A5035850139- Neural dynamics and brain function
- EEG and Brain-Computer Interfaces
- Intracranial Aneurysms: Treatment and Complications
- Cerebrovascular and Carotid Artery Diseases
- Acute Ischemic Stroke Management
- Neurosurgical Procedures and Complications
- Intracerebral and Subarachnoid Hemorrhage Research
- Neural and Behavioral Psychology Studies
- Vascular Malformations Diagnosis and Treatment
- Epilepsy research and treatment
- Hearing Loss and Rehabilitation
- Meningioma and schwannoma management
- Aortic Disease and Treatment Approaches
- Neuroscience and Music Perception
- Venous Thromboembolism Diagnosis and Management
- Moyamoya disease diagnosis and treatment
- Diagnosis and Treatment of Venous Diseases
- Spinal Hematomas and Complications
- Neuroscience and Neuropharmacology Research
- Traumatic Brain Injury and Neurovascular Disturbances
- Gastrointestinal Tumor Research and Treatment
- Spine and Intervertebral Disc Pathology
- Surgical Simulation and Training
- Advanced Memory and Neural Computing
- Stroke Rehabilitation and Recovery
University of Tokyo Hospital
2024-2025
The University of Tokyo
2022-2024
Toranomon Hospital
2021-2023
Tokyo Metropolitan Tama Medical Center
2019-2021
Gunma Chuo Hospital
2016
Neuroendovascular treatment of cerebral aneurysms is considered a basic procedure for neurosurgeons and interventional neuroradiologists; however, its critical technical nuances, termed "tacit knowledge," are challenging to impart. This study aimed evaluate the efficacy our novel video recording editing method in enhancing trainees' experience. A wearable camera (wearable recording) multiple media sources hybrid operating room (hybrid were used capture procedural details such as audio...
OBJECTIVE Chronic subdural hematoma (CSDH) is a common form of intracranial hemorrhage with recurrence rate 9.2%–26.5% after bur hole surgery. Occasionally patients bilateral CSDH undergo unilateral surgery because the contralateral deemed to be asymptomatic, and in some these may subsequently enlarge, requiring additional The authors investigated factors related growth hematomas. METHODS Ninety-three who underwent at Aizu Chuo Hospital were included retrospective analysis. Findings on...
Abstract Sound frequency and duration are essential auditory components. The brain perceives deviations from the preceding sound context as prediction errors, allowing efficient reactions to environment. Additionally, error response change is reduced in initial stages of psychotic disorders. To compare spatiotemporal profiles responses we conducted a human electrocorticography study with special attention high gamma power 13 participants who completed both oddball tasks. Remarkable...
Common carotid artery occlusion (CCAO) is rare. Symptomatic lesions are resistant to medical treatment and revascularization often required, but there no consensus on the of CCAO. In this paper, two cases symptomatic CCAO treated by endarterectomy (CEA) with L-shaped ministernotomy, in which extended beginning part CCA, reported.Case 1 involved a 74-year-old man who presented transient left limb numbness an abnormal right visual field. Cerebrovascular angiography showed that CCA was occluded...
Gamma oscillation regularity (GOR) indicates the synchronization of inhibitory interneurons, while reactivity cortico-cortical evoked potentials (CCEPs) is supposed to reflect local cortical excitability. Under assumption that early response CCEP near stimulation site also excitatory activity primarily mediated by pyramidal cells, we aimed visualize and activities using GOR in combination use them predict epileptogenic zone (EZ) mesial temporal lobe epilepsy (MTLE). In five patients who...
Neurofeedback (NF) shows promise in enhancing memory, but its application to the medial temporal lobe (MTL) still needs be studied. Therefore, we aimed develop an NF system for memory function of MTL and examine neural activity changes, task score changes through training. We created a using intracranial electrodes acquire visualise during encoding. Twenty trials tug-of-war game per session were employed designed control bidirectionally (Up/Down condition). training was conducted with three...
Neurofeedback (NF) shows promise in enhancing memory, but its application to the medial temporal lobe (MTL) still needs be studied. Therefore, we aimed develop an NF system for memory function of MTL and examine neural activity changes, task score changes through training. We created a using intracranial electrodes acquire visualise during encoding. Twenty trials tug-of-war game per session were employed designed control bidirectionally (Up/Down condition). training was conducted with three...
Abstract Removal of the mesial temporal lobe (MTL) is an established surgical procedure that leads to seizure freedom in patients with intractable MTL epilepsy; however, it carries potential risk memory damage. Neurofeedback (NF), which regulates brain function by converting activity into perceptible information and providing feedback, has attracted considerable attention recent years for its as a novel complementary treatment many neurological disorders. However, no research attempted...
Auditory sensory processing is assumed to occur in a hierarchical structure including the primary auditory cortex (A1), superior temporal gyrus, and frontal areas. These areas are postulated generate predictions for incoming stimuli, creating an internal model of surrounding environment. Previous studies on mismatch negativity have indicated involvement gyrus this processing, whereas reports been mixed regarding contribution cortex. We designed novel paradigm, "cascade roving" which...
Decoding the inner representation of a word meaning from human cortical activity is substantial challenge in development speech brain-machine interfaces (BMIs). The semantic aspect novel target decoding that may enable versatile communication platforms for individuals with impaired ability; however, there paucity electrocorticography studies this field. We decoded single-trial during an imageability-based property identification task required participants to discriminate between abstract and...
Abstract Removal of the mesial temporal lobe (MTL) is an established surgical procedure that leads to seizure freedom in patients with intractable MTL epilepsy; however, it carries potential risk memory damage. Neurofeedback (NF), which regulates brain function by converting activity into perceptible information and providing feedback, has attracted considerable attention recent years for its as a novel complementary treatment many neurological disorders. However, no research attempted...
要旨：急性内頸動脈閉塞症のうち，内頸動脈終末部以遠が側副血行で灌流される急性内頸動脈非終末部閉塞症（non-T ICA occlusion）に関して，慢性期に自然再開通を確認した自験例5 例について報告する．発症時は5 例とも軽症であり，閉塞側に血栓溶解療法や急性期血行再建術は行わず，内科治療のみを選択した．再開通は閉塞後39～859 日（中央値69 日）に確認した．2 例で再開通後に動脈解離を疑う所見を認めた．4 例は閉塞から自然再開通まで再発なく経過したが，1 例で閉塞側の側脳室後角周囲に無症候性脳梗塞を生じた．再開通後に内頸動脈起始部に高度狭窄が残存した2 例に対しCEA を施行した．急性内頸動脈閉塞症は慢性期に自然再開通することがあり，軽症の急性non-T occlusion であった場合でも，再開通に関連して虚血性脳卒中の再発を来したり高度狭窄が残存する例が存在し得るため，慎重な経過観察が望ましいと考えられた．
要旨:両側主幹動脈塞栓症は全虚血性脳卒中の0.34%に生じたとの報告があり,治療例に関する報告は少数で予後も不良である.両側内頸動脈系塞栓症に対し機械的血栓回収療法が奏功した症例を報告する.心房細動未治療の69歳男性,意識障害,右共同偏視,左上下肢麻痺,失語で救急搬送となった.来院時,JCS 20,NIHSS 28点.ASPECTS-DWIは右が7点,左が10点であった.MRAでは後交通動脈分岐遠位の右内頸動脈,左中大脳動脈閉塞を認めた.rt-PA静注し両側一期的血栓回収術を施行.ASPECTSがより低値で症状が重い右側から治療した.右側mTICI 3,左側2aの再開通を得た.術翌日MRIで脳梗塞の進行を認めずNIHSSは1点に改善,mRS 0で自宅退院した.両側内頸動脈系塞栓症は保存的加療の予後が悪いが,症例によって治療順序(左右)の選択を適切に行い,迅速に血管内治療を遂行すれば良好な予後が見込める可能性がある.
Neurofeedback (NF) shows promise in enhancing memory, but its application to the medial temporal lobe (MTL) still needs be studied. Therefore, we aimed develop an NF system for memory function of MTL and examine neural activity changes task score through training. We created a using intracranial electrodes acquire visualise during encoding. Twenty trials tug-of-war game per session were employed designed control bidirectionally (Up/Down condition). training was conducted with three patients...
A3-A3 side-to-side bypass (A3-A3 bypass) is commonly used for revascularization of the anterior cerebral artery territory; however, it indicated in few patients. This study investigated indications based on our clinical experience and a literature review.
BACKGROUND Gastrointestinal stromal tumors (GISTs) are common subepithelial that rarely metastasize to the intracranial space. Because standard treatment for metastatic GISTs has not been established, multimodal therapies needed, especially in case of skull base metastasis. However, its outcome always favorable. The authors report longest known surviving metastasis GIST treated with imatinib only. OBSERVATIONS A 52-year-old male a history presented left facial swelling and numbness....
Endoscopic evacuation of acute subdural hematoma (ASDH) is considered useful for elderly patients because its minimal invasiveness, but there are concerns about insufficient hemostasis during surgery. The purpose this case series study to examine whether the spot sign, a point contrast agent leakage on computed tomography angiography (CTA), would be helpful sufficient endoscopic-assisted small craniotomy subjects were 11 consecutive ASDH who underwent surgery with endoscopic assistance...