood. A clinical observational study was conducted to longitudinally monitor the T-ray absorption constant of ex-vivo human blood during the thrombus formation from 29 subjects. Compared with the control group (28 subjects) with uncoagulated blood samples, our analysis indicates the high sensitivity of 200–270 GHz T-Ray to detect thrombus with a low p-value < 10−5. Further analysis supports the significant role of platelet-activated thrombotic cascade, which modified the solvation dynamics of blood and occurred during the early coagulation stage, on the measured T-Ray absorption change. The ability to sense the thrombus formation at its early stage would hold promise for timely identification of patients at risk of various atherothrombotic disorders and save billions of lives.
Friday, April 3, 2015
Abstract-Pilot clinical study to investigate the human whole blood spectrum characteristics in the sub-THz region
Pilot clinical study to investigate the human whole blood spectrum characteristics in the sub-THz region
Tzu-Fang Tseng, Borwen You, Hao-Cheng Gao, Tzung-Dau Wang, and Chi-Kuang Sun »View Author Affiliations
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Optics Express, Vol. 23, Issue 7, pp. 9440-9451(2015)
http://dx.doi.org/10.1364/OE.23.009440
http://dx.doi.org/10.1364/OE.23.009440
View Full Text Article
http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-23-7-9440
We have conducted a pilot clinical study to not only investigate the sub-THz spectra of ex-vivo fresh human whole blood of 28 patients following 8-hours fasting guideline, but also to find out the critical blood ingredients of which the concentration dominantly affects those sub-THz spectra. A great difference between the sub-THz absorption properties of human blood among different people was observed, while the difference can be up to ~15% of the averaged absorption coefficient of the 28 samples. Our pilot clinical study indicates that triglycerides and the number of red blood cells were two dominant factors to have significant negative correlation to the sub-THz absorption coefficients.
© 2015 Optical Society of America
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