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Chapter and Conference Paper
Visualization of Microvessels in Skin by Three-Dimensional Ultrasound Microscope
A non-invasive imaging technique capable of visualizing microvessels through epidermis to subdermis has been strongly desired. A PVDF ultrasonic transducer with the central frequency of 100 MHz and the focal l...
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Chapter and Conference Paper
High Frequency Ultrasound Imaging of Cartilage-Bone Complex
High frequency ultrasound microscope with central frequency of 100 MHz was developed. The system was capable of (1) conventional C-mode acoustic microscope imaging of thinly sliced tissue, (2) ultrasound imped...
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Chapter and Conference Paper
Tangible Modelling of Ventricular Aneurysm
Myocardial infarction (MI) may cause left ventricular aneurysms (LVAs) as the long-term and obsolete complications. Following MI, the scar will replace the necrotic lesion within a few weeks. As a result, a po...
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Chapter and Conference Paper
Hemodynamic response with an artificial myocardial assistance in chronic animal examination
Thromboembolic and haemorrhagic complications are the primary causes of mortality and morbidity in patients with artificial hearts, which are known to be induced by the interactions between blood flow and arti...
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Chapter and Conference Paper
Effect of Measurement Error on Ultrasonic-Measurement-Integrated Simulation of Blood Flow in an Aortic Aneurysm
Stresses due to blood flow on a blood vessel wall (hemodynamic stresses) are closely related to development and progression of circulatory diseases such as atherosclerosis and aneurysm. Therefore, for advanced...
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Chapter and Conference Paper
Radio Frequency Signal Analysis for Tissue Characterization of Coronary Artery: In Vivo Intravascular Ultrasound Study
Intravascular ultrasound (IVUS) is an important clinical tool that provides high resolution cross-sectional image of coronary artery. However, it is difficult to accurately classify plaque composition by conve...
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Chapter and Conference Paper
Ultrasonic Nano-Imaging System for Medicine and Biology
The ultrasonic nano-imaging system for medicine and biology that has two measurement modes was developed. The transmission mode realized non-contact high resolution imaging of cultured cells. This mode can be ...
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Chapter and Conference Paper
First Trial of the Chronic Animal Examination of the Artificial Myocardial Function
Thromboembolic and haemorrhagic complications are the primary causes of mortality and morbidity in patients with artificial hearts, which are known to be induced by the interactions between blood flow and arti...
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Chapter and Conference Paper
Elastic Changes of Capsule in a Rat Knee Contracture Model Assessed by Scanning Acoustic Microscopy
Sound speed of a capsule in a rat knee contracture model was measured by scanning acoustic microscopy. There was no statistical significant difference in the anterior capsule compared with the control group. H...
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Chapter and Conference Paper
Preliminary Study on Interactive Control for the Artificial Myocardium by Shape Memory Alloy Fibre
The authors have been develo** a sophisticated artificial myocardium for the treatment of heart failure, which is capable of supporting contractile function from the outside of the ventricle. The purpose of ...
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Chapter and Conference Paper
Low-intensity Ultrasound Induces a Transient Increase in Intracellular Calcium and Enhancement of Nitric Oxide Production in Bovine Aortic Endothelial Cells
Background: Nitric oxide (NO) plays a key role in regulating various biological processes including vasodilation, neurotransmission, inflammatory responses, the immune system and apoptosis. In endothelial cell...
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Chapter and Conference Paper
Engineering Support in Surgical Strategy for Ventriculoplasty
Endoventricular patch plasty, called the Dor procedure, is performed as a heart reconstruction for the surgical treatment of the patients with severe heart failure associated with anteroapical large myocardial...
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Article
Targeted delivery of NK4 to multiple lung tumors by bone marrow-derived mesenchymal stem cells
Most advanced solid tumors metastasize to different organs. However, no gene therapy effective for multiple tumors has yet been developed. Since a unique characteristic of bone marrow-derived mesenchymal stem ...
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Chapter and Conference Paper
Support Mechanism of a Newly-Designed Mechanical Artificial Myocardium using Shape Memory Alloy Fi bres
As the heart failure is caused by the decrease in the myocardial contraction, the direct mechanical myocardial assistance in response to physiological demand, that is, the synchronous support of the contractil...
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Chapter and Conference Paper
Automated Calcification Detection and Quantification in Intravascular Ultrasound Images by Adaptive Thresholding
An innovative application of adaptive thresholding is used for calcification regions detection in intravascular ultrasound images. A priori knowledge about the acoustic shadow that usually follows the calcificati...
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Article
Relationships of C-reactive protein, uric acid, and glomerular filtration rate to arterial stiffness in Japanese subjects
The relationships between C-reactive protein (CRP), uric acid (UA), glomerular filtration rate (GFR), and arterial stiffness have not been fully investigated. The aim of this study was to clarify whether CRP, ...
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Article
Symptoms in relation to chemicals and dampness in newly built dwellings
Objectives: As the airtightness of dwellings has recently increased, problems associated with indoor air pollution and dampness have become important environmental health issues. The aim of this study was to clar...
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Chapter and Conference Paper
Ultrasonic Sound Speed Microscope for Biological Tissue Characterization Driven by Nanosecond Pulse
Ultrasonic microscopy is expected as a powerful tool for biological tissue characterization. Its clinical application to histopathological examination during surgery is being considered. The data are also impo...
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Article
Bilateral pneumothoraces with multiple bullae in a patient with asymptomatic bronchiolitis obliterans 10 years after bone marrow transplantation
A 16-year-old boy developed bronchiolitis obliterans (BO) 10 years after BMT for myelodysplastic syndrome. Although the patient complained of almost no dyspnea on exertion, he had mild hypercapnea with a marke...
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Article
A note on the chemical composition of lake water in the Laguna Amarga, a saline lake in Patagonia, Chile
The chemical composition of lake water in Laguna Amarga, a small, shallow, saline lake near the Torres del Paine National Park (at 51°S), Chilean Patagonia, was studied in January, 1993. The water was strongly...
