Investigation of the Direct and Indirect Signal Contributions of Brain Haematoma in Near Infrared Spectroscopy

Eiji Okada, Yukari Tanigawa, Yukio Yamada, Michael Firbank, David T. Delpy

研究成果: Conference contribution

抄録

The direct and indirect contribution of brain haematoma to the near infrared spectroscopy instrument signal has been investigated by both experiment and Monte Carlo prediction. Absorption change by the haematoma (the direct effect) strongly contributes to change in both intensity and mean time of flight of the detected signal when the haematoma is located at or near the surface of the brain. In cases where the haematoma is located more than 10 mm below the brain surface the direct signal effect is negligible. However the haematoma is still indirectly detectable if it causes brain swelling because the detected light intensity is very sensitive to changes in the CSF thickness.

本文言語English
ホスト出版物のタイトルAdvances in Optical Imaging and Photon Migration, AOIPM 1998
出版社Optica Publishing Group (formerly OSA)
ページ7-10
ページ数4
ISBN(電子版)1557525463
出版ステータスPublished - 1998
イベントAdvances in Optical Imaging and Photon Migration, AOIPM 1998 - Orlando, United States
継続期間: 1998 3月 8 → …

出版物シリーズ

名前Optics InfoBase Conference Papers

Conference

ConferenceAdvances in Optical Imaging and Photon Migration, AOIPM 1998
国/地域United States
CityOrlando
Period98/3/8 → …

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 材料力学

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