Zobrazeno 1 - 10
of 232
pro vyhledávání: '"Koichi Akiyama"'
Autor:
Shoko Yamochi, Tomomi Yamada, Yurie Obata, Kazuki Sudo, Mao Kinoshita, Koichi Akiyama, Teiji Sawa
Publikováno v:
PeerJ, Vol 12, p e18518 (2024)
Background Mode decomposition methods are used to extract the characteristic intrinsic mode function (IMF) from various multidimensional time series signals. We analyzed an electroencephalogram (EEG) dataset for sevoflurane anesthesia using two wavel
Externí odkaz:
https://doaj.org/article/a1bcb0f6b5364202bf3e0f888a4fca12
Publikováno v:
Sensors, Vol 24, Iss 17, p 5749 (2024)
Frequency analysis via electroencephalography (EEG) during general anesthesia is used to develop techniques for measuring anesthesia depth. Variational mode decomposition (VMD) enables mathematical optimization methods to decompose EEG signals into n
Externí odkaz:
https://doaj.org/article/6129df0d4379456a92d474695bc82715
Publikováno v:
BMC Anesthesiology, Vol 23, Iss 1, Pp 1-11 (2023)
Abstract Background Anesthesiologists are required to maintain an optimal depth of anesthesia during general anesthesia, and several electroencephalogram (EEG) processing methods have been developed and approved for clinical use to evaluate anesthesi
Externí odkaz:
https://doaj.org/article/d33d8cd9c3c346cf8d1951a278af7daf
Autor:
Koichi Akiyama, Paolo C. Colombo, Eric J. Stöhr, Ruiping Ji, Isaac Y. Wu, Keiichi Itatani, Shohei Miyazaki, Teruyasu Nishino, Naotoshi Nakamura, Yasufumi Nakajima, Barry J McDonnell, Koji Takeda, Melana Yuzefpolskaya, Hiroo Takayama
Publikováno v:
Frontiers in Cardiovascular Medicine, Vol 10 (2023)
ObjectivesRight ventricular (RV) failure remains a major concern in heart failure (HF) patients undergoing left ventricular assist device (LVAD) implantation. We aimed to measure the kinetic energy of blood in the RV outflow tract (KE-RVOT) – a new
Externí odkaz:
https://doaj.org/article/fe7fbf107bd44847921ff75425bb404f
Autor:
Yosuke Tachibana, Isaac Wu, Yurie Obata, Kyoko Shiozaki, Tatsuya Kawamoto, Shunsuke Sato, Kyozo Inoue, Takashi Azami, Koichi Akiyama
Publikováno v:
Annals of Cardiac Anaesthesia, Vol 26, Iss 1, Pp 110-111 (2023)
Externí odkaz:
https://doaj.org/article/15fba14820ec482dbc3d2fad84f5afb6
Autor:
Atsushi Kainuma, Koichi Akiyama, Yoshifumi Naito, Kazuma Hayase, Hisayuki Hongu, Keiichi Itatani, Masaaki Yamagishi, Teiji Sawa
Publikováno v:
JA Clinical Reports, Vol 6, Iss 1, Pp 1-6 (2020)
Abstract Background Echocardiography vector flow mapping can assess dynamic flow to treat congenital heart diseases. We evaluated intracardiac flow, energy loss, left ventricular output kinetic energy, and energetic performance index using vector flo
Externí odkaz:
https://doaj.org/article/5a3d17c3a48b49d8a268dfeb13ba0883
Autor:
Atsushi Kainuma, Keiichi Itatani, Koichi Akiyama, Yoshifumi Naito, Maki Ishii, Masaru Shimizu, Junya Ohara, Naotoshi Nakamura, Yasufumi Nakajima, Satoshi Numata, Hitoshi Yaku, Teiji Sawa
Publikováno v:
Frontiers in Surgery, Vol 9 (2022)
BackgroundThere is currently no subjective, definitive evaluation method for therapeutic indication other than symptoms in aortic regurgitation. Energy loss, a novel parameter of cardiac workload, can be visualized and quantified using echocardiograp
Externí odkaz:
https://doaj.org/article/0a531b04a00249a29f6af96f6f5b25bf
Autor:
Dewi Noor Hidayati, Eko Agus Srihanto, Tri Untari, Michael Haryadi Wibowo, Koichi Akiyama, Widya Asmara
Publikováno v:
Indonesian Journal of Biotechnology, Vol 24, Iss 1, Pp 34-42 (2019)
Considering the increasing incidence of infectious bovine rhinotracheitis (IBR) in Indonesia, it was necessary to conduct a more in-depth study of bovine herpesvirus-1 (BHV-1) as the causative agent of IBR disease. Previous research reports indicate
Externí odkaz:
https://doaj.org/article/e0a88a78fdc34cff9b3abeea6cfed837
Publikováno v:
Frontiers in Pediatrics, Vol 9 (2021)
Difficult airway management (DAM) in neonates and infants requires anesthesiologists and critical care clinicians to respond rapidly with appropriate evaluation of specific situations. Therefore, organizing information regarding DAM devices and devic
Externí odkaz:
https://doaj.org/article/91ae6977e97e4fb0b357d793a127cbf1
Autor:
Kazuma Hayase, Atsushi Kainuma, Koichi Akiyama, Mao Kinoshita, Masayuki Shibasaki, Teiji Sawa
Publikováno v:
Frontiers in Physiology, Vol 12 (2021)
The Poincaré plot obtained from electroencephalography (EEG) has been used to evaluate the depth of anesthesia. A standalone EEG Analyzer application was developed; raw EEG signals obtained from a bispectral index (BIS) monitor were analyzed using a
Externí odkaz:
https://doaj.org/article/2a68c426c0324e33bb97e83fea23489e