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Alper Gulay - - 2012
Acute disseminated encephalomyelitis is an immune-mediated inflammatory and demyelinating disorder of the central nervous system, commonly preceded by an infection. It principally involves the white matter tracts of the cerebral hemispheres, brainstem, optic nerves, and spinal cord. Acute disseminated encephalomyelitis mainly affects children. Clinically, patients present with multifocal neurologic abnormalities ...
Zade Anand - - 2012
ABSTRACT: Extramedullary hematopoiesis refers to the presence of hematopoietic elements in locations other than the bone marrow medullary space. It occurs as a compensatory mechanism to impaired hematopoiesis resulting from a variety of pathological conditions. Because of the hazards of biopsy of a highly vascular hematopoietic mass, it is desirable ...
Clatworthy Menna R - - 2012
Acute kidney injury (AKI) is a common and important medical problem, affecting 10% of hospitalized patients, and it is associated with significant morbidity and mortality. The most frequent cause of AKI is acute tubular necrosis (ATN). Current imaging techniques and biomarkers do not allow ATN to be reliably differentiated from ...
Cialoni Danilo - - 2012
After repetitive deep dives, breath-hold divers are often affected by a syndrome characterized by typical symptoms such as cough, sensation of chest constriction, blood-striated expectorate (hemoptysis) and, rarely, an overt acute pulmonary edema syndrome, often together with various degrees of dyspnea. The aim of this work is an epidemiological investigation ...
Corr Peter - - 2012
The CT and MR findings of a patient with acute ethylene glycol poisoning are presented. Basal ganglia hemorrhagic infarction especially involving the putamen was detected. The differential diagnosis includes other toxic and hypoxic encephalopathies.
Chin Anne S - - 2012
Acute aortic syndrome refers to a spectrum of acute life-threatening aortic abnormalities requiring prompt recognition and treatment. Although underlying pathologies are diverse, presenting signs and symptoms are often indistinguishable clinically, underscoring the role of imaging to make the correct diagnosis. Computed tomography (CT) angiography, a safe and accessible imaging modality, ...
Badea Radu - - 2012
Intestinal malrotation is a rare pathological situation consisting of non-rotation or incomplete rotation of the primitive intestine. Due to the abnormal caecal position inflicted by malrotation, diagnosis of acute appendicitis is difficult. Ultrasonography (US) and Computed Tomography (CT) are relevant and complementary imaging techniques for establishing an otherwise elusive diagnosis. ...
Johnson Alisa K - - 2012
The purpose of this study is to evaluate the feasibility of ultrafast 3-T MRI in the evaluation of children with acute lower abdominal pain for the detection of appendicitis. Forty-two pediatric patients (30 girls and 12 boys; mean age, 11.5 years; age range, 4-17 years) with acute abdominal pain were ...
Unlüer Erden Erol - - 2012
Objective: The objective of this study was to evaluate the ability of emergency physicians (EPs) to diagnose early ischemic changes due acute ischemic stroke on cranial computed tomography (CT). Subjects and Methods: Three EPs interpreted CT scans obtained within 3 h of symptom onset in 50 patients with acute stroke. ...
Palmiere C - - 2012
The aim of this study was to compare the diagnostic value of post-mortem computed tomography angiography (PMCTA) to conventional, ante-mortem computed tomography (CT)-scan, CT-angiography (CTA) and digital subtraction angiography (DSA) in the detection and localization of the source of bleeding in cases of acute hemorrhage with fatal outcomes. The medical ...
Zaheer Atif - - 2012
Imaging of acute pancreatitis requires not only an understanding of the disease subtypes and the myriad of associated complications but also familiarity with the appropriate radiologic nomenclature as defined by the Atlanta symposium in 1992 and, more recently, by the Acute Pancreatitis Classification Working Group in 2008. The accurate description ...
Yang Ru - - 2012
To study MRI findings of abdominal wall edema (AWE) in acute pancreatitis as well as correlations between AWE and the severity of acute pancreatitis according to the MR severity index (MRSI) and the Acute Physiology And Chronic Healthy Evaluation III (APACHE III) scoring system. A total of 160 patients with ...
Sansgiri Rakhee Kisan - - 2012
Osteonecrosis is a potential complication of glucocorticoid chemotherapy in children surviving leukemia. Early diagnosis may allow effective interventions to minimize or ameliorate joint deterioration and obviate surgical intervention. We investigated the significance of MRI signal changes that precede the currently recognized "double-line" changes, which are considered pathognomic of osteonecrosis. We ...
Lee Elaine Yuen Phin - - 2012
Myeloid sarcoma (MS) is a rare extramedullary manifestation of acute myeloid leukemia that often presents during remission or disease relapse. With awareness of this clinical entity and the appropriate clinical history, MS can be detected despite its nonspecific radiologic features. This article highlights the utility of (18)F-FDG PET/CT, which has ...
Iacobellis Francesca - - 2012
To define the evolution of ischemic lesions with 7T magnetic resonance imaging (7T-MRI) in an animal model of acute colonic ischemia. Adult Sprague-Dawley rats were divided into two groups. Group I underwent inferior mesenteric artery (IMA) ligation followed by macroscopic observations and histological analysis. In group II, 7T-MRI was performed ...
Kilicarslan Rukiye - - 2012
Maple syrup urine disease (MSUD) is caused by a genetic defect of branched-chain amino acids, which include leucine, isoleucine and valine. We report diffusion-weighted imaging (DWI) findings in a newborn child with MSUD who presented with acute metabolic encephalopathic crisis. DWI (b = 1,000 s/mm(2)) showed high signal localized within the myelinated white ...
Salkade Parag R - - 2012
Acute lymphoblastic leukemia (ALL) is one of the most common malignancies of childhood, which is treated with high doses of methotrexate (MTX), as it crosses the blood-brain barrier and can be administered intravenously and via intrathecal route to eradicate leukemic cells from central nervous system (CNS). Additionally, high doses of ...
Mudumba Vijayasaradhi - - 2012
Osteochondromas of the vertebral column are rare tumors and constitute about 3-4% of all primary vertebral column tumors. We report a case of osteochondroma arising from C3 lamina presenting with acute quadriplegia following a trivial fall. Computed Tomography (CT) and Magnetic Resonance imaging (MRI) showed bony lesion arising from C3 ...
Tonolini Massimo - - 2012
Acute cholecystitis, which is usually associated with gallstones, is one of the commonest surgical causes of emergency hospital admission and may be further complicated by mural necrosis, perforation, and abscess formation. Magnetic resonance imaging (MRI) is increasingly available in the emergency setting. Technically improved equipment and faster acquisition protocols allow ...
Dundamadappa Sathish Kumar - - 2012
The increasing availability of magnetic resonance imaging (MRI) and the high sensitivity of MRI for soft tissue injury are resulting in the increased use of MRI for the evaluation of acute trauma. As cervical spine injury can have a devastating consequence, MRI is being more commonly used to evaluate cervical ...
Halpenny D - - 2012
The presence of the appendix within a femoral hernia is rare. It was first described by the French surgeon Jacques Croissant de Garengeot in 1731. This phenomenon accounts for 0.8-1% of all femoral hernias. Acute appendicitis occurring within a femoral hernia is even rarer and is difficult to diagnose pre-operatively. ...
Latini Manuel Facundo - - 2012
Topiramate is a sulfamate-substituted monosaccharide mainly used to treat epilepsy in children and adults and prophylaxis of migraine. This article describes a case of topiramate-induced acute transient myopia. The underlying mechanism and management is discussed. A 13-year-old female complained of sudden onset of blurred vision; 7 days prior to this ...
Chan T - - 2012
This is a case report of a young healthy adult who had acute cerebral infarcts after a short-term visit to high-altitude area. He developed acute onset of right-sided limb weakness and right hemianopia a few hours after arrival at an altitude of 3600 m by train. He was initially treated ...
Otto Randolph K - - 2012
Cardiac complications are a common feature of many muscular dystrophies. Although many modalities (eg, ultrasound) provide exceptional efficacy for early diagnosis, repeated monitoring, and therapeutic management, MRI has become the gold standard for anatomic and functional characterization. An increasing number of studies, especially in the dystrophinopathies, use strain imaging to ...
Tzifa Aphrodite - - 2012
Diagnostic cardiac catheterization procedures in children have been largely replaced by magnetic resonance (MR) imaging studies. However, when invasive catheterization is required, MR imaging has a significant role to play, when combined with invasive pressure measurements. Beyond the established reduction to the radiation dose involved, solely MR image-guided or MR ...
Chen Paul Ning-Chuan - - 2012
Tc-99m labeled RBC scintigraphy is commonly employed in the evaluation of acute gastrointestinal bleeding. On Tc-99m RBC studies gastrointestinal bleeding is seen as an initial focus of increased radiotracer activity that on subsequent images increases in intensity and changes position in a pattern that conforms to segments of bowel. We ...
Maffei Erica - - 2012
To compare Magnetic Resonance (MR) and Computed Tomography (CT) for the assessment of left (LV) and right (RV) ventricular functional parameters. Seventy nine patients underwent both Cardiac CT and Cardiac MR. Images were acquired using short axis (SAX) reconstructions for CT and 2D cine b-SSFP (balanced-steady state free precession) SAX ...
Markl Michael - - 2012
We report the comprehensive evaluation of the complex hemodynamics in a rare case of a pediatric patient after repair of congenital heart disease with multiple abnormalities including hypoplastic left heart, double outlet right ventricle, transposition of great arteries, ventricular septal defect, aortic coarctation, and total cavopulmonary connection. Based on a ...
Yamamura Jin - - 2012
PURPOSE: To investigate MRI of the fetal heart by way of a novel triggering method with the use of an MR-compatible cardiotocography (CTG) in an animal model. MATERIALS AND METHODS: Fetal cardiac MRI was performed on four pregnant ewes on a 1.5 Tesla (T) MR system. A CTG was rendered ...
Schroeder Marie A MA Cardiac Metabolism Research Group, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. - - 2012
Carnitine acetyltransferase catalyzes the reversible conversion of acetyl-coenzyme A (CoA) into acetylcarnitine. The aim of this study was to use the metabolic tracer hyperpolarized [2-(13)C]pyruvate with magnetic resonance spectroscopy to determine whether carnitine acetyltransferase facilitates carbohydrate oxidation in the heart. Ex vivo, following hyperpolarized [2-(13)C]pyruvate infusion, the [1-(13)C]acetylcarnitine resonance was ...
Guo Xiaolian - - 2012
Micro-CT is currently used in preclinical studies to provide anatomical information. But, there is also significant interest in using this technology to obtain functional information. We report here a new sampling strategy for 4D micro-CT for functional cardiac and pulmonary imaging. Rapid scanning of free-breathing mice is achieved with fast ...
Youssef George - - 2012
Cardiac sarcoidosis is a potentially fatal complication of sarcoidosis. The 1993 guidelines of the Ministry of Health, Labour, and Welfare (MHLW) of Japan have been used as the diagnostic gold standard and for comparison with imaging modalities. (18)F-FDG PET is not currently included in the guidelines. However, studies have shown ...
Puippe Gilbert D - - 2012
OBJECTIVE: To experimentally evaluate three different contrast injection protocols at thoraco-abdominal high-pitch dual-source computed tomography angiography (CTA), with regard to level and homogeneity of vascular enhancement at different cardiac outputs. MATERIALS AND METHODS: A uniphasic, a biphasic as well as an individually tailored contrast protocol were tested using a human ...
Xie Li-Xuan - - 2012
Cardiac lipomas are rare, mostly asymptomatic, and usually found incidentally during noncardiac examinations; however, they also can be symptomatic, depending on their size and location. Here, we report a case of surgically proved pericardial lipoma that was big and for which cardiac structures were substantially altered. The combination of CT ...
Seely Jean M - - 2012
Langerhans cell histiocytosis is a rare idiopathic disorder, characterized by the infiltration of 1 or more organs by large mononuclear cells. It can develop at any age. Pulmonary Langerhans cell histiocytosis (PLCH) is found more frequently and is better described in adults than in children. The PLCH findings on computed ...
Ikuta Naomi - - 2012
A 61-year-old man developed double vision subsequent to diarrheal illness. Mixed horizontal-vertical gaze palsy in both eyes, diminution of tendon reflexes, and gaze nystagmus were noted. His horizontal gaze palsy was accompanied by gaze nystagmus in the abducent direction, indicative of the disturbance in central nervous system. Neither limb weakness ...
D'Andrea Antonello - - 2012
Heart failure is a common syndrome with multiple causes. Cardiovascular magnetic resonance (CMR), using the available range of technique, is establishing itself as the gold standard noninvasive test for determining the underlying causes, and adding prognostic value, guiding therapy. Progress is continuing and rapid with promising new techniques such as ...
Baharvahdat Humain - - 2012
Intracranial hematoma rarely presents between two dural layers of pachimeninges. Here, we present a case of an interdural hematoma with similar appearance to an epidural hematoma. A 51-year-old man presented with a left temporal contusion following a motor vehicle accident. After craniotomy and contusion removal, the post-operative CT scan showed ...
Ko Sung Min - - 2012
Cardiac MDCT and cardiovascular MRI have become widely used for the evaluation of cardiovascular disease, including aortic valve disease. The purpose of this article is to present the cardiac MDCT and cardiovascular MRI findings of bicuspid aortic valve, its various complications, and other congenital cardiovascular malformations. Radiologists should be aware ...
Singh Paramdeep - - 2012
Acute cerebellitis is an inflammatory syndrome occurring most commonly in young children. It is caused by a variety of insults and is usually bilateral. Pseudotumoral hemicerebellitis is an exceptionally rare unilateral presentation of acute cerebellitis mimicking a tumor. Magnetic resonance imaging (MRI) reveals a diffusely swollen cerebellar hemisphere, but with ...
Laor T - - 2012
Diprosopus is the rarest form of conjoined twinning. This anomaly is characterised by craniofacial duplication to varying degrees and is associated with anomalies of the central nervous, cardiac, respiratory and musculoskeletal systems. We present an infant characterised as diprosopus tetraophthalmus who underwent post-mortem CT, which served as a highly useful ...
Verhaart Ingrid E C - - 2011
Lack of dystrophin results in skeletal muscle dystrophy and dilated cardiomyopathy in humans and animal models. To achieve a basic understanding of the natural development of cardiomyopathy in different dystrophinopathy mouse models, left and right ventricular heart function was assessed at different ages in three dystrophinopathy mouse models (mdx, mdx/utrn(+/-) ...
Zhang Tong - - 2011
To investigate the clinical significance of the application of 320-row CT angiography with low-dose prospective ECG-triggered target scanning in children with complex congenital heart disease (CHD), and to compare with the results from transthoracic echocardiography (TTE). 22 patients (male 12 cases, female 10 cases, average age: 18 months, range: 14 days-9 years, average ...
Utsunomiya Daisuke - - 2011
OBJECTIVES: To evaluate the effect of hybrid iterative reconstruction on qualitative and quantitative parameters at 256-slice cardiac CT. METHODS: Prospective cardiac CT images from 20 patients were analysed. Paired image sets were created using 3 reconstructions, i.e. filtered back projection (FBP) and moderate- and high-level iterative reconstructions. Quantitative parameters including ...
Siripornpitak Suvipaporn - - 2011
Cardiac imaging plays an important role in both congenital and acquired heart diseases. Cardiac computed tomography (angiography) cCT(A) is a non-invasive, increasingly popular, complementary modality to echocardiography in evaluation of congenital heart diseases (CHD) in children. Despite radiation exposure, cCT(A) is now commonly used for evaluation of the complex CHD, ...
Plank Fabian - - 2012
A 63-year old male with prior bioprosthetic mitral valve replacement and coronary artery bypass graft surgery presented with dyspnea. C-reactive protein and white blood cells were elevated and serial blood cultures were negative. Transesophageal echocardiography showed a paravalvular leak and a thickened anterior leaflet of unclear either infective or degenerative ...
Sigfridsson Andreas - - 2011
Time-resolved three-dimensional phase-contrast MRI is an important tool for physiological as well as clinical studies of blood flow in the heart and vessels. The application of the technique is, however, limited by the long scan times required. In this work, we investigate the feasibility of using spiral readouts to reduce ...
Odintsov Boris - - 2011
Noninvasive imaging procedures will be important for stem cell therapy for muscular dystrophy (MD). Mesoangioblasts regenerate muscle in animal models of muscular dystrophy. In this study, superparamagnetic iron oxide nanoparticles were used to visualize mesoangioblasts in vivo with MRI. Mesoangioblasts incorporated superparamagnetic iron oxide without transfection reagents, and cell differentiation ...
de Heer Linda M - - 2011
BACKGROUND: Knowledge of the dynamic changes of the aortic valve (AV) annulus may aid in the sizing and design of transcatheter valve prostheses. We assessed AV annulus distention in patients without AV disease and with severe AV stenosis (AS) using computed tomography (CT). METHODS: Electrocardiogram-gated multislice CT scans of 15 ...
Ghoshhajra Brian B - - 2011
BACKGROUND: Cardiac CT has the potential to offer comprehensive infarct detection by assessing regional wall motion abnormalities (RWMAs), rest perfusion defects (RPDs), and delayed contrast enhancement (DCE). However, the diagnostic accuracy of these techniques for the detection of myocardial infarction (MI) is unknown. METHODS: Forty-eight patients with intermediate-to-high probability for ...
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