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Nishidate Izumi - - 2013
We propose a method to visualize the arterial inflow, the vascular resistance, and the venous capacitance in the skin tissue from red, green, blue (RGB) digital color images. The arterial inflow and the venous capacitance in the skin tissue are visualized based on an increase in the rate of change ...
Nishidate Izumi - - 2013
ABSTRACT. We propose a method to visualize the arterial inflow, the vascular resistance, and the venous capacitance in the skin tissue from red, green, blue (RGB) digital color images. The arterial inflow and the venous capacitance in the skin tissue are visualized based on an increase in the rate of ...
Nishidate Izumi I Tokyo University of Agriculture and Technology, Graduate School of Bio-application and Systems Engineering, Koganei, Tokyo 184-8588, Japan. - - 2013
We propose a method to visualize the arterial inflow, the vascular resistance, and the venous capacitance in the skin tissue from red, green, blue (RGB) digital color images. The arterial inflow and the venous capacitance in the skin tissue are visualized based on an increase in the rate of change ...
Ritter Jens C - - 2013
Endoleaks combined with increasing sac size following endovascular aneurysm repair require reintervention to prevent secondary aneurysm rupture. For standard infrarenal stent grafts, there are multiple treatment strategies available. However, in the presence of a fenestrated or branched stent graft, options are limited. We describe a novel challenging approach to treat ...
Cohen Jonathan - - 2013
In spite of the importance of correct interpretation of umbilical artery Doppler velocimetry, we have noticed that practice with regard to this is not homogeneous. Indeed, it is well known that Doppler parameters vary along the length of the umbilical cord and that these variations follow a gradient: resistances are ...
Aerden Dimitri - - 2013
Purpose: Subintimal crossing of total occlusions and acquiring reentry into the true lumen may be hazardous in highly calcified lesions, with or without the use of expensive reentry devices. Even when desirable, intraluminal crossing may not be feasible, because the guidewire tends to follow a path of least resistance between ...
Patel Amisha J - - 2013
We describe the case of a 60-year-old man with prior rotational atherectomy and drug-eluting stent to the left anterior descending artery (LAD) who presented with shortness of breath and chest pain 8 weeks after stent placement. Further workup revealed a large pericardial effusion with gram stain positive for methicillin-resistant Staphylococcus ...
Mallios Alexandros - - 2013
A 60-year-old male patient presented with a false aneurysm of the common iliac artery and methicillin-resistant Staphylococcus aureus septicemia complicating previously placed kissing covered stents of the aortic bifurcation. We removed the prosthetic material and repaired the aortic bifurcation with a composite saphenous vein panel graft. To our knowledge, this ...
De Santis Gianluca - - 2013
The aim of this study is to analyze the shape and flow changes of a patient-specific carotid artery after carotid artery stenting (CAS) performed using an open-cell (stent-O) or a closed-cell (stent-C) stent design. First, a stent reconstructed from micro-computed tomography (microCT) is virtually implanted in a left carotid artery ...
Gonzalez Manuel - - 2013
BACKGROUND: Leptin levels are elevated in obese humans. Several studies have shown an association between hyperleptinemia and development of atherosclerosis and cardiovascular disease (CVD), but the relationship between leptin and vascular function remains unclear. AIM: To evaluate associations between circulating plasma leptin and measures of vascular function in a large ...
Murai Tadashi - - 2013
Background: The relationship between the functional significance of epicardial coronary artery stenosis and microvascular resistance remains to be determined. Furthermore, little is known regarding the determinants of microvascular resistance in patients with intermediate coronary lesions. Methods and Results: Using a pressure-temperature sensor-tipped guidewire, thermodilution-derived index of microcirculatory resistance (IMR) was measured, along ...
Khanduri Sachin S Department of Radiology, Era's Lucknow Medical College and Hospital, ELMCH, Sarfarazganj Hardoi Road, Lucknow, 226003 UP - - 2013
Intrauterine growth restriction is associated with increased perinatal mortality and morbidity, possibly extending also in adult life, as compared to fetuses and newborns presenting characteristics of normal growth. The present study had been planned to measure the pulsatility index (PI) and resistive index of the middle cerebral artery with pulsatility ...
Feliciano M A R - - 2013
This study aimed to evaluate the characteristics of the brain and vascular indicesof the middle cerebral artery of canine foetuses. Twenty-five bitches were selected. Tissue development, echogenicity, echotexture and brain echobiometric data were studied, and the major structures were identified between the 5th and 8th gestational weeks. The area and ...
Yu Jung-Hee JH Division of Endocrinology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, - - 2013
We investigated the association of coronary artery calcium score (CACS) with body composition and insulin resistance in apparently healthy Korean adults. Nine hundred forty-five participants (mean age, 48.9 years; 628 men) in a medical check-up program were selected for analysis. Body composition was assessed by bioelectrical impedance analysis (BIA). Insulin ...
Kai Y Y Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. - - 2013
A modified technique is required in patients with wide-necked aneurysms whose treatment by the single microcatheter technique is difficult. We developed a 6-Fr guiding catheter (Slim Guide(®)) that features a large lumen (0.072 inch) for performing the modified technique. To evaluate the usefulness of Slim Guide(®) we carried out experiments ...
Parrau Daniela - - 2013
We determined whether store operated channels (SOC) are involved in neonatal pulmonary artery function under conditions of acute and chronic hypoxia, using newborn sheep gestated and born either at high altitude (HA, 3,600m) or low altitude (LA, 520 m). Cardiopulmonary variables were recorded in vivo, with and without SOC blockade ...
Kasmeridis Charalampos - - 2013
Aspirin is still the mainstay of antiplatelet therapy in the secondary prevention of coronary artery disease. However certain patients do not benefit from the antithrombotic effects of aspirin. The phenomenon of so-called aspirin resistance can be considered from the clinical and laboratory perspective. A variety of methods have emerged for ...
Wideman R F - - 2013
Pulmonary arterial hypertension (PAH) syndrome in broilers (also known as ascites syndrome and pulmonary hypertension syndrome) can be attributed to imbalances between cardiac output and the anatomical capacity of the pulmonary vasculature to accommodate ever-increasing rates of blood flow, as well as to an inappropriately elevated tone (degree of constriction) ...
Iwasaki Satoru - - 2013
To elucidate the key points for safe performance of transradial angiography. Transradial angiography can be performed safely if attention is paid to the following points from after radial artery puncture to reaching the aortic arch: resistance during guide wire operation for sheath insertion after puncture; confirmation of the superficial brachial ...
Chang Huai-Ren - - 2013
Coronary artery fistulae that drain into the left ventricle are extremely rare, and even fewer cases of fistulae involving all three of the coronary arteries have so far been reported. We herein report a 64-year-old woman with a unique pattern of coronary artery-left ventricular fistulae that involved all three of ...
Tong Yan Qing - - 2013
A 48-year-old asian man was admitted to hospital for the consideration of hemodialysis (HD). An adequate site was decided on for the AVF after Doppler ultrasonography examination of radial artery and cephalic vein. The AVF was formed under local anaesthetic at his right wrist. When seen at the clinic appointment ...
Zainah Hadeel H Infectious Diseases Department, Henry Ford Hospital, 2799 W. Grand Boulevard, CFP-304, Detroit, MI 48202, - - 2013
Daptomycin has been used with success for the treatment of right-sided methicillin-resistant Staphylococcus aureus (MRSA) endocarditis. However, its efficacy has not been completely assessed for the treatment of MRSA endocarditis when it is associated with pulmonary septic emboli. Hereby, we present a case of MRSA mitral and tricuspid native valve ...
Spence Angela L AL School of Sport Science, Exercise & Health (M408), The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia. - - 2013
Abstract  This randomized trial evaluated the impact of different exercise training modalities on the function and size of conduit arteries in healthy volunteers. Young (27 ± 5 years) healthy male subjects were randomized to undertake 6 months of either endurance training (ET; n = 10) or resistance training (RT; n ...
Shah Sachil - - 2012
Despite over 6 decades of progress in the development of pharmacological therapy for hypertension, severe drug-resistant hypertension remains a major problem. Endovascular radiofrequency ablation of the proximal renal arteries has been reported to decrease renal artery sympathetic activity and improve long-term hypertensive control. Existing "approved" catheters for this procedure are ...
Nour Sayed - - 2012
Background: Cardiac-assist devices for right ventricular failure remain controversial with poor results. This study evaluated a pulsatile cardiac-assist device in an acute right ventricular failure model vs. current therapies. Materials and methods: Pulmonary regurgitation was created in 12 piglets by valve avulsion and external transfixation of 2 pulmonary artery cusps ...
Skinner Gregory J - - 2012
The presence of an atrial septal defect in pulmonary hypertension has benefits and detractions. Even in idiopathic pulmonary arterial hypertension, a significant left-to-right shunt at atrial level may increase the pulmonary arterial pressure and exacerbate the disease. However, it is well recognised that the presence of an atrial communication may ...
Bergler Tobias - - 2012
Usage of cyclosporine A (CsA) after kidney transplantation may be associated with development of nephrotoxicity and vasculopathy, but the mechanisms by which CsA causes vascular dysfunction are still under scrutiny. We established a transplantation model and investigated the effect of CsA on vascular contractility with the aid of a pressurized ...
Poon Chuen Yeow - - 2013
Pulmonary arterial (PA) hypertension in preterm infant is an important consequence of chronic lung disease of prematurity (CLD) arising mainly due to impaired alveolar development and dysregulated angiogenesis of the pulmonary circulation. Although PA pressure and resistance in these children normalise by school age, their pulmonary vasculature remains hyper-reactive to ...
Fisher Gordon G Department of Nutrition Sciences, University of Alabama at Birmingham, 427 Webb Building, 1675 University Blvd, Birmingham, AL 35294-3360, USA. - - 2013
The purpose of this investigation was to examine the associations between circulating markers of inflammation and arterial elasticity in healthy older women. Participants were 50 women older than 60 years of age, body mass index 27 ± 4, and physically untrained. Large artery elasticity, small artery elasticity, systemic vascular resistance, ...
Waxman Aaron B - - 2012
The lungs are the only organ that receives the entire cardiac output with every stroke. The pulmonary circulation is normally a high-flow, low-resistance, low-pressure system that carries blood into the pulmonary microcirculation. In pulmonary artery hypertension (PAH)vascular remodeling contributes to a sustained elevation of pulmonary vascular resistance (PVR) and pulmonary ...
Saba Luca - - 2012
The purpose of this study was to evaluate the relationship between MDCT angiography-assessed carotid artery plaque volume and composition and the presence of ulceration. Seventy consecutive patients (46 men and 24 women; mean age, 63 years; age range, 42-81 years) were studied using MDCT and were retrospectively analyzed. Component types ...
Kono K - - 2012
Carotid duplex sonography is a useful method for evaluation of dural arteriovenous fistulas. The resistance index of the external carotid artery has been reported to correlate with the efficacy of treatment and recurrence or aggravation of dural arteriovenous fistulas. Herein, we describe a case of dural arteriovenous fistulas mainly supplied ...
Masuda Daisaku - - 2012
Eur J Clin Invest 2012 ABSTRACT: Background  Postprandial hyperlipidemia partially refers to the postprandial accumulation of chylomicrons and chylomicron remnants (CM-R). Many in vitro studies have shown that CM-R has highly atherogenic properties, but consensus is lacking on whether CM-R accumulation correlates with the development of atherosclerotic cardiovascular diseases. We ...
Hirayama Yoji - - 2013
A 22-year-old Japanese woman was diagnosed with hemophagocytic lymphohistiocytosis and subsequently was treated with etoposide and cyclophosphamide. On Day 22, multiple nodular lesions appeared in the bilateral lungs. Neither the administered antibiotics nor the antifungal agent were effective, and she died suddenly of respiratory failure on Day 35. An autopsy ...
Campos Wuilker Knoner - - 2012
We presented a case of drug-resistant trigeminal neuralgia attributed to vertebrobasilar dolichoectasia, a rare condition characterized by enlargement, tortuosity, or elongation of intracranial arteries. Dolichoectatic vessels can cause dysfunction of cranial nerves through direct vascular compression. The relationships of vertebrobasilar dolichoectasia with the particularities of neurovascular conflict and images findings ...
Tian Feng - - 2011
In general, percutaneous coronary intervention (PCI) relieves vessel stenosis by implantation of a stent, however, the relationship between plaque characteristics and response after stenting is not clear. We enrolled 68 patients (68 vessels) with diagnosed unstable angina pectoris that prospectively underwent PCI and an optical coherence tomography (OCT) examination was ...
Rathore Sudhir - - 2011
BACKGROUND: Conflicting data have been reported about the association between plaque composition and remodelling index (RI). The aim of this study is to evaluate the relationship between plaque morphology obtained by optical coherence tomography (OCT) and arterial remodelling. METHODS AND RESULTS: OCT and intravascular ultrasound imaging pull back was performed ...
Amin-Hanjani Sepideh - - 2011
Venous angiomas are currently widely referred to as developmental venous anomalies (DVAs), reflecting the prevailing concept that they represent anomalous, but functional, venous channels within the brain parenchyma. Although DVAs are not infrequently associated with other vascular malformations that harbor hemorrhage risk or can present symptomatically, isolated DVAs themselves appear ...
Coutinho Thais - - 2011
Functional performance influences quality of life in individuals with peripheral artery disease (PAD) and is also a powerful prognostic marker in these patients. The pathophysiology of impaired functional performance in patients with PAD is incompletely understood. The severity of atherosclerotic burden, non-invasively assessed by the ankle-brachial index (ABI), does not ...
Meng Qingxin - - 2011
The aim of the study was to trace the peripheral artery velocity with ultrasound in pigs and provide inference on diagnosis of the type, location and severity of vascular diseases. Limb tightening, adrenaline administration and arterial wall pinching were performed independently in six pigs, and then the evolution of the ...
Yang Fei-Fei - - 2011
StentBoost (SB) is a novel angiographic technique which can enhance stent visualization and improve detection of inadequate stent expansion. Studies of SB that compare it with intravascular ultrasound (IVUS), which is the current gold standard for detection of stent underexpansion, remain inadequate. This study aimed to test the correlation of ...
Hayashi Kei - - 2011
Objective: To (1) determine the microanatomic vascular distribution in ruptured canine cranial cruciate ligaments (CCL) using specific vascular immunohistochemical techniques, and (2) compare vessel density between ruptured and intact canine CCL and between different areas of interest in ruptured CCL using histomorphometric analysis. Study Design: In vitro study. Animals: Dogs ...
Li Li - - 2011
Platelet-derived growth factor (PDGF) has been implicated in the pathogenesis of arterial atherosclerosis and venous neointimal hyperplasia. We examined the effects of PDGF isoforms on smooth muscle cells (SMCs) from arterial and venous origins in order to further understand the differential responsiveness of these vasculatures to proliferative stimuli. Serum-starved human ...
Roosenhoff Tamara P A - - 2010
The use of minimized extracorporeal circuits (MECC) in cardiac surgery is expanding. These circuits eliminate volume storage and bubble trap reservoirs to minimize the circuit. However, this may increase the risk of gaseous micro emboli (GME). To reduce this risk, a venous bubble trap was designed. This study was performed ...
Zamboni P - - 2010
Chronic cerebrospinal venous insufficiency (CCSVI) is a syndrome characterized by stenosies of the internal jugular and/or azygous veins (IJVs-AZ) with opening of collaterals and insufficient drainage proved by reduced cerebral blood flow and increased mean transit time in cerebral MRI perfusional study. The present review is aimed to give a ...
van Bemmelen Paul S - - 2011
To determine the prevalence of foot vein incompetence in a group of patients with chronic venous insufficiency and to assess the association of this, with venous ulceration located on the forefoot. A total of 20 consecutive patients (21 limbs) with active or healed venous ulceration was prospectively studied with duplex ...
Voisard Rainer - - 2010
The effectiveness of human saphenous vein grafting is limited by hyperplasia of the vessel wall. The current paper reports on a pulsed perfused venous human organ culture model (pp-venous HOC-model) with a Windkessel function. Saphenous vein grafts from 21 patients undergoing coronary bypass grafting were cultured either in venous or ...
Weir Bryce - - 2010
From the earliest pathological studies the perivenular localization of the demyelination in multiple sclerosis (MS) has been observed. It has recently been suggested that obstructions to venous flow or inadequate venous valves in the great veins in the neck, thorax and abdomen can cause damaging backflow into the cerebral and ...
Benabu Yves - - 2010
We present a case of a symptomatic venous aneurysm that developed in the drainage network of a deep-seated basal ganglia and thalamic arteriovenous malformation. The venous aneurysm was treated selectively with platinum coils using a venous approach.
Rinehart Sarah - - 2011
Computed tomographic (CT) coronary angiography provides a noninvasive method for coronary plaque detection and quantification, but data are limited on reproducibility of a quantitative evaluation. Intrarater and interrater reliability of a semiquantitative and highly standardized, fully quantitative approach was evaluated in 480 coronary segments in 30 patients. Quantitative vessel-wall and ...
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