Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Shinichiro Tadaoka"'
Publikováno v:
Ultrasound in Medicine & Biology. 25:1265-1274
This paper presents a numerical simulation method for evaluating the measurement accuracy of the high-frequency pulsed ultrasound Doppler velocimeter (PUDV). The frequency distribution of the Doppler signal from a sample volume is calculated by divid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bde9a56ad95278105d5c147c09ad833a
https://doi.org/10.1016/s0301-5629(99)00082-4
https://doi.org/10.1016/s0301-5629(99)00082-4
Autor:
Shinichiro Tadaoka, Akihiro Kimura, Shoso Nezuo, Toshitami Sawayama, Katsuhiko Tsujioka, Fumihiko Kajiya, Toyotaka Yada
Publikováno v:
Heart and Vessels. 8:91-97
This study was carried out to investigate the characteristics of coronary arterial flow in left ventricular hypertrophy secondary to systemic hypertension. The blood velocities in the left anterior descending coronary artery (LAD) were measured by a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46ba234b499712501040646d22a1b1f5
https://doi.org/10.1007/bf01744389
https://doi.org/10.1007/bf01744389
Autor:
Masami Goto, Y Ogasawara, M Yanaka, O Hiramatsu, K Tsujioka, Yoshifumi Wada, Shinichiro Tadaoka, Fumihiko Kajiya
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 258:H1042-H1048
The influence of the filling condition of the unstressed volume (UV) of intramyocardial vessels on the diastolic coronary arterial pressure-flow relationship was analyzed. UV is defined as the blood volume at zero transmural pressure. In seven anesth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52631ccf4403bf98a38d5ade9c2026e8
https://doi.org/10.1152/ajpheart.1990.258.4.h1042
https://doi.org/10.1152/ajpheart.1990.258.4.h1042
Autor:
Akihiro Kimura, Shinichiro Tadaoka, Toshitami Sawayama, Fumihiko Kajiya, Keiji Tamura, Kouichi Hasegawa, Shoso Nezuo, Katsuhiko Tsujioka, Toyotaka Yada, Yoshifumi Wada
Publikováno v:
Cardiovascular research. 25(11)
Study objective — The aim was to clarify the characteristics of the phasic blood velocity pattern and their possible causes in left ventricular hypertrophy secondary to systemic hypertension. Design — Measurements of blood velocities in the left
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe24ab90bbbebb7142c9b6d79e65c545
https://pubmed.ncbi.nlm.nih.gov/1839891
https://pubmed.ncbi.nlm.nih.gov/1839891
Autor:
Yoshifumi Wada, Katsuhiko Tsujioka, M. Kagiyama, Yasuo Ogasawara, Fumihiko Kajiya, Shinichiro Tadaoka, Toshitami Sawayama, Osamu Hiramatsu
Publikováno v:
Catheterization and cardiovascular diagnosis. 19(3)
The accuracy of 20-MHz Doppler catheter coronary artery velocimetry (Millar Instruments) was evaluated by model experiments using a turntable and a flow tube. In the turntable experiments, the flow away from the catheter tip (away flow) was significa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b703587f9d5ae48b870f72869275ebea
https://pubmed.ncbi.nlm.nih.gov/2138509
https://pubmed.ncbi.nlm.nih.gov/2138509
Autor:
Keiichiro Mito, Katsuhiko Tsujioka, Shinichiro Tadaoka, Yasuo Ogasawara, Osamu Hiramatsu, Fumihiko Kajiya
Publikováno v:
Coronary Circulation ISBN: 9784431680895
Our laser Doppler velocimeter (LDV) with an optical fiber is a powerful tool for the measurement of both coronary artery and vein flow velocities because of its excellent accessibility to the coronary vessels of a moving heart. In this paper, we brie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70f472e2b84d1c813bd606d80d4a3da8
https://doi.org/10.1007/978-4-431-68087-1_3
https://doi.org/10.1007/978-4-431-68087-1_3
Autor:
Satoshi Kakumae, Yoritsugu Harada, Shoso Nezuo, Motoo Yoneda, Koichi Hasegawa, Masatoshi Nakao, Kazuhiro Mitani, Toshitami Sawayama, Shinichiro Tadaoka, Masanobu Samukawa
Publikováno v:
Nihon Naika Gakkai Zasshi. 75:15-23
異常Q波とST上昇を伴う肥大型心筋症(HCM)6例を, ST上昇のパターンが凸型(ドーム状)を示す3例(A群)と,凹型を示す3例(B群)に分類し,その臨床的意義と両群の差異について検討した. (1) A群はB群
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dcd50fb4d5e4a397a56165c45db9b9f
https://doi.org/10.2169/naika.75.15
https://doi.org/10.2169/naika.75.15
Autor:
Masami Goto, Shinichiro Tadaoka, Masanobu Nakai, Y Ogasawara, Fumihiko Kajiya, O Hiramatsu, Yoshifumi Wada, K Tsujioka, Shuji Matsuoka, Yasuhiro Sha
Publikováno v:
Cardiovascular Research. 22:545-554
To elucidate the role of the haemorheological properties of the perfusate in the coronary circulation, the diastolic pressure-flow relation was studied in nine open chest heart blocked dogs with minimal vasomotor tone when blood with various packed c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f15ba89af1e379ef66528136d4de34a0
https://doi.org/10.1093/cvr/22.8.545
https://doi.org/10.1093/cvr/22.8.545
Autor:
Katsuhiko Tsujioka, Keiichiro Mito, Fumihiko Kajiya, Yasuo Ogasawara, Masanobu Nakai, X L Chen, Masami Goto, Shinichiro Tadaoka, Osamu Hiramatsu, Yoshifumi Wada
Publikováno v:
Circulation Research. 58:476-485
In order to evaluate the functional characteristics of the intramyocardial capacitance vessels during prolonged diastole, we analyzed the response of coronary vein flow after stepwise changes of coronary artery pressure in anesthetized open-chest dog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b76eed98f12a7708686d1c64df833a6
https://doi.org/10.1161/01.res.58.4.476
https://doi.org/10.1161/01.res.58.4.476
Autor:
Go Tomonaga, Shinichiro Tadaoka, Keiichiro Mito, Katsuhiko Tsujioka, Masami Goto, Yoshifumi Wada, Osamu Hiramatsu, Noritake Hoki, Fumihiko Kajiya, Yasuo Ogasawara, Masanobu Nakai
Publikováno v:
Heart and Vessels. 1:16-23
In the present study, characteristics of the phasic flow pattern in the great cardiac vein and the mechanism of such pattern formation were investigated using a laser Doppler velocimeter with an optic fiber probe. The laser Doppler velocimeter allowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3440e0936c7d9de5589d102ef9d53ee
https://doi.org/10.1007/bf02066482
https://doi.org/10.1007/bf02066482