A5057125457- Advanced MRI Techniques and Applications
- Advanced Neuroimaging Techniques and Applications
- MRI in cancer diagnosis
- Cardiac Imaging and Diagnostics
- Cerebrovascular and Carotid Artery Diseases
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Organic Chemistry Cycloaddition Reactions
- Thin-Film Transistor Technologies
- Silicon Nanostructures and Photoluminescence
- Cerebral Venous Sinus Thrombosis
- Chemical Reactions and Mechanisms
- Intracranial Aneurysms: Treatment and Complications
- Cardiovascular Health and Disease Prevention
- Oxidative Organic Chemistry Reactions
- Breast Lesions and Carcinomas
- Synthesis and Catalytic Reactions
- Phase-change materials and chalcogenides
- Industrial Vision Systems and Defect Detection
- Pesticide Exposure and Toxicity
- Knee injuries and reconstruction techniques
- Ophthalmology and Eye Disorders
- Analytical Methods in Pharmaceuticals
- Cerebrospinal fluid and hydrocephalus
- Lanthanide and Transition Metal Complexes
Imaging Center
2013
St. Marianna University School of Medicine
2013
Kurashiki Central Hospital
2004-2008
Osaka University
1990-1998
Osaka Health Science University
1998
Heriot-Watt University
1995
Osaka Prefectural Institute of Public Health
1982-1992
Abstract Introduction Synovial mesenchymal stem cells (MSCs) have high proliferative and chondrogenic potentials, MSCs transplanted into the articular cartilage defect produce abundant extracellular matrix. Because of similarities between intervertebral disc cartilage, synovial are a potential cell source for regeneration. Here, we examined effect intradiscal transplantation after aspiration nucleus pulposus in rabbits. Methods The tissues rabbit's discs were aspirated to induce...
The induction of synovial tissue to the meniscal lesion is crucial for healing. Synovial Mesenchymal stem cells (MSCs) are an attractive cell source because their high proliferative and chondrogenic potentials. We examined whether transplantation MSCs promoted healing after repair extended longitudinal tear avascular area in a microminipig model.Longitudinal was made medial menisci sutured both knees, then MSC suspension administered 10 min only unilateral knee. meniscus evaluated...
<b>BACKGROUND AND PURPOSE:</b> In the treatment of carotid atherosclerosis, rate stenosis and characteristics plaque should be assessed to diagnose vulnerable plaques that increase risk for cerebral infarction. We performed black-blood (BB) MR imaging components assess hardness based on signals. <b>MATERIALS METHODS:</b> Three images BB-MR per were obtained from 70 consecutive patients who underwent endarterectomy (CEA) generate T1- T2-weighted images. To evaluate relative signal intensity...
Purpose: To introduce, optimize, and assess the feasibility of a new scheme to rapidly acquire high-resolution volumetric neurographic images using three-dimensional turbo spin-echo sequence combined with diffusion-weighted pre-pulse called improved motion-sensitized driven equilibrium (iMSDE): Diffusion-prepared MR Neurography (D-prep MRN). Methods: In order optimize signal suppression blood vessels muscle at D-prep MRN, coronal lumbosacral plexus were acquired in five volunteers 3T,...
We investigated microstructural changes in the spinal cord, separately for white matter and gray matter, patients with cervical spondylosis by using diffusional kurtosis imaging (DKI). studied 13 consecutive myelopathy (15 affected sides 11 unaffected sides). After conventional magnetic resonance (MR) imaging, DKI data were acquired a 3 T MR scanner. Values fractional anisotropy (FA), apparent diffusion coefficient (ADC), mean (MK) calculated compared between cords, matter. Tract-specific...
The aim of this study was to estimate the risk injury from dental magnetic attachments due their radiofrequency (RF) heating and magnetically induced displacement during 3.0 T MRI.
We demonstrated a new scheme for performing the T1-enhanced whole-brain black-blood imaging pulse sequence using motion-sensitized driven-equilibrium prepared 3-dimensional (3D) turbo spin echo (MSDE-TSE) with anti-driven-equilibrium post pulse. The use of an considerably improved T1 contrast MSDE-TSE images. This can be used 3D volumetric T1-weighted and may improve accuracy anatomical localization certain brain lesions.
To examine whether the T1 rho value reflects histological changes in menisci we analyzed relationship between and findings intact radially incised of pigs.Seven microminipigs were used for this experiment. A radial incision was created repaired medial meniscus, which evaluated 4 weeks after surgery. Sagittal mapping images taken by 3.0T magnetic resonance imaging (MRI). The region interest set dividing meniscus into six zones (from zone 1 to 6). For evaluation menisci, characteristics each...
A reversible photo-induced change has been observed in the polarization dependence of a transverse electroabsorption signal for hydrogenated amorphous silicon, which is indicative occurrence structural whole material. The proceeds rapidly under steady light exposure until saturation reached, while decrease photoconductivity becomes significant just after saturation. These observations convince us that large-scale photostructural involved degradation electronic properties material addition to...
The aim of this study was to investigate the prevalence hypointensity on T2 star-weighted imaging (T2*WI), which is useful for detecting hemosiderin, in endometriomas and other ovarian tumors. efficacy adhesions around tumors also investigated.Pelvic magnetic resonance (MR) examinations, including T2*WI, were carried out. inclusion criteria female patients with surgical treatments. One hundred seventeen a total 147 lesions enrolled. Two radiologists retrospectively evaluated MR (MRI) predict...
The pharmacokinetics of p-chloronitrobenzene (p-CNB) in human subjects suffering from acute poisoning was studied the urinary excretion p-CNB metabolites. time course for five metabolites--2-chloro-5-nitrophenol,N-acetyl-S-(4-nitrophenyl)- L-cysteine, 2,4-dichloroaniline, p-chloroaniline, and 2-amino-5-chlorophenol-were determined by reversed-phase HPLC analysis urine collected six during their hospitalization after accidental exposure to p-CNB. cumulative amount at infinite (X infinity)...
Detailed information on anatomy and hemodynamics in cerebrovascular disorders such as AVM Moyamoya disease is mandatory for defined diagnosis treatment planning. Arterial spin labeling technique has come to be applied magnetic resonance angiography (MRA) perfusion imaging recent years. However, those non-contrast techniques are mostly limited single frame images. Recently we have proposed a time-resolved MRA termed contrast inherent inflow enhanced multi phase combining spatial resolution...
We investigated the feasibility of combining active contour model with gradient vector flow (Snakes-GVF) to estimate left ventricular (LV) volumes from cardiac cine magnetic resonance imaging (MRI). MRI data were acquired 27 patients, including 14 adults (9 men, 5 women, 55.0±23.3 years) and 13 children (10 boys, 3 girls, 2.7±2.1 using Gyroscan Intera (1.5 Tesla, Philips Medical Systems). LV calculated by adding areas surrounded extracted Snakes-GVF compared estimated manual tracing. Those...