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  1. 会議・講演資料

Superficial vascular imaging system using near infrared radiation and tomo-synthesis algorithm, Tuned-Aperture Computed Tomography

https://kitami-it.repo.nii.ac.jp/records/7542
0b1ffa21-2b08-4af9-8395-b71517b96a62
名前 / ファイル ライセンス アクション
Hayakawa_S26-S27_final_CARS2008.pdf Hayakawa_S26-S27_final_CARS2008.pdf (179.9 kB)
Item type 会議発表論文 / Conference Paper(1)
公開日 2013-03-18
タイトル
言語 en
タイトル Superficial vascular imaging system using near infrared radiation and tomo-synthesis algorithm, Tuned-Aperture Computed Tomography
言語
言語 eng
キーワード
言語 en
主題Scheme Other
主題 near infrared imaging
キーワード
言語 en
主題Scheme Other
主題 tomo-synthesis
キーワード
言語 en
主題Scheme Other
主題 vascular imaging
キーワード
言語 en
主題Scheme Other
主題 vein pattern
資源タイプ
資源 http://purl.org/coar/resource_type/c_5794
タイプ conference paper
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
その他のタイトル
その他のタイトル CARDIAC AND VASCULAR IMAGING
言語 en
著者 Hayakawa, Y.

× Hayakawa, Y.

WEKO 38582

en Hayakawa, Y.

Search repository
Miyoseta, Y.

× Miyoseta, Y.

WEKO 38583

en Miyoseta, Y.

Search repository
Yamashita, H.

× Yamashita, H.

WEKO 38584

en Yamashita, H.

Search repository
Sagawa, M.

× Sagawa, M.

WEKO 38585

en Sagawa, M.

Search repository
抄録
内容記述タイプ Abstract
内容記述 To develop the superficial vascular imaging system using near infrared radiation and tomo-synthesis algorithm, Tuned-Aperture Computed Tomography. Near infrared sensitive CCD camera was surrounded by approximately sixty light emitting diodes, which have alternating wavelengths of 700 nm and 810 nm. NIR-sensitive camera detected the reflected NIR from superficial subcutaneous tissues.
By rotating the camera and LEDs, multiple near infrared projections of superficial vascular images were obtained at each wavelength, and tomo-synthesis algorithm in accordance with the optical aperture theory was applied to a group of images. The depth discrimination was obtained by the TACT program. Due to the difference and similarity in the absorption coefficients at 700 nm, 810 nm and 940 nm wavelength, the venous oxygenation index (VOI) was estimated by signal intensities at each wavelength. The VOI was seemed to reflect the oxygen saturation level. Results: The superficial vascular imaging system using near infrared radiation and tomo-synthesis algorithm created thin tomograms of superficial vascular subcutaneous tissues. Changes in VOL after the load test were more significantly observed on tomograms than on projection images. The superficial vascular imaging system using near infrared radiation and tomo-synthesis algorithm enable to carry out the non-invasive tomograms and provide estimates of in oxygen saturation. Also we confirmed that the system is the beneficial tool for finding subcutaneous foreign bodies.
言語 en
内容記述
内容記述タイプ Other
内容記述 Proceedings of the 22nd International Congress and Exhibition, Barcelona, Spain, June 25-28, 2008
言語 en
書誌情報 International Journal of Computer Assisted Radiology and Surgery

巻 3, 号 1 Suppl., p. S26-S27, 発行日 2008-06
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://doi.org/10.1007/s11548-008-0168-y
著者版フラグ
値 author
出版者
出版者 Springer
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