A5081658696- Aortic aneurysm repair treatments
- Vascular Procedures and Complications
- Cardiac, Anesthesia and Surgical Outcomes
- Peripheral Artery Disease Management
- Aortic Disease and Treatment Approaches
- Reproductive Biology and Fertility
- Computational Fluid Dynamics and Aerodynamics
- Fluid Dynamics and Turbulent Flows
- Renal and Vascular Pathologies
- Non-Destructive Testing Techniques
- Infectious Aortic and Vascular Conditions
- Venous Thromboembolism Diagnosis and Management
- Magnetic Field Sensors Techniques
- Cerebrovascular and Carotid Artery Diseases
- Intracranial Aneurysms: Treatment and Complications
- Characterization and Applications of Magnetic Nanoparticles
- Abdominal vascular conditions and treatments
- Pluripotent Stem Cells Research
- Reconstructive Surgery and Microvascular Techniques
- Surgical Simulation and Training
- 3D Printing in Biomedical Research
- Conducting polymers and applications
- Spacecraft and Cryogenic Technologies
- Cardiovascular Syncope and Autonomic Disorders
- Acute Ischemic Stroke Management
Asahi General Hospital
2024-2025
Japan Steel Works (Japan)
2024
University of Tokyo Hospital
2014-2022
The University of Tokyo
2005-2021
Weatherford College
2021
Dai Nippon Printing (Japan)
2009-2017
Ome Municipal General Hospital
2016-2017
Center for Vascular Biology Research
2017
Progress (Ireland)
2013
Itron (United States)
2013
Background: With respect to endovascular aneurysm repair (EVAR), the development of advanced techniques and devices, namely, Cook Zenith Gore Excluder, has helped overcome device-related problems, including device migration. Deformities abdominal aortic aneurysms (AAAs) can influence long-term outcome EVAR. The post-implantation behavior stent grafts in AAAs with a severely angulated neck (SAN) was examined. Methods Results: Among 190 AAA patients who underwent EVAR, 46 had SAN more than 60...
<i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">In vitro</i> culture (IVC) of the mammalian embryo is an essential technique in reproductive technology and other related life science disciplines. Although embryos are usually cultured groups, a single has been highly desired for IVC to investigate developmental processes. In this study, we proposed developed first coculture device, which allows making array with endometrial cells by controlling...
From 2001 to 2012, arterial reconstruction was performed in 306 out of 497 limbs (62%) with critical limb ischemia. The reasons for non-vascularization include high operative risk (36%), extended necrosis or infection (20%), and technical issues (15%). Cumulative patency salvage collagen disease were significantly worse compared arteriosclerosis obliterans. salvage, amputation free survival (AFS), major adverse event perioperative death (MALE + POD) patients end-stage renal (ESRD) without...
Background We aimed to develop a simple structural model of aortic aneurysms using computer‐assisted drafting ( CAD ) in order create basis definition for saccular aneurysms. Methods and Results constructed aneurysm with 2 components: tube similar an aorta ellipse analogous bulging aneurysm. Three parameters, including the vertical horizontal diameters fillet radius, were altered model. Using analysis finite element method, we visualized distribution maximum principal stress MPS wall...
A complete theory is developed in Part I of these two papers for the analysis oscillating airfoils cascade uniform incompressible flows. The fully accounts geometry and parameters. It shown that strong mean velocity gradient near leading edges significantly affects unsteady pressure, forces moments acting upon airfoils. In II aeroelastic characteristics a loaded are investigated one degrees freedom oscillations.
A highly sensitive detection system for magnetic contaminants using a High-Tc superconducting quantum interference device (SQUID) was developed. Finding ultra-small metallic is big issue manufacturers producing commercial products such as lithium ion batteries. When the contamination does occur, manufacturer of product suffers great loss to recall tainted products. The outer dimension particles less than 100 microns can not be detected by X-ray imaging, which commonly used inspection method....
Background:Quantification of geometric changes the stent graft (SG) in abdominal aortic aneurysm has been required for follow up endovascular repair (EVAR). The aim was to develop an image-based modeling system (V-Modeler) investigate these over time.Methods and Results:V-Modeler applied migration SG. Three sets computed tomography images were taken at 3 different times: (1) 5 days after implantation; (2) 7 months later when unilateral leg migrated upward; (3) 10 limb had into common iliac...
Contents The purpose of this study was to assess the feasibility polyester mesh culture for in vitro production bovine embryos, as is an alternative way tracking individual embryos throughout using time‐lapse cinematography (TLC). Bovine were isolated during sections three different polyethylene terephthalate (PET) products. In matured and fertilized oocytes cultured 217 × 217, 230 or 238 238‐μm openings PET simple micro‐drops (control) 7 days under either 20% 5% O 2 tensions. No difference...
A three channel High-Tc SQUID system for detection of magnetic contaminants in industrial products was developed. Finding ultra-small metallic is a big issue manufacturers producing commercial such as lithium ion batteries. When the contamination does occur, manufacturer product suffers great loss to recall tainted products. The outer dimension particles less than 100 micron can not be detected by X-ray imaging, which commonly used inspection method. Therefore, highly sensitive small...
A two-channel high-T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> SQUID gradiometer system for the detection of magnetic foreign matter in a lithium-ion battery was developed. Finding ultra-small metallic particles can be big issue manufacturer that produces commercial products such as batteries. If presence is detected its products, has to recall and thereby suffers significant loss. Previously, we developed based on single-channel...
A prosthetic vascular graft that induces perigraft tissue incorporation may effectively prevent serious sequelae such as seroma formation and infection. Radiation-crosslinked gelatin hydrogel (RXgel) mimics the chemical physical properties of in vivo extracellular matrix facilitate wound healing by promoting organization. Fibroblasts cultured on RXgel actively migrated into gel for up to 7 days. RXgels three different degrees hardness (Rx[10], soft; Rx[15], middle; Rx[20], hard) were...
Ruptured tibioperoneal trunk aneurysms are rare, and Klebsiella pneumoniae is seldom reported as a causative bacterium of infectious aneurysms. We report case pseudoaneurysm caused by hypermucoviscous K. infection. The aneurysm ruptured bled into the abscess cavity lower leg. Endovascular coil embolization was performed, successfully excluded. After procedure, collateral circulation maintained, infection controlled. In present report, we describe significant history in which contributed to...
Objective: We assessed the effectiveness and appropriateness of our original off-the-job training (Off JT) system using data acquired from recruited medical students doctors. Materials Methods: presented homebuilt Off JT system, which is simple inexpensive. In unique we performed anastomosis at bottom a plastic pot, mimics actual open surgical procedure deep site. There were four evaluation points: (A) operating time, (B) performance by semi-automatically analyzing image with coefficient...
Objective: To create a web application that can evaluate suture performance and assess its quality. Material Methods: We developed the using few cloud computing systems, servers, database, languages. used 20 anastomosed graft samples for optimizing application. The images of grafts were captured two-dimensionally. Five vascular surgeons utilized to compute objective score rank anastomoses subjectively. Results: Steps include uploading two-dimensional image sutures, tracing stitch line...
BackgroundThe purpose of this study was to evaluate the factors associated with asymptomatic splenic artery aneurysm (SAA) dilatation.MethodsAmong patients SAA admitted our department from 2001 2018, 70 lesions in 59 were selected and analyzed retrospectively. There no cases rupture or pregnancy follow-up period. We defined egg-shell appearance as >75% calcification outer shell. measured dilatation rate (mm/year) evaluated comorbidity anatomical using univariate multiple linear regression...
Patients with spinal cord injury experience changes in the cardiovascular system and a high morbidity associated peripheral artery disease. We report case of acute aortic occlusion patient chronic paralysis due to injury. A 65-year-old man developed mottling right extremity. Because complete tetraplegia, had no subjective symptoms. Computed tomography revealed infrarenal abdominal aorta. An emergency thromboembolectomy established adequate blood flow, postoperative course was uneventful. The...
Abstract To analyze the correlation between aneurysm wall enhancement (AWE) values and early late sac shrinkage after endovascular repair (EVAR). We retrospectively analyzed 28 patients who underwent EVAR for abdominal aortic aneurysms (AAA) using a bifurcated main body stent graft. The value of AWE in slice maximum AAA diameter was measured volumetric analysis computed tomography images. Sac measurements before more than 10 months were compared, rate calculated. immediately (4 to 7 days)...
A systematic theory is developed for airfoils in cascade oscillating about their mean position with constant interblade phase angle a uniform incompressible flow. The fully accounts the effect of attack flow, airfoils’ thickness and camber, solidity stagger. formulation leads to two singular integral equations complex plane which are solved numerically by collocation. results show that certain values angle, incidence have significant influence on unsteady lift moment particularly staggered cascades.