期刊
JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES
卷 8, 期 3, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1793545815410059
关键词
Tissue-mimicking phantoms; optical properties; near-infrared spectroscopy; head model
资金
- National Science Center [DEC-20011/03/D/ST7/03540]
- Foundation for Polish Science [173/UD/SKILLS/2012]
- DS Programs of the Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology
- European Cooperation in Science and Technology (COST) Action [BM1205]
- FiDiPro project, TEKES (Finnish Funding Agency for Technology and Innovation) [40111/11]
- Government of the Russian Federation [14.Z50.31.0004]
- Russian Presidential grant [NSh-703.2014.2]
Extensive research in the area of optical sensing for medical diagnostics requires development of tissue phantoms with optical properties similar to those of living human tissues. Development and improvement of in vivo optical measurement systems requires the use of stable tissue phantoms with known characteristics, which are mainly used for calibration of such systems and testing their performance over time. Optical and mechanical properties of phantoms depend on their purpose. Nevertheless, they must accurately simulate specific tissues they are supposed to mimic. Many tissues and organs including head possess a multi-layered structure, with specific optical properties of each layer. However, such a structure is not always addressed in the present-day phantoms. In this paper, we focus on the development of a plain-parallel multi-layered phantom with optical properties (reduced scattering coefficient mu'(s) and absorption coefficient mu(a)) corresponding to the human head layers, such as skin, skull, and gray and white matter of the brain tissue. The phantom is intended for use in noninvasive diffuse near-infrared spectroscopy (NIRS) of human brain. Optical parameters of the fabricated phantoms are reconstructed using spectrophotometry and inverse adding-doubling calculation method. The results show that polyvinyl chloride-plastisol (PVCP) and zinc oxide (ZnO) nanoparticles are suitable materials for fabrication of tissue mimicking phantoms with controlled scattering properties. Good matching was found between optical properties of phantoms and the corresponding values found in the literature.
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