- Intracranial Aneurysms: Treatment and Complications
- Cerebrovascular and Carotid Artery Diseases
- Gastrointestinal disorders and treatments
- Indoor and Outdoor Localization Technologies
- Anatomy and Medical Technology
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Cerebrospinal fluid and hydrocephalus
- Gallbladder and Bile Duct Disorders
- Hydrocarbon exploration and reservoir analysis
- Surgical Simulation and Training
- Cardiac tumors and thrombi
- Congenital Diaphragmatic Hernia Studies
- Traumatic Brain Injury and Neurovascular Disturbances
- Head and Neck Surgical Oncology
- Colorectal and Anal Carcinomas
- Pneumothorax, Barotrauma, Emphysema
- Simulation-Based Education in Healthcare
- Hernia repair and management
- Hypothalamic control of reproductive hormones
- Colorectal Cancer Surgical Treatments
- Marine and coastal plant biology
- Cardiac Structural Anomalies and Repair
- Pancreatic and Hepatic Oncology Research
- Gastric Cancer Management and Outcomes
Kobe University
2009-2024
Nippon Medical School
1994-2022
Nara Medical University
2019-2021
Nara Prefecture General Medical Center
2019-2021
Nippon Medical School Hospital
2021
Neurological Surgery
2021
Ruppin Academic Center
2021
Tokyo University of Science
2018
Kyushu University
2017
Nagoya Medical Center
2016
<h3>BACKGROUND AND PURPOSE:</h3> Blood flow in an intracranial stent cannot be visualized with 3D time-of-flight MR angiography owing to magnetic susceptibility and radiofrequency shielding. As a novel follow-up tool after stent-assisted coil embolization, we applied MRA by using Silent Scan algorithm that contains ultrashort TE combined arterial spin-labeling technique (Silent MRA). The purpose of this study was determine whether could visualize placed the anterior circulation....
Abstract BACKGROUND The exoscope has been reported as a novel neurosurgical instrumentation in clinical practice. OBJECTIVE To investigate the possibility that ORBEYE (OE), instrument excludes eyepiece lenses and allows for microsurgery by observation of 4K3D monitor, could replace microscopes. METHODS We report 22 cases 5 experienced neurosurgeons comparative results training 10 residents. An study with questionnaire survey was conducted on usability. Twelve items including image quality,...
Since the initial discovery of hydrothermal vents in 1977, these ‘extreme’ chemosynthetic systems have been a focus interdisciplinary research. The Okinawa Trough (OT), located semi-enclosed East China Sea between Eurasian continent and Ryukyu arc, hosts more than 20 known vent sites but all within relatively narrow depth range (600–1880 m). Depth is significant factor determining fluid temperature chemistry, as well biological composition. However, due to sites, actual influence here has...
SUMMARY In order to describe features of tectonic deformation in the Indochina Peninsula, Early Jurassic Cretaceous red sandstones were sampled at three localities Shan-Thai and blocks. Stepwise thermal treatment most samples revealed presence characteristic remanent magnetization, which is generally unblocked by 680 °C. This component from Phong Saly (21.6°N, 101.9°E) Borikhanxay (18.5°N, 103.8°E) yield positive fold tests with Late Jurassic–Early directions Dec/Inc = 28.8°/32.1° (ks=...
A 65-year-old woman underwent surgical treatment of an unruptured aneurysm in the left middle cerebral artery. Surgical craniotomy using arachnoid plasty with a fibrin sealant was completed without incident, but abrupt neurological deterioration occurred on 9th postoperative day. Antibiotic given, symptoms did not resolve. Neuroimaging and physical findings indicated allergic reaction rather than infectious process. Therefore, systemic steroids were administered that resulted dramatic...
Gonadotropin-releasing hormone (GnRH) neurons represent the final output in central control of reproduction. γ-Amino butyric acid (GABA), one major regulators GnRH neurons, depolarizes isolated from adult rats via GABAA receptors. The presence receptors has also been demonstrated morphologically. Furthermore, pineal melatonin is involved regulation reproductive function, including timing luteinizing surge. suprachiasmatic nucleus and GABAergic system medial preoptic area are considered as...
Shallow palaeomagnetic inclinations have been frequently reported from the red beds of central and southeast Asia. To trace origin this phenomenon, inclination variation in Asia is examined on lithological to locality scale. Lithological aspect has studied using Early Cretaceous Bailong Cangxi formations Bazhong area (32.1°N, 106.7°E), northern Sichuan Basin. Samples 36 sites, consisting 18 pairs successive sandstones mudstones layers, were collected for purpose a synclinal structure....
In this paper, we present a 3-D ultrasonic measurement technique that uses direct sequence spread spectrum (DSSS) with simultaneous multiple code-division access (CDMA) signals. This can be applied in precise indoor locating systems. By placing three microphones close to one another separated by distances on the order of ultrasound wavelength and imposing constraint transducer two from form triangles space (i.e., triangle constraint) for DSSS trilateration measurement, millimeter positioning...
Recent studies have reported the usefulness of preoperative endoscopic ultrasonography-guided fiducial tattooing (EUS-tattooing) pancreas. However, problems proper procedure, including markers and amounts, not been resolved. The aim present study was to evaluate feasibility EUS-tattooing with a minuscule amount marking solution using new injector.Six consecutive patients who underwent between June 2013 April 2015 at our center were retrospectively analyzed (mean age, 60.7 years; males, 4). A...
In bathrooms, a fall can lead to severe injuries or even drowning. While taking preventive measures against such accidents is crucial, it's equally important swiftly detect and request rescue when they occur. scenarios, knowing the exact location of person in bathroom becomes critical. However, concerns related privacy costs make use cameras lidar impractical. To address these issues, we propose method for estimating 3D within using ultrasound correlation values as input deep neural network....
Melatonin has been implicated in the control of reproductive system, and modulatory actions melatonin on gonadotropin-releasing hormone (GnRH) neurons have assumed to be indirectly mediated through afferent neurons. However, our previous studies demonstrate sexually dimorphic modulation A-type γ-aminobutyric acid (GABA) receptor (GABA<sub>A</sub>R) currents by adult rat GnRH a preferential expression 1a (MT1) male Using immortalized (GT1–7 cells), present study investigated...
The use of an endoscope in exoscopic transcranial neurosurgery for skull-base lesions has not yet been investigated. Thus, this study aimed to investigate the advantages, disadvantages, and safety "simultaneous temporary during surgery" (exo-endoscopic surgery (EES)). Consecutive exo-endoscopic surgeries performed by experienced neurosurgeons assistants were analyzed. Surgical complications time compared with previous consecutive microsurgeries same surgeon. A questionnaire survey was...
Bathrooms can be slippery, increasing the risk of falling. In addition, because people enter bathroom alone, it is difficult to detect accidents immediately when they occur. Therefore, a system required quickly and call for assistance. this study, location posture bather are important attributes. We propose method estimate using ultrasound correlation values as input deep neural network bather's posture. mean absolute error achieved 11.7 cm estimation, accuracy 95.3% estimation in experiment...
Bathroom accidents are common, requiring prevention and detection methods. Advances in computer-aided engineering machine learning enable the creation of digital twins for analysis productivity. A method using ultrasonic depth images human position estimation is proposed personal security. 16-ch microphone array captures reflected waves, generating distance-based converting them into binary segmentation images. In this study, to advocate lack measurement data input, we implement augmented...
Histological diagnosis of upper gastrointestinal submucosal tumors (SMT) is a prerequisite for selecting the proper therapeutic approach. EUS-FNA has improved evaluation SMT. Endoscopic biopsy by mucosal incision (EBM) diagnostic procedure developed Yokohata et al. The principal aim this study was to examine potential EBM, as an alternative more expensive and technically-demanding EUS-FNA, in diagnosing This retrospective included consecutive series 27 patients (15 males 12 females, mean age...