A5103232945- Optical Network Technologies
- Medical Imaging Techniques and Applications
- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Semiconductor Lasers and Optical Devices
- Advanced Optical Network Technologies
- Gastric Cancer Management and Outcomes
- Advanced X-ray and CT Imaging
- Tribology and Lubrication Engineering
- Adhesion, Friction, and Surface Interactions
- Esophageal Cancer Research and Treatment
- Lung Cancer Diagnosis and Treatment
- Gastrointestinal Tumor Research and Treatment
- Radiomics and Machine Learning in Medical Imaging
- Medical Imaging and Pathology Studies
- Metastasis and carcinoma case studies
- Gear and Bearing Dynamics Analysis
- Breast Cancer Treatment Studies
- Radiation Detection and Scintillator Technologies
- Cardiac Imaging and Diagnostics
- Radiopharmaceutical Chemistry and Applications
- Particle Detector Development and Performance
- Alzheimer's disease research and treatments
- Semiconductor Quantum Structures and Devices
- Dementia and Cognitive Impairment Research
Tokai University
2024
Tsukuba International University
2022
Keio University
2012-2021
Keio University Hospital
2008-2021
Tokyo Medical Center
2018
National Hospital Organization
2018
NTT (Japan)
2004-2017
University Radiology
2008-2017
Nagoya University
2012-2013
Kanzaki (Japan)
1982-2010
Abstract Tau aggregates represent a key pathologic feature of Alzheimer’s disease and other neurodegenerative diseases. Recently, PET probes have been developed for in vivo detection tau accumulation; however, they are limited because off-target binding reduced ability to detect non-Alzheimer’s tauopathies. The novel tracer, [18F]PI-2620, has high affinity specificity aggregated tau; therefore, it was hypothesized desirable properties the visualization accumulation To assess [18F]PI-2620...
Whole-body positron emission tomography (PET) with 18F-fluorodeoxyglucose (FDG) is a diagnostic modality that can noninvasively survey the entire body and sensitively detect various cancers. In this study, we examined potential application of whole-body PET for cancer screening in asymptomatic individuals. was performed conjunction conventional examinations including physical examination, laboratory ultrasonography chest computed tomography. Between September 1994 March 1999, 3165...
In Brief Background: Radio-guided detection of sentinel lymph nodes (SLN) has been used to predict regional node metastasis in patients with melanoma and breast cancer. However, the validity SLN hypothesis is still controversial for esophageal The aim this study evaluate feasibility accuracy radio-guided mapping Methods: Seventy-five consecutive who were diagnosed preoperatively T1N0M0 or T2N0M0 primary cancer enrolled. Endoscopic injection technetium-99m tin colloid was performed before...
Although quantitative analysis using standardized uptake value (SUV) becomes realistic in clinical single-photon emission computed tomography/computed tomography (SPECT/CT) imaging, reconstruction parameter settings can deliver different results among SPECT/CT systems. This study aims to propose a use of the digital reference object (DRO), which is National Electrical Manufacturers Association (NEMA) phantom-like developed by Quantitative Imaging Biomarker Alliance (QIBA)...
The behavior of liquid droplets in O/W type emulsions flowing between a flat glass plate and metal roller was observed by means microscope. the introduced into EHL film found to be related streamlines continuous water phase vicinity inlet zone. It that oil which penetrated zone formed an oily pool (an zone) containing close This W/O emulsion rich caused inversion. effects concentration, emulsifier content rolling speed on area were investigated, it extent influenced as well concentration....
The purpose of this study was to evaluate the correlation between fluorine-18 fluorodeoxyglucose (FDG) thymic uptake and a normal appearing thymus on CT. Non-attenuation corrected FDG positron emission tomography (PET) data from 94 young persons (mean age 25.4 years, range 18-29 years) with diagnosed CT were retrospectively evaluated. No subject had clinical symptoms suggestive thymus-related disease or mediastinal tumour (follow-up period 6-69 months). PET images visually assessed count...
Feature Issue on Optical Interconnection Networks (OIN). We describe hybrid optical-electrical systems that perform header processing and buffering of ultrafast, asynchronous optical packets. Our are enabled by three key, novel devices: an all-optical serial-to-parallel converter, clock-pulse generator, a photonic parallel-to-serial-converter. These devices allow utilization complementary metal-oxide semiconductor technology for compact, highly functional packet processing. A simplified node...
Summary. There are several established risk factors for intrahepatic cholangiocarcinoma (ICC), namely primary sclerosing cholangitis, fibropolycystic liver disease, parasitic infection, biliary stones and chemical carcinogen exposure. However, the majority of patients with ICC do not have any these factors. Therefore, identification other is warranted prevention early detection ICC. We evaluated in a large-scale cohort study province Osaka, Japan. This retrospective included 154,814...
ABSTRACT In Japan, 4.6 million people are living with dementia and the number is expected to rise 7 by 2025. Amyloid-β (Aβ) positron emission tomography (PET) used for cognitively normal Japanese or without subjective cognitive decline (SCD) purpose of clinical trials diagnosis. Nevertheless, no empirical studies have been conducted on safety disclosing amyloid status such populations. We PET imaging 42 participants (Aβ positive ( n = 10) negative 32)). State anxiety depression were measured...
Abstract Background The Response Evaluation Criteria in Solid Tumors (RECIST) for computed tomography (CT) is preoperatively used to evaluate therapeutic effects. However, it does not reflect the pathological treatment response (PTR) of pancreatic ductal adenocarcinoma (PDAC). Positron Emission Tomography (PERCIST) positron emission (PET)/CT effective other cancers. This study aimed confirm usefulness PERCIST and prognostic utility PET/CT PDAC. Methods Forty‐two consecutive patients with...
Abstract The incidence of chromosomal anomalies in early bovine embryos derived from follicular oocytes fertilized vitro using sperm separated by Percoll density gradient centrifugation was investigated. Overall, were observed 13.7% (138/1005) embryos. There 14 haploids (1.4%), 2 hypodiploids (0.2%), 6 hyperdiploids (0.6%), 101 triploids (10.0%), 12 tetraploids (1.2%), diploid/triploid mosaics and 1 diploid/tetraploid mosaic (0.1%). frequency triploidy caused mainly polyspermy. a significant...
We demonstrate the interconnection of two optical packet switching systems: a hybrid optoelectronic router and rings. Error-free inter-ring intra-ring transmission unicast multicast transport encapsulated 10 GbE are achieved.
<b><i>Background:</i></b> Most cases of dementia with Lewy bodies (DLB) show Alzheimer's disease pathology-like senile plaques and neurofibrillary tangles. Several studies have also revealed a high prevalence positive amyloid imaging positron emission tomography (PET) in DLB moderate Parkinson's (PD) dementia. However, it remains unclear PD without as to when the brain β (Aβ) burden begins progresses. Our study aimed determine Aβ deposition using PET....
We present a photonic random access memory (RAM) that can write and read high-speed asynchronous burst optical packets freely by specifying addresses. The RAM consists of an clock-pulse generator, all-optical serial-to-parallel converter, parallel-to-serial all developed us, complementary metal-oxide-semiconductor as storage medium, features large capacity, long-term storage, at arbitrary timing, low power consumption, compactness. experimentally confirm its basic operation for 40-Gb/s 16-b packets.
A comparison between electrospray ionization (ESI) and the recent introduced atmospheric pressure photo-ionization (APPI) technique is described for liquid chromatography/mass spectrometric (LC/MS) determination of aflatoxin B1, B2, G1 G2 in food. For optimization APPI, several APPI ion source parameters were examined. Furthermore, chemical noise signal suppression ESI by sample matrix interference investigated. The results indicated that has low little with ESI. mean recovery each from...