Optical imaging of arteriovenous fistula for clinical application

Clarification of transillumination image of blood vessel by image-subtraction

Hideaki Kamiyama, Masataka Kitama, Hisae O. Shimizu, Masaji Yamashita, Toru Yokoyama, Yohichiro Kojima, Koichi Shimizu

Research output: Contribution to journalArticle

Abstract

We have proposed a noninvasive technique to observe an arteriovenous fistula using an optical transillumination image of a blood vessel. To improve the accuracy of inner-diameter measurement of the vessel, we examined the effectiveness of the imagesubtraction technique using multi-wavelength light sources. In the experiment, we fabricated a model-phantom to simulate a human forearm. It contained the tube filled with replaceable absorber liquid which simulated the blood in different wavelengths of illuminating light. The transillumination images of the blood column were recorded with the liquid of different absorption coefficients. The imagesubtraction technique was applied and the images were analyzed. With the subtraction, the sharpness of the column image was improved by 55%, and the error in the diameter measurement was reduced from 28% to 4%. This result verified the effectiveness of the image-subtraction to promote the clinical application of the proposed technique for the controlled care of the arteriovenous fistula.

Original languageEnglish
Pages (from-to)593-594
Number of pages2
JournalTransactions of Japanese Society for Medical and Biological Engineering
Volume55
Issue numberProc
DOIs
Publication statusPublished - 2017

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Transillumination
Blood vessels
Blood
Imaging techniques
Wavelength
Liquids
Light sources
Experiments

Keywords

  • Arteriovenous fistula
  • Image-subtraction
  • Near-infrared light
  • Transillumination imaging

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Optical imaging of arteriovenous fistula for clinical application : Clarification of transillumination image of blood vessel by image-subtraction. / Kamiyama, Hideaki; Kitama, Masataka; Shimizu, Hisae O.; Yamashita, Masaji; Yokoyama, Toru; Kojima, Yohichiro; Shimizu, Koichi.

In: Transactions of Japanese Society for Medical and Biological Engineering, Vol. 55, No. Proc, 2017, p. 593-594.

Research output: Contribution to journalArticle

Kamiyama, Hideaki ; Kitama, Masataka ; Shimizu, Hisae O. ; Yamashita, Masaji ; Yokoyama, Toru ; Kojima, Yohichiro ; Shimizu, Koichi. / Optical imaging of arteriovenous fistula for clinical application : Clarification of transillumination image of blood vessel by image-subtraction. In: Transactions of Japanese Society for Medical and Biological Engineering. 2017 ; Vol. 55, No. Proc. pp. 593-594.
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