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Lim Chiow Teen CT Department of Respiratory and Critical Care Medicine, Khoo Teck Puat Hospital Singapore, - - 2014
Pulmonary alveolar microlithiasis is a rare, inherited pulmonary disorder affecting young adults. Diagnosis and monitoring is important as it may progress to pulmonary fibrosis and respiratory failure. No effective treatment has been found to date.
Amano Masashi - - 2013
We report a case of a 35-year-old woman who was diagnosed with a giant coronary artery aneurysm (CAA) with a fistula and followed-up using the contrast-enhanced computed tomography scan and 2-dimensional transthoracic echocardiography. The diameter and volume cubic content of the giant CAA had increased linearly during the 12-year follow-up ...
Sugino Keishi K Department of Respiratory Medicine, Toho University Omori Medical Center Tokyo, - - 2013
A 75-year-old man was admitted to our hospital complaining of a 4-year history of persistent dry cough and progressive dyspnea on exertion. Chest computed tomography images revealed diffuse reticular opacities and traction bronchiectasis in the bilateral lower lobes and emphysema predominantly in the upper lobes. He was treated with inhaled ...
Nakanishi Koji - - 2013
Non-anastomotic graft rupture is a rare but critical complication after abdominal aortic aneurysm (AAA) repair. Therefore, identifying the rupture sites is important to perform endovascular stent grafting. A 78-year old man who had undergone Y-grafting for infrarenal AAA before 17 years was referred to our hospital with the complaints of ...
Tzeis Stylianos S Cardiology Department, Henry Dunant Hospital, Athens - - 2013
In the present case, we describe the abrupt transformation of intra-pulmonary vein activity from rapid firing to dissociated ectopic activity during sinus rhythm, as an easily identifiable, though rare to encounter, sign which documents the achievement of bidirectional block.
Leonard Sean - - 2013
Dynamic control of maternal blood flow to the placenta is critical for healthy pregnancy. In many tissues, microvasculature arteries control flow. The uterine/endometrial vascular bed changes during pregnancy include physiological remodeling of spiral arteries from constricted artery-like structures to dilated vein-like structures between gestation days (gd) 8 and 12 in ...
Kay Fernando Uliana - - 2013
The aim of the study was to compare the effects of different respiratory maneuvers in computed tomography pulmonary angiography for the diagnosis of pulmonary embolism (PE) on the contrast enhancement of pulmonary circulation and on the quality of lung window images. A retrospective analysis of 520 examinations, half obtained after ...
Xia Yang Y Division of Pulmonary and Critical Care Medicine, Johns Hopkins Asthma and Allergy Center, 5501 Hopkins Bayview Circle, Baltimore, MD 21224. - - 2014
Hypoxic pulmonary hypertension is characterized by increased vascular tone, altered vasoreactivity, and vascular remodeling, which are associated with alterations in Ca(2+) homeostasis in pulmonary arterial smooth muscle cells. We have previously shown that classical transient receptor potential 1 and 6 (TRPC1 and TRPC6) are upregulated in pulmonary arteries (PAs) of ...
Renne Julius - - 2013
Computed tomography pulmonary angiography (CTPA) is used most often in routine clinical practice for the assessment of a suspected pulmonary embolism. The diagnostic accuracy relies on sufficient contrast enhancement.Purpose: To evaluate whether image acquisition during shallow breathing can improve the image quality in patients with insufficient contrast enhancement during breath-hold ...
Horie Kenji - - 2013
Recently, transient inferior vena cava (IVC) filters have been employed to protect against pulmonary embolism (PE) in pregnant women with deep vein thrombosis. A 34-year-old primiparous Japanese woman with a history of myomectomy was diagnosed with deep vein thrombosis by ultrasound at 27 weeks of gestation. Unfractionated heparin was administered, ...
Ueda Yuichiro - - 2013
Azygos vein aneurysm is very rare and most cases are detected incidentally. We report a safe resection of azygos vein aneurysm by video-assisted thoracoscopic surgery (VATS) under preoperative evaluation of thrombus by multidetector computed tomography (MDCT). A 60-year old woman presented to our department due to a mediastinal mass revealed ...
Ou Hsin-You - - 2013
OBJECTIVE. Fibrosis leads to altered liver hemodynamics. The arterial enhancement fraction, which is defined as the ratio of hepatic arterial perfusion to the total hepatic perfusion, can provide noninvasive assessment of hepatic perfusion. The aim of this study was to show that the arterial enhancement fraction values correlate with histopathologic ...
Paramasivam Srinivasan S Hyman Newman Institute for Neurology and Neurosurgery, Centre for Endovascular Surgery, Roosevelt Hospital, 1000 Tenth Avenue, Suite 10 G, New York, 10019, United States. Electronic address: - - 2013
Onyx as an embolization agent for the management of vascular malformation is well established. We report our initial experience with dimethyl-sulphoxide (DMSO) compatible double lumen balloon catheters used for Onyx embolization. Between December 2011 and March 2013, we treated 22 patients aged between 1.5 to 70years with two types of DMSO ...
Fina Caroline - - 2013
Canine pulmonary eosinophilic granulomatosis is a rare inflammatory pulmonary disease characterized by formation of eosinophilic granulomas that tend to obliterate the normal pulmonary architecture. The purpose of this retrospective study was to describe the CT characteristics of confirmed idiopathic pulmonary eosinophilic granulomatosis in a group of dogs. Five dogs met ...
Liu Yihua Y Department of Cardiovascular Surgery and Heart Transplantation, University of Lorraine, Vandoeuvre-Les-Nancy, - - 2013
Background Thoracic endovascular aortic repair (TEVAR) has become the treatment of choice in the management of the aortic arch and descending aorta diseases. Thrombosis is a common reason for vascular graft failure, but there is no consensus on the anticoagulation management after placement of vascular graft. Case Description A 21-year-old patient with ...
van Amerongen M J - - 2013
MR angiography is proposed as a safer and less expensive alternative to the reference standard, DSA, in the follow-up of intracranial aneurysms treated with endovascular coil occlusion. We performed a systematic review and meta-analysis to evaluate the accuracy of TOF-MRA and contrast-enhanced MRA in detecting residual flow in the follow-up ...
Riolo Giovanna G Division of Respiratory and Critical Care Medicine, Queen's University Kingston, Ontario, - - 2013
A 47 year-old woman, on hemodialysis via an arteriovenous (AV) fistula, was assessed for severe dyspnea and presyncope secondary to pulmonary hypertension. Right heart catheterization confirmed a mean pulmonary arterial pressure of 85 mm Hg. She had a normal wedge pressure. Investigations revealed that the total high cardiac output AV ...
Ribeiro Henrique B - - 2013
We report two cases of high-risk aortic stenosis treated with the SAPIEN 3 valve. This is the first procedure performed with this type of valve through the transapical approach. This new balloon-expandable valve incorporates a lower profile cobalt-chromium stent and an additional outer skirt to enhance paravalvular sealing. The procedure ...
Hori Daijiro D Department of Cardiovascular Surgery, Fujigaoka Hospital, Showa University, Kanagawa, - - 2013
Rupture of a bronchial artery aneurysm occurs rarely and may mimic aortic dissection. A 78-year-old-man was admitted with sudden chest pain. Chest radiography showed widening of the mediastinum, suggestive of aortic dissection, but contrast-enhanced computed tomography revealed hemomediastinum and bronchial artery aneurysm. Although open surgery has been the first choice ...
Takayama Toshio - - 2013
Abdominal aortic aneurysm (AAA) is one of the leading causes of death in the United States. Approximately 80% of AAAs occur in the infrarenal abdominal aorta. Most are caused by a degenerative process in the aortic wall, and smoking is the risk factor most strongly associated with AAA. Contrast-enhanced computed ...
Chau Katherine H - - 2013
Thoracic aortic aneurysms (TAAs) are a prevalent and deadly disease that, without diagnosis and treatment, eventuates in life-threatening aortic dissection or rupture. While TAAs normally grow in an indolent manner, once a certain size (a "hinge point") is reached, the risk of dissection, rupture, and death increases dramatically. By virtue ...
Abdullah Layla - - 2013
This paper reports a case of a 22 years old young male who presented in emergency department with some non-specific symptoms such as abdominal pain, vomiting, chest heaviness and shortness of breath. Chest x-ray revealed a combined picture of pneumonia and congestive heart failure. Echocardiogram showed ventricular septal defect, aortic ...
Mineyko Aleksandra - - 2013
INTRODUCTION: Large/medium vessel vasculitis is an important etiology of childhood stroke. Early research suggests vessel wall enhancement on postcontrast MRI may be a marker of intracranial vasculitis yet no systematic descriptions of normal periarterial enhancement exist in the literature. The aim was to describe normal periarterial enhancement in the pediatric ...
Phillips Helen M - - 2013
AIMS: Anomalies of the arterial valves, principally bicuspid aortic valve (BAV), are the most common congenital anomalies. The cellular mechanisms that underlie arterial valve development are poorly understood. Whilst it is known that the valve leaflets derive from the outflow cushions, which are populated by cells derived from the endothelium ...
Ueyama Takeshi - - 2013
BACKGROUND: Ischemia suppresses action potentials (AP) by elevating interstitial K(+) and activating KATP channels, and alters cytosolic Ca(2+) transients (CaT) via metabolic inhibition. OBJECTIVE: This study tested the hypothesis that AP and CaT respond to ischemia with different spatiotemporal courses and patterns. METHODS: Thirty-four transmural wedges were isolated from canine ...
Meinel Felix G - - 2013
OBJECTIVES: To determine the influence of technical and demographic parameters on quantification of pulmonary perfused blood volume (PBV) in dual energy computed tomography pulmonary angiography (DE-CTPA). MATERIALS AND METHODS: Pulmonary PBV was quantified in 142 patients who underwent DE-CTPA for suspected pulmonary embolism but in whom no thoracic pathologies were ...
Cao Bing-Sheng - - 2013
Objectives- The purpose of this study was to describe the findings of juxtapleural pulmonary tuberculoma on contrast-enhanced sonography and investigate their correlation with histologic findings. Methods- From April 2008 to April 2012, 21 patients with biopsy or clinically proven juxtapleural pulmonary tuberculomas underwent contrast-enhanced sonography with an intravenous bolus injection ...
LaRocca Thomas J TJ Department of Integrative Physiology, University of Colorado, Boulder, CO 80309, - - 2013
Arterial aging, characterized by stiffening of large elastic arteries and the development of arterial endothelial dysfunction, increases cardiovascular disease (CVD) risk. We tested the hypothesis that spermidine, a nutrient associated with the anti-aging process autophagy, would improve arterial aging. Aortic pulse wave velocity (aPWV), a measure of arterial stiffness, was ...
Daneshi Mohammad - - 2013
We present a case of a biliary-arterial communication as a consequence of the placement of an internal-external biliary drainage catheter in a liver transplant patient diagnosed on contrast-enhanced ultrasound using a novel application by injecting microbubble contrast into the catheter tube. We postulate that this method may be sensitive in ...
Howard Adam Q - - 2013
Iliac artery endofibrosis is an uncommon condition, which should be considered in young athletes with exertional lower limb symptoms. Imaging often appears normal at rest, and the diagnosis can be missed if clinical assessment is inadequate. We report a successful case of entirely minimally invasive surgical treatment for iliac artery ...
Taimeh Ziad - - 2013
Left circumflex coronary artery anomalies are rare causes of cardiac symptoms, especially in the adult population. Herein we describe a case of a 40-year-old man presenting with stable angina who was found to have aneurysmal formation and fistulization of the left circumflex coronary artery to the coronary sinus. Contrast-enhanced multislice ...
Judd Eric - - 2013
We present the case of a 21-year-old man who developed a renal artery pseudoaneurysm following a 7-foot fall onto his back. He initially presented with gross hematuria, left flank pain, and back pain. He was observed in the hospital for 3 days and discharged. One week later, he was readmitted ...
Lucking Andrew J - - 2013
Using a clinical model of deep arterial injury, we assessed the ability of exogenous and endogenous tissue plasminogen activator (t-PA) to limit acute in situ thrombus formation. Ex vivo thrombus formation was assessed in the Badimon chamber at low and high shear rates in 2 double-blind randomized cross-over studies of ...
Asai Katsuyuki - - 2013
We report a rare case of a pulmonary vein stump thrombus detected by a contrast-enhanced computed tomography for transient syncope 2 days after upper division segmentectomy of the left lung for metastatic pulmonary tumor. The thrombus disappeared without embolic events after anticoagulation with intravenous heparin followed by oral warfarin. Considering this ...
Taylor Curtis R CR Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, - - 2013
Evidence indicates that cerebral blood flow is both increased and diminished in astronauts on return to Earth. Data from ground-based animal models simulating the effects of microgravity have shown that decrements in cerebral perfusion are associated with enhanced vasoconstriction and structural remodeling of cerebral arteries. Based on these results, the ...
Pignataro Giuseppe - - 2013
It has recently been hypothesized that a sub-lethal ischemic insult induced in one organ is able to protect from a harmful ischemia occurring in a different organ. Objective of this study is to identify new putative mechanisms of neuroprotection elicited by remote ischemic femoral postconditioning. A 50% reduction in the ...
Hashimoto Rintaro R Department of Diagnostic Radiology, National Cancer Center Central Hospital, Tokyo 104-0045, - - 2013
A 76-year-old woman with hepatitis C cirrhosis presented with tarry stools and hematemesis. An endoscopy demonstrated bleeding duodenal varices in the second portion of the duodenum. Contrast-enhanced computed tomography revealed markedly tortuous varices around the wall in the duodenum. Several afferent veins appeared to have developed, and the right ovarian ...
Sasaki Osamu - - 2013
Aortopulmonary artery fistula is uncommon, but the clinical outcome is often lethal. A 76-year-old man with a history of acute thoracic aortic dissection 6 years previously was admitted with dyspnea. A chest x-ray showed pleural effusion and pulmonary congestion. Transthoracic echocardiography revealed preserved systolic function, but continuous and abnormal flow from ...
Suzuki Hidenori - - 2013
Introduction: Matricellular protein (MCP) is a class of nonstructural and secreted extracellular matrix proteins that exert diverse functions, but its role in vascular smooth muscle contraction has not been investigated. Material and Methods: First, rat subarachnoid hemorrhage (SAH) models were produced by endovascular perforation and examined for tenascin-C (TNC) and ...
Suzuki Hidenori - - 2013
Introduction: It is still controversial if the selection of treatment modality (clip or coil) affects cerebral vasospasm development following aneurysmal subarachnoid hemorrhage (SAH). Materials and Methods: We enrolled 579 SAH patients in the Prospective Registry of Subarachnoid Aneurysms Treatment project, and these patients were treated either microsurgically or endovascularly within ...
Kodama Koichi - - 2013
We report a case of acute aortic dissection leading to compression of the left renal vein (LRV), thereby resulting in the nutcracker phenomenon. A 49-year-old previously healthy woman presented with intermittent gross hematuria and mild left flank pain of five days' duration. Laboratory examinations were within normal limits, except for ...
Kawashima Saki - - 2013
Background: Recent studies have shown that prolonged Th2-type immune inflammation in the lung induces pulmonary arterial remodeling, in part through the induction of resistin-like molecule α (RELMα) expression. However, the role of interleukin-25 (IL-25; which promotes this inflammation) in the development of the pulmonary arterial remodeling remains unknown. Methods: Ovalbumin ...
Weiss Robert M - - 2013
There are no rigorously confirmed effective medical therapies for calcific aortic stenosis. Hypercholesterolemic Ldlr (-/-) Apob (100/100) mice develop calcific aortic stenosis and valvular cardiomyopathy in old age. Osteoprotegerin (OPG) modulates calcification in bone and blood vessels, but its effect on valve calcification and valve function is not known. To ...
Green Daniel J - - 2013
Studies performed in animals and humans strongly suggest that exercise training and physical activity enhance arterial endothelial function. Studies of athletes have, however, been less definitive. We recruited a range of Olympic and world class athletes who participate in upper or lower limb predominant activities and examined brachial and superficial ...
Fukunaga Naoto - - 2013
A 77-year-old man with a history of hemodialysis was referred due to swelling of the right groin. Enhanced computed tomography (CT) showed extravasation of the medium from the superficial femoral artery (SFA) with surrounding large hematoma. Three-dimensional CT angiography revealed rupture of SFA just distal to common femoral artery with ...
Unosawa Satoshi - - 2013
We present a case of an aortocaval fistula (ACF) without bleeding because a clot was covering the fistula. A 60-year-old man was diagnosed as having a ruptured abdominal aortic aneurysm (AAA) and an aortocaval fistula, by enhanced computed tomography (CT). After the aneurysm had been opened, the fistula was detected, ...
Xiao Daliao - - 2013
Chronic hypoxia during gestation has profound adverse effects on the adaptation of uteroplacental circulation in pregnancy. Yet, the underlying mechanisms are not fully understood. The present study tested the hypothesis that enhanced production of reactive oxygen species (ROS) in uterine arteries plays a critical role in the maladaptation of uterine ...
Caro Colin Gerald - - 2013
Intimal hyperplasia (IH) is a leading cause of obstruction of vascular interventions, including arterial stents, bypass grafts and arteriovenous grafts and fistulae. Proposals to account for arterial stent-associated IH include wall damage, low wall shear stress (WSS), disturbed flow and, although not widely recognized, wall hypoxia. The common non-planarity of ...
Yoshikawa Naoki - - 2013
We analyzed the effect of serum and fibronectin on pulmonary transgene expression after intravenous injection of cationic liposome-plasmid DNA (pDNA) complex (lipoplex) in mice. 1,2-Dioleoyl-3-trimethylammonium-propane (DOTAP) methyl sulfate salt/cholesterol lipoplex was incubated with several serum components for 5 min at 37°C prior to injection. We analyzed pulmonary transgene expression and pulmonary ...
Wakui Noritaka - - 2013
A 55-year-old male was admitted in mid-April 2011 with a fever of >39°C and pain in the lower right abdomen. A medical examination revealed sepsis originating from colonic diverticulitis. Abdominal B-mode ultrasonography (US) performed on admission detected thrombi in the superior mesenteric vein and in the right branch of the ...
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