Presentation 2015-07-15
Automatic determination of blood flow velocity in brain microvessel of rat using a small implantable CMOS imaging device
Haruka Dejima, Tetsuo Sato, Makito Haruta, Hitomi Nakazawa, Takashi Tokuda, Jun Ohta, Shigehiko Kanaya,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) are often used for imaging particularly active brain locations. However, spatial resolution of these devices is at most 0.5mm and thus is not sufficient to investigate blood flow changes at micro-vascular level. In this study, we use the small implantable CMOS imaging device developed by our research group. The conventional methods for determining blood flow velocity have had limitations with inevitable variations arising due to manual measurement. In the experiment, the blood flow velocity was estimated by focusing on the movement of red blood cells in the videos. Our proposed method applies correlation and automatically determines the blood flow velocity without physical inspection.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) blood flow velocity / brain microvessel / CMOS imaging device / automatic determination
Paper # MI2015-45
Date of Issue 2015-07-07 (MI)

Conference Information
Committee MI
Conference Date 2015/7/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Sun Refle Hakodate
Topics (in Japanese) (See Japanese page)
Topics (in English) ICT and Medical Imaging, General topics
Chair Yoshitaka Masutani(Hiroshima City Univ.)
Vice Chair Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.)
Secretary Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.)
Assistant Ryo Haraguchi(NCVC) / Yasushi Hirano(Yamaguchi Univ.)

Paper Information
Registration To Technical Committee on Medical Imaging
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Automatic determination of blood flow velocity in brain microvessel of rat using a small implantable CMOS imaging device
Sub Title (in English)
Keyword(1) blood flow velocity
Keyword(2) brain microvessel
Keyword(3) CMOS imaging device
Keyword(4) automatic determination
1st Author's Name Haruka Dejima
1st Author's Affiliation Nara Institute of Science and Technology(NAIST)
2nd Author's Name Tetsuo Sato
2nd Author's Affiliation Nara Institute of Science and Technology(NAIST)
3rd Author's Name Makito Haruta
3rd Author's Affiliation Nara Institute of Science and Technology(NAIST)
4th Author's Name Hitomi Nakazawa
4th Author's Affiliation Nara Institute of Science and Technology(NAIST)
5th Author's Name Takashi Tokuda
5th Author's Affiliation Nara Institute of Science and Technology(NAIST)
6th Author's Name Jun Ohta
6th Author's Affiliation Nara Institute of Science and Technology(NAIST)
7th Author's Name Shigehiko Kanaya
7th Author's Affiliation Nara Institute of Science and Technology(NAIST)
Date 2015-07-15
Paper # MI2015-45
Volume (vol) vol.115
Number (no) MI-139
Page pp.pp.73-77(MI),
#Pages 5
Date of Issue 2015-07-07 (MI)