Phantom experiment on relationship between activated position of cerebral cortex and NIR signal

T. Kadoya, Eiji Okada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Near infrared topographic imaging is effective to obtain the functional image of brain-cortex. The image is reconstructed from the change in light intensity detected with multi-channel source-detector pairs. Since the volume of brain tissue sampled by each source-detector pair is affected the scattering of tissue, it is important to evaluate the effect of scattering on the spatial resolution of the reconstructed image. In this study, the absorption change of various sizes at various positions in the adult head phantom is reconstructed by multi-channel measurements to evaluate the spatial resolution of topographic imaging. Since the heterogeneity of tissue, especially presence of low scattering CSF layer, affects the light propagation in the adult brain, the phantom consists of three layers. The diameter of the absorber is varied from 10 to 20 mm. The position of reconstructed absorber in the topographic image agrees well with that of the absorber in the brain layer of the phantom. The size of reconstructed absorber in the images is considerably broader than that of the absorber.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsB. Chance, R.R. Alfano, B.J. Tromberg, M. Tamura, E.M. Sevick-Muraka
Pages558-565
Number of pages8
Volume4250
DOIs
Publication statusPublished - 2001
EventOptical Tomography and Spectroscopy of Tissue IV - San Jose, CA, United States
Duration: 2001 Jan 212001 Jan 23

Other

OtherOptical Tomography and Spectroscopy of Tissue IV
CountryUnited States
CitySan Jose, CA
Period01/1/2101/1/23

Fingerprint

cerebral cortex
Brain
absorbers
brain
Scattering
Tissue
Experiments
Detectors
spatial resolution
Light propagation
scattering
Infrared imaging
cortexes
detectors
Light sources
luminous intensity
Imaging techniques
propagation

Keywords

  • Head phantom
  • Spatial resolution
  • Topographic imaging

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kadoya, T., & Okada, E. (2001). Phantom experiment on relationship between activated position of cerebral cortex and NIR signal. In B. Chance, R. R. Alfano, B. J. Tromberg, M. Tamura, & E. M. Sevick-Muraka (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4250, pp. 558-565) https://doi.org/10.1117/12.434531

Phantom experiment on relationship between activated position of cerebral cortex and NIR signal. / Kadoya, T.; Okada, Eiji.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / B. Chance; R.R. Alfano; B.J. Tromberg; M. Tamura; E.M. Sevick-Muraka. Vol. 4250 2001. p. 558-565.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kadoya, T & Okada, E 2001, Phantom experiment on relationship between activated position of cerebral cortex and NIR signal. in B Chance, RR Alfano, BJ Tromberg, M Tamura & EM Sevick-Muraka (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4250, pp. 558-565, Optical Tomography and Spectroscopy of Tissue IV, San Jose, CA, United States, 01/1/21. https://doi.org/10.1117/12.434531
Kadoya T, Okada E. Phantom experiment on relationship between activated position of cerebral cortex and NIR signal. In Chance B, Alfano RR, Tromberg BJ, Tamura M, Sevick-Muraka EM, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4250. 2001. p. 558-565 https://doi.org/10.1117/12.434531
Kadoya, T. ; Okada, Eiji. / Phantom experiment on relationship between activated position of cerebral cortex and NIR signal. Proceedings of SPIE - The International Society for Optical Engineering. editor / B. Chance ; R.R. Alfano ; B.J. Tromberg ; M. Tamura ; E.M. Sevick-Muraka. Vol. 4250 2001. pp. 558-565
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