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  1. Article

    Open Access

    Analytical Model for Non-linear \(\user2{M - }\,\,{\varvec{\theta}}\) Relationships of Dowel-Type Timber Connections Exposed to Fire

    Recent experimental evidence has shown that wood–steel–wood dowel-type connections exhibit a semi-rigid behaviour even after 90 min of fire exposure. Because a semi-rigid behaviour influences the bending momen...

    Yukito Nakayama, Takayuki Kikuchi, Marina Totsuka, Takeo Hirashima in Fire Technology (2024)

  2. Article

    Open Access

    Development of extended pharmacokinetic models for propofol based on measured blood and brain concentrations

    Propofol’s pharmacokinetics have been extensively studied using human blood samples and applied to target-controlled infusion systems; however, information on its concentration in the brain remains scarce. The...

    Masayoshi Kawata, Atsushi Yonezawa, Yohei Mineharu, Kotaro Itohara in Scientific Reports (2024)

  3. No Access

    Article

    Efficacy of uterine artery embolization (UAE) for uterine fibroids according to FIGO classification: a single-center experience

    This study aims to retrospectively evaluate the outcomes of uterine artery embolization (UAE) for uterine fibroids (UFs), specifically submucosal UFs, according to the International Federation of Gynecology an...

    Hiroe Ito, Motoki Nakai, Daisuke Yunaiyama in Japanese Journal of Radiology (2024)

  4. Article

    Open Access

    Pre-stroke physical activity is associated with post-stroke physical activity and sedentary behavior in the acute phase

    This study investigated the link between pre-stroke and acute-stage physical activity (PA) and sedentary behavior. Forty individuals with stroke (aged 73.6 ± 8.9 years) were enrolled. Post-stroke activity, inc...

    Hiroki Tanaka, Gakuto Kitamura, Mayu Tamura, Manabu Nankaku in Scientific Reports (2023)

  5. Article

    Open Access

    Seizure control by adding on other anti-seizure medication on seizure during levetiracetam administration in patients with glioma-related epilepsy

    Epilepsy is a major symptom in patients with glioma. Levetiracetam (LEV) is recognized as a first-line treatment for glioma-related epilepsy. Increasing the LEV dose is allowed into patients with seizure occur...

    Etsuko Yamamoto Hattori, Yoshiki Arakawa, Yohei Mineharu, Keiko Furukawa in BMC Cancer (2023)

  6. No Access

    Article

    Intraoperative cone-beam CT with metal artifact reduction for assessment of the electrode position and the intracranial structures during deep brain stimulation procedure

    In deep brain stimulation (DBS) for Parkinson’s disease (PD), the clinical outcome largely depends on the appropriate position of the electrode implanted in the targeted structure. In intraoperative cone-beam ...

    Toshinari Kawasaki, Takayuki Kikuchi, Katharina Otani, Yuto Mitsuno in Acta Neurochirurgica (2022)

  7. Article

    Open Access

    A multicenter prospective registry of Borden type I dural arteriovenous fistula: results of a 3-year follow-up study

    Although intracranial dural arteriovenous fistula (DAVF) without retrograde leptomeningeal venous drainage (Borden type I) is reported to have a benign nature, no study has prospectively determined its clinica...

    Hidehisa Nishi, Hiroyuki Ikeda, Akira Ishii, Takayuki Kikuchi in Neuroradiology (2022)

  8. Article

    Open Access

    Preoperative obliteration of choroidal arteries in the treatment of large hypervascular tumors in the lateral ventricle

    Removal of large hypervascular tumors in the lateral ventricle still poses a surgical challenge. These tumors are usually fed from choroidal arteries, and vascular control is typically performed late during th...

    Yukihiro Yamao, Kazumichi Yoshida, Akira Ishii, Masahiro Tanji in BMC Neurology (2021)

  9. Article

    Open Access

    Changes in treatment strategy over time for arteriovenous malformation in a Japanese high-volume center

    Despite rapid developments in devices used to treat arteriovenous malformation (AVM), a randomised trial of Unruptured Brain Arteriovenous malformations published in 2014 recommended conservative treatment for...

    Katsuya Komatsu, Yasushi Takagi, Akira Ishii, Takayuki Kikuchi in BMC Neurology (2020)

  10. No Access

    Article

    Visualization of carotid vessel wall and atherosclerotic plaque: T1-SPACE vs. compressed sensing T1-SPACE

    To compare visualization of carotid plaques and vessel walls between 3D T1-fast spin echo imaging with conventional SPACE (T1-SPACE) and with a prototype compressed sensing T1-SPACE (CS-T1-SPACE)

    Sachi Okuchi, Yasutaka Fushimi, Tomohisa Okada, Akira Yamamoto in European Radiology (2019)

  11. No Access

    Article

    Restoration of periventricular vasculature after direct bypass for moyamoya disease: intra-individual comparison

    While periventricular anastomosis, a unique abnormal vasculature in moyamoya disease, has been studied in relation to intracranial hemorrhage, no study has addressed its change after bypass surgery. The author...

    Akinori Miyakoshi, Takeshi Funaki, Jun C Takahashi, Yasushi Takagi in Acta Neurochirurgica (2019)

  12. No Access

    Article

    Ruptured intranidal aneurysm of an arteriovenous malformation diagnosed by delay alternating with nutation for tailored excitation (DANTE)–prepared contrast-enhanced magnetic resonance imaging

    This case report describes the usefulness of delay alternating with nutation for tailored excitation (DANTE)–prepared, contrast-enhanced magnetic resonance imaging (CE-MRI) for detecting the rupture site of an...

    Katsuya Komatsu, Yasushi Takagi, Akira Ishii, Takayuki Kikuchi in Acta Neurochirurgica (2018)

  13. No Access

    Article

    Reversible striatal hypermetabolism in chorea associated with moyamoya disease: a report of two cases

    The pathophysiological mechanism of chorea as a presentation of pediatric moyamoya disease remains unknown, although ischemia is suspected as a likely cause. The authors describe two cases of pediatric moyamoy...

    Yoshito Sugita, Takeshi Funaki, Jun C. Takahashi, Yasushi Takagi in Child's Nervous System (2016)

  14. Article

    Open Access

    Visualization of heterogeneity and regional grading of gliomas by multiple features using magnetic resonance-based clustered images

    Preoperative glioma grading is important for therapeutic strategies and influences prognosis. Intratumoral heterogeneity can cause an underestimation of grading because of the sampling error in biopsies. We de...

    Rika Inano, Naoya Oishi, Takeharu Kunieda, Yoshiki Arakawa in Scientific Reports (2016)

  15. Article

    Open Access

    Characteristics of HAM/TSP after kidney transplantation from HTLV-1 positive living donors

    Miyuna Kimura, Junji Yamauchi, Hideki Taisho, Tomoo Sato, Naoko Yagishita in Retrovirology (2015)

  16. Article

    Open Access

    Evaluation of clinical outcome measures for HAM/TSP

    Takayuki Kikuchi, Aika Sawabe, Yui Negishi, Airi Noda, Yuji Hirai in Retrovirology (2015)

  17. Article

    Open Access

    Patient satisfaction survey for HAM-net registrants

    Kentaro Sato, Takayuki Kikuchi, Miyuna Kimura, Midori Komita in Retrovirology (2015)

  18. No Access

    Article

    Incidence of late cerebrovascular events after direct bypass among children with moyamoya disease: a descriptive longitudinal study at a single center

    The potential for late cerebrovascular events following surgical revascularization presents a challenge in the treatment of pediatric moyamoya disease. Limited information is available on the incidence of such...

    Takeshi Funaki, Jun C. Takahashi, Yasushi Takagi, Kazumichi Yoshida in Acta Neurochirurgica (2014)

  19. No Access

    Chapter and Conference Paper

    Microchamber Array for Immunosensor Applications

    This paper describes the reduction of the size of enzyme immunoassay (EIA) utilizing microchemical reaction in a microchamber array. The microchamber array was fabricated by micromachining of a silicon chip. G...

    Yuji Murakami, Takayuki Kikuchi, Masahiro Yanase in Micro Total Analysis Systems 2000 (2000)