Presentation 2020-01-22
[Poster Presentation] Effects of Ultrasound propagation in skull bone on Transcranial Doppler method
Kota Kitamura, Kozue Saito, Masaya Saeki, Itsuki Michimoto, Mami Matsukawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently, Transcranial Doppler method (TCD) is used for the evaluation of blood flow and the detection of emboli in the brain. This method sends ultrasound through the thinnest part of the temporal bone and observes blood flow in Middle Cerebral Artery (MCA) and Anterior Cerebral Artery (ACA). However, the observation using TCD is often difficult for Japanese elderly women. Osteoporosis is common in Japanese elderly women and obstructs the ultrasound propagation. Therefore, we created a temporal bone model in osteoporosis and studied the ultrasound propagation through the temporal bone using the Finite Difference Time Domain (FDTD) method. As a result, the ultrasound attenuated well in the osteoporotic model.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) TCD method / Temporal bone / FDTD method
Paper # US2019-89
Date of Issue 2020-01-15 (US)

Conference Information
Committee EA / US
Conference Date 2020/1/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Doshisha Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, and Related Topics
Chair Kenichi Furuya(Oita Univ.) / Jun Kondo(Shizuoka Univ.)
Vice Chair Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.)
Secretary Suehiro Shimauchi(NHK) / Shigeto Takeoka(Univ. of Tokyo) / Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.)
Assistant Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Mototaka Arakawa(Tohoku Univ.)

Paper Information
Registration To Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Effects of Ultrasound propagation in skull bone on Transcranial Doppler method
Sub Title (in English) Simulation using FDTD method
Keyword(1) TCD method
Keyword(2) Temporal bone
Keyword(3) FDTD method
1st Author's Name Kota Kitamura
1st Author's Affiliation Doshisha University(Doshisha Univ.)
2nd Author's Name Kozue Saito
2nd Author's Affiliation Nara Medical University/National cerebral and Cardiovascular Center(Nara Med. Univ./NCVC)
3rd Author's Name Masaya Saeki
3rd Author's Affiliation Doshisha University(Doshisha Univ.)
4th Author's Name Itsuki Michimoto
4th Author's Affiliation Doshisha University(Doshisha Univ.)
5th Author's Name Mami Matsukawa
5th Author's Affiliation Doshisha University(Doshisha Univ.)
Date 2020-01-22
Paper # US2019-89
Volume (vol) vol.119
Number (no) US-374
Page pp.pp.103-106(US),
#Pages 4
Date of Issue 2020-01-15 (US)