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K. Tokunaga · SciRah

Researcher profile · Semantic Scholar

K. Tokunaga

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K. Tokunaga — researcher profile on SciRah

h-index: 23
Works: 144
Citations: 1,639

Most-cited papers

Epidemiology of Dural Arteriovenous Fistula in Japan: Analysis of Japanese Registry of Neuroendovascular Therapy (JR-NET2)
M. Hiramatsu, K. Sugiu, T. Hishikawa, J. Haruma +4 more
2013Neurologia medico-chirurgica91 citations Open access
Semantic Scholar
Assessment of the difference in posterior circulation involvement between pediatric and adult patients with moyamoya disease.
T. Hishikawa, K. Tokunaga, K. Sugiu, I. Date
2013Journal of Neurosurgery85 citations
Semantic Scholar
Endovascular Treatment for Bow Hunter's Syndrome: Case Report
K. Sugiu, T. Agari, K. Tokunaga, A. Nishida +1 more
2009Neurochirurgia57 citations
Semantic Scholar
Risk of rupture of unruptured cerebral aneurysms in elderly patients
T. Hishikawa, I. Date, K. Tokunaga, S. Tominari +9 more
2015Neurology48 citations Open access
Semantic Scholar
Continuous intraventricular infusion of erythropoietin exerts neuroprotective/rescue effects upon Parkinson's disease model of rats with enhanced neurogenesis.
Tomohito Kadota, Tetsuro Shingo, T. Yasuhara, N. Tajiri +8 more
2009Brain Research48 citations
Semantic Scholar
EFFECTS OF DEFEROXAMINE‐ACTIVATED HYPOXIA‐INDUCIBLE FACTOR‐1 ON THE BRAINSTEM AFTER SUBARACHNOID HEMORRHAGE IN RATS
T. Hishikawa, S. Ono, Tomoyuki Ogawa, K. Tokunaga +2 more
2008Neurosurgery41 citations
Semantic Scholar
Antivasospastic and antiinflammatory effects of caspase inhibitor in experimental subarachnoid hemorrhage.
K. Iseda, S. Ono, K. Onoda, M. Satoh +6 more
2007Journal of Neurosurgery39 citations
Semantic Scholar
Mannitol enhances therapeutic effects of intra-arterial transplantation of mesenchymal stem cells into the brain after traumatic brain injury.
Y. Okuma, Feifei Wang, A. Toyoshima, M. Kameda +8 more
2013Neuroscience Letters34 citations
Semantic Scholar
Dural Arteriovenous Fistula
M. Nakagawa, K. Sugiu, K. Tokunaga
200929 citations
Semantic Scholar
Overheated and melted intracranial pressure transducer as cause of thermal brain injury during magnetic resonance imaging: case report.
Reiichiro Tanaka, T. Yumoto, Naoki Shiba, M. Okawa +5 more
2012Journal of Neurosurgery25 citations
Semantic Scholar
Computational Fluid Dynamics of Carotid Arteries After Carotid Endarterectomy or Carotid Artery Stenting Based on Postoperative Patient-Specific Computed Tomography Angiography and Ultrasound Flow Data
H. Hayase, K. Tokunaga, Toshio Nakayama, K. Sugiu +6 more
2011Neurosurgery25 citations
Semantic Scholar
Clinical and radiographic features of moyamoya disease in patients with both cerebral ischaemia and haemorrhage
T. Hishikawa, K. Tokunaga, K. Sugiu, I. Date
2013British Journal of Neurosurgery24 citations
Semantic Scholar
Long-term outcomes in adult patients with ischemic-type moyamoya disease involving posterior circulation
T. Hishikawa, K. Tokunaga, K. Sugiu, I. Date
2014Acta Neurochirurgica23 citations
Semantic Scholar
Trends in Incidence of Intracranial and Spinal Arteriovenous Shunts
S. Murai, M. Hiramatsu, Etsuji Suzuki, R. Ishibashi +15 more
2021Stroke20 citations Open access
Semantic Scholar
Combined gene therapy with vascular endothelial growth factor plus apelin in a chronic cerebral hypoperfusion model in rats.
M. Hiramatsu, T. Hishikawa, K. Tokunaga, H. Kidoya +8 more
2017Journal of Neurosurgery19 citations Open access
Semantic Scholar
Nationwide survey of the nature and risk factors of complications in embolization of meningiomas and other intracranial tumors: Japanese Registry of NeuroEndovascular Therapy 2 (JR-NET2)
T. Hishikawa, K. Sugiu, M. Hiramatsu, J. Haruma +3 more
2014Neuroradiology19 citations
Semantic Scholar
Fenestration of the supraclinoid internal carotid artery with associated aneurysm.
K. Onoda, S. Ono, K. Tokunaga, K. Sugiu +1 more
2008Neurologia medico-chirurgica19 citations Open access
Semantic Scholar
Combined use of TruFill DCS detachable coil system and Guglielmi detachable coil for embolization of meningioma fed by branches of the cavernous internal carotid artery.
N. Kusaka, T. Tamiya, K. Sugiu, K. Tokunaga +6 more
2007Neurologia medico-chirurgica16 citations Open access
Semantic Scholar
Cerebral Infarction Arising from Takotsubo Cardiomyopathy: Case Report and Literature Review
Yoshihiro Otani, K. Tokunaga, S. Kawauchi, S. Inoue +6 more
2016NMC Case Report Journal15 citations Open access
Semantic Scholar
TRIPLE‐CATHETER TECHNIQUE IN THE TRANSVENOUS COIL EMBOLIZATION OF AN ISOLATED SINUS DURAL ARTERIOVENOUS FISTULA
K. Sugiu, K. Tokunaga, A. Nishida, W. Sasahara +4 more
2007Neurosurgery15 citations
Semantic Scholar
Differentiation between intradural and extradural locations of juxta-dural ring aneurysms by using contrast-enhanced 3-dimensional time-of-flight magnetic resonance angiography.
Toshiyuki Tsuboi, K. Tokunaga, Tetsuro Shingo, T. Itoh +3 more
2007Surgical Neurology15 citations
Semantic Scholar
Incidence and clinical characteristics of spinal arteriovenous shunts: hospital-based surveillance in Okayama, Japan.
M. Hiramatsu, R. Ishibashi, Etsuji Suzuki, Y. Miyazaki +15 more
2021Journal of Neurosurgery : Spine14 citations Open access
Semantic Scholar
Parkinsonism Related to Brain Tumors: A Case Report and Review of the literature
T. Yasuhara, T. Agari, H. Kambara, Tomotsugu Ichikawa +5 more
200914 citations Open access
Semantic Scholar
Fatal outcomes of pediatric patients with moyamoya disease associated with pulmonary arterial hypertension. Report of two cases.
K. Tokunaga, T. Hishikawa, K. Sugiu, I. Date
2013Clinical neurology and neurosurgery (Dutch-Flemish ed. Print)12 citations
Semantic Scholar
Rebleeding from a vertebral artery dissecting aneurysm after endovascular internal trapping: adverse effect of intrathecal urokinase injection or incomplete occlusion?-case report-.
K. Sugiu, K. Tokunaga, S. Ono, A. Nishida +1 more
2009Neurologia medico-chirurgica12 citations Open access
Semantic Scholar
Effectiveness of intraoperative near-infrared indocyanine green videoangiography in a case with recurrent spinal perimedullary arteriovenous fistula.
Y. Miyoshi, T. Yasuhara, A. Nishida, K. Tokunaga +2 more
2011Clinical neurology and neurosurgery (Dutch-Flemish ed. Print)11 citations
Semantic Scholar
Packing efficacy of hydrocoil embolic system: in vitro study using ruptured aneurysm model
Kyoichi Watanabe, K. Sugiu, K. Tokunaga, W. Sasahara +2 more
2007Neurosurgical review11 citations
Semantic Scholar
A patient develops transient unique cerebral and cerebellar lesions after unruptured aneurysm coiling
K. Deguchi, Yuko Kawahara, S. Deguchi, Nobutoshi Morimoto +7 more
2015BMC Neurology10 citations Open access
Semantic Scholar
Cerebral Vasospasm in Patients over 80 Years Treated by Coil Embolization for Ruptured Cerebral Aneurysms
T. Hishikawa, Yuji Takasugi, Tomohisa Shimizu, J. Haruma +4 more
2014BioMed Research International10 citations Open access
Semantic Scholar
Endovascular coil embolization of a ruptured distal anterior choroidal artery aneurysm associated with ipsilateral middle cerebral artery occlusion--case report.
A. Nishida, K. Tokunaga, T. Hishikawa, K. Sugiu +1 more
2011Neurologia medico-chirurgica10 citations Open access
Semantic Scholar
Posterior reversible encephalopathy syndrome
T. Yasuhara, K. Tokunaga, T. Hishikawa, S. Ono +3 more
2011Journal of clinical neuroscience10 citations
Semantic Scholar
SIGNIFICANT DIFFERENCES IN THE POSTOPERATIVE MORPHOLOGICAL AND HEMODYNAMIC CONDITIONS OF CAROTID ARTERIES OF PATIENTS UNDERGOING STENTING OR ENDARTERECTOMY WITH PATCH ANGIOPLASTY
K. Tokunaga, K. Sugiu, H. Hayase, A. Nishida +1 more
2009Neurosurgery10 citations
Semantic Scholar
Multimodality Therapy for Large and Giant Intracavernous Internal Carotid Artery Aneurysms
I. Date, K. Tokunaga, K. Sugiu
200810 citations Open access
Semantic Scholar
[Clinical features and management of cavernous and venous angiomas in the head].
K. Tokunaga, I. Date
2011Brain and nerve = Shinkei kenkyu no shinpo9 citations
Semantic Scholar
Optimal dose of plasmid vascular endothelial growth factor for enhancement of angiogenesis in the rat brain ischemia model.
A. Katsumata, K. Sugiu, K. Tokunaga, N. Kusaka +6 more
2010Neurologia medico-chirurgica8 citations Open access
Semantic Scholar
Novel Protein Transduction Method by Using 11R: An Effective New Drug Delivery System for the Treatment of Cerebrovascular Diseases
Tomoyuki Ogawa, S. Ono, Tomotsugu Ichikawa, S. Arimitsu +6 more
2007Stroke8 citations Open access
Semantic Scholar
[Case of a ruptured vertebral artery dissecting aneurysm recanalized after internal trapping].
Y. Kikuchi, K. Sugiu, K. Tokunaga, A. Nishida +2 more
2007No shinkei geka. Neurological surgery8 citations
Semantic Scholar
Combined Transarterial and Transvenous Approach for Curative Obliteration of Klippel-Trenaunay-Weber Syndrome-Associated Spinal Perimedullary Arteriovenous Fistulas
K. Tokunaga, T. Hishikawa, K. Sugiu, Isao Date
2015Clinical Neuroradiology6 citations
Semantic Scholar
Percutaneous Balloon Angioplasty for Acute Occlusion of Intracranial Arteries
K. Tokunaga, K. Sugiu, K. Yoshino, Y. Terai +5 more
2010Neurosurgery6 citations
Semantic Scholar
Protein transduction method for cerebrovascular disorders.
Tomoyuki Ogawa, S. Ono, Tomotsugu Ichikawa, S. Arimitsu +6 more
2009Acta Medica Okayama6 citations
Semantic Scholar
[Endovascular treatment of adult pial arteriovenous fistula].
Hisakazu Itami, K. Sugiu, K. Tokunaga, S. Ono +2 more
2007No shinkei geka. Neurological surgery6 citations
Semantic Scholar
4-Hydroxyl-2-Nonenal Localized Expression Pattern in Retrieved Clots is Associated with Large Artery Atherosclerosis in Stroke Patients.
Yosuke Osakada, T. Yamashita, R. Morihara, Namiko Matsumoto +24 more
2021Journal of Stroke & Cerebrovascular Diseases5 citations
Semantic Scholar
Pathophysiology of moyamoya disease
T. Hishikawa, M. Hiramatsu, K. Tokunaga, K. Sugiu +1 more
20155 citations Open access
Semantic Scholar
Influence of hospital capabilities and prehospital time on outcomes of thrombectomy for stroke in Japan from 2013 to 2016
Ai Kurogi, D. Onozuka, A. Hagihara, K. Nishimura +496 more
2022Scientific Reports4 citations Open access
Semantic Scholar
Clinical Analysis of Fever, Headache, and Gastrointestinal Symptoms after Endosaccular Coil Embolization in Patients with Unruptured Cerebral Aneurysms— A Study of “Post Coiling Syndrome”
Y. Okuma, K. Sugiu, K. Tokunaga, A. Nishida +4 more
20164 citations Open access
Semantic Scholar
Usefulness of 3‐Dimensional CT Angiograms Obtained by 64‐Section Multidetector Row CT Scanner for Dural Arteriovenous Fistula
M. Nakagawa, K. Sugiu, K. Tokunaga, Kohei Tsuda +3 more
2009Journal of Neuroimaging4 citations
Semantic Scholar
Continuous evaluation of regional oxygen saturation in cerebral vasospasm after subarachnoid haemorrhage using INVOS®, portable near infrared spectrography
S. Ono, S. Arimitsu, T. Ogawa, Hiroaki Manabe +4 more
20084 citations
Semantic Scholar
Parameter Study of Hemodynamics Simulation at Internal Carotid Stenosis
Toshio Nakayama, H. Hayase, K. Tokunaga, M. Ohta
20084 citations Open access
Semantic Scholar
[Delayed hearing loss after microvascular decompression for hemifacial spasm: report of two cases].
K. Onoda, S. Ono, Y. Miyoshi, K. Tokunaga +1 more
2006No shinkei geka. Neurological surgery4 citations
Semantic Scholar
Practical Use of a Communication Application on Mobile Devices by Our Stroke Team
K. Tokunaga, S. Inoue, Yasuki Suruga, T. Nagase +6 more
2020Journal of Neuroendovascular Therapy3 citations Open access
Semantic Scholar

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K. Sugiu×38
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K. Sugiu — researcher profile on SciRah
T. Hishikawa×19
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S. Ono×14
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A. Nishida — researcher profile on SciRah

M. Hiramatsu×8

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M. Hiramatsu — researcher profile on SciRah

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K. Onoda — researcher profile on SciRah

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J. Haruma — researcher profile on SciRah

Kyoichi Watanabe×6

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Tomotsugu Ichikawa×5

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Tomotsugu Ichikawa — researcher profile on SciRah

Yuji Takasugi×5

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