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Subhawong Ty K TK 1 Department of Radiology, University of Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, - - 2014
OBJECTIVE. The purposes of this article are to discuss the technical considerations for performing quantitative diffusion-weighted MRI (DWI) with apparent diffusion coefficient (ADC) mapping, examine the role of DWI in whole-body MRI, and review how DWI with ADC mapping can serve as an adjunct to information gleaned from conventional MRI ...
Hayashi Hideki H Center for Frontier Medical Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan, - - 2014
Knowing the exact location of gastrointestinal tumors both preoperatively and intraoperatively is essential for planning and performing laparoscopic surgery. Different techniques have been introduced to ascertain tumor locations during surgery, but none of these are fully satisfactory at establishing the minimum margins for organ resection while retaining curability. A new, ...
Kikuta Kazutaka K Division of Orthopedic Surgery, National Cancer Center Hospital, 5-1-1, Chuo-ku, 104-0045, Tokyo, Japan, - - 2014
Myxofibrosarcoma (MFS) is characterized by a high frequency of local recurrence after surgery because of infiltrative growth of the tumor cells. This infiltrative growth creates a characteristic 'tail-like' pattern on magnetic resonance imaging (MRI), and it has been reported that this pattern is especially obvious on gadolinium-enhanced MRI (Gd MRI). ...
Ulmer Stephan S Stephan Ulmer, Neuroradiology, Medical Radiological Institute, 8001 Zurich, - - 2014
The goal in brain tumor surgery is to remove the maximum achievable amount of the tumor, preventing damage to "eloquent" brain regions as the amount of brain tumor resection is one of the prognostic factors for time to tumor progression and median survival. To achieve this goal, a variety of ...
Etchebehere Elba Cristina Sá de Camargo EC Division of Nuclear Medicine and PET/CT, Sirio Libanes Hospital, São Paulo, - - 2014
There are different metabolic imaging methods, various tracers, and emerging anatomic modalities to stage neuroendocrine tumor (NET). We aimed to compare NET lesion detectability among (99m)Tc-hydrazinonicotinamide (HYNIC)-octreotide (somatostatin receptor scintigraphy [SSRS]) SPECT/CT, (68)Ga-DOTATATE PET/CT, and whole-body diffusion-weighted MR imaging (WB DWI). Nineteen consecutive patients (34-77 y old; mean, 54.3 ± ...
Rosenberger Ina I Institute of Pharmaceutical Technology, Goethe University, Max-von-Laue-Str. 9, 60438 Frankfurt/Main, - - 2014
Iron oxide-containing magnetic nanoparticles (MNPs) have certain advantages over currently used contrast agents for tumor imaging by magnetic resonance imaging (MRI) as they offer the possibility of functionalization with ligands and tracers. Functionalized MNPs also may be used for targeted tumor therapy. In the current study nanoparticles (NPs) consisting of ...
Weiss Jamie M JM Division of Cardiology, Harbor-UCLA Medical Center, 1124 West Carson Street, RB2, Box 405, Torrance, CA, 90509, USA, - - 2014
The case demonstrates the use of echocardiography, cardiac computed tomography (CCT) and cardiac magnetic resonance imaging (CMRI) to determine the size, location, anatomic connection, perfusion and hemodynamic significance of a large tumor in the right atrium. The mass was surgically excised and pathology confirmed an ultimate diagnosis of an interatrial ...
Kilicarslan Rukiye R Department of Radiology, Bezmialem Vakif University School of Medicine, Vatan St, Aksaray, Istanbul, Turkey. Electronic address: - - 2014
To evaluate neurochemical alterations in Heschl's gyri and determine the most affected side in case of unilateral acoustic neuroma using magnetic resonance spectroscopy (MRS). Fifteen patients with unilateral acoustic neuroma were studied. Following routine cranial MRI sequences, MRS of Heschl's gyri on tumor and nontumor sides was obtained. MRS metabolite ...
Sun Lijun L Department of Radiology, Xijing Hospital, Fourth Military Medical University, 710032 Xi'an, China. Electronic address: - - 2014
To evaluate the initial clinical experience of computed tomography (CT) imaging-guided percutaneous cryotherapy of bladder cancer. This study was approved by the human subjects committee. Written informed consent was obtained from all patients. Thirty-two patients (22 males and 10 females; mean age, 62.7 years) with muscle-invasive bladder cancer were treated ...
Lou X X Department of Radiology, Chinese PLA (Peoples Liberation Army) General Hospital, 28 Fuxing Road, 100853, Beijing, China, - - 2014
Ganglioglioma is an uncommon intracranial disorder. The purpose of our study was to describe the different MR characteristics between supratentorial and infratentorial gangliogliomas and to evaluate the diagnostic value of MR imaging for the disorder. The MR images of 33 patients with intracranial gangliogliomas from July 2007 to November 2012 ...
Spadea Maria Francesca MF Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy. Electronic address: - - 2014
To obtain a contrasted image of the tumor region during the setup for proton therapy in lung patients, by using proton radiography and x-ray computed tomography (CT) prior knowledge. Six lung cancer patients' CT scans were preprocessed by masking out the gross tumor volume (GTV), and digitally reconstructed radiographs along ...
Huang Shih-Ying SY Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, 94143-0946, USA, - - 2014
Iodine-131-m-iodobenzylguanidine ([(131)I]mIBG)-targeted radionuclide therapy (TRT) is a standard treatment for recurrent or refractory neuroblastoma with response rates of 30-40 %. The aim of this study is to demonstrate patient-specific dosimetry using quantitative [(124)I]mIBG positron emission tomography/X-ray computed tomography (PET/CT) imaging with a GEometry ANd Tracking 4 (Geant4)-based Monte Carlo method ...
Ogawa Satoshi S Department of Gastroenterology and Hepatology, Kobe City Medical Center General Hospital, Kobe, - - 2014
Gastrinomas mainly occur in the duodenum and pancreas. Primary hepatic gastrinoma is rare and difficult to diagnose because the liver is a frequent site of metastatic gastrinomas. Clinical factors were assessed in a 28-year old man with diarrhea and heartburn who was hospitalized for recurrent duodenal ulcers. Abdominal ultrasound, endoscopic ...
Lin Bon-Jour BJ Department of Neurological - - 2014
Object This study investigated the specific preoperative MRI features of patients with intracranial meningiomas that correlate with pathological grade and provide appropriate preoperative planning. Methods From 2006 to 2012, 120 patients (36 men and 84 women, age range 20-89 years) with newly diagnosed symptomatic intracranial meningiomas undergoing resection were retrospectively ...
Bérczi Viktor - - 2014
We report the palliative embolization and functional imaging follow-up of a recurrent shoulder plasmacytoma. The multiple myeloma patient complained of severe pain and discomfort, while he could not tolerate further chemotherapy. The left shoulder lesion had earlier received a high dose of irradiation. Thus, the well-vascularized lesion was embolized via ...
Dollinger Marco M Department of Radiology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93042 Regensburg, Germany.. Electronic address: - - 2014
To describe findings on contrast-enhanced computed tomography (CT) images of malignant hepatic tumors 24-72 hours after percutaneous ablation by irreversible electroporation (IRE) and at midterm follow-up. Retrospective analysis of 52 malignant liver tumors-30 primary hepatic tumors and 22 hepatic metastases-in 34 patients (28 men and 6 women, mean age 64 ...
Koob M M Department of Imaging 2, Pediatric Radiology, Hautepierre Hospital, Strasbourg University Hospital, 1, avenue Molière, 67098 Strasbourg cedex, France; ICube laboratory, FMT, UMR 7357/Strasbourg University CNRS, 67098 Strasbourg, France. Electronic address: - - 2014
Brain tumors are the second leading cause of cancer in children. Primary tumors predominate and are of very varied histological types. Their prognosis and treatment depend on the histological type and grade. The diagnostic approach to these includes analysis of the site of the lesion and appearances on computed tomography ...
Prabhu Sujit S MD Anderson Cancer - - 2014
Surgery for tumors in eloquent brain faces immense challenges when attempting to maximize resection and avoid neurological deficits. Magnetic resonance imaging (MRI), diffusion tensor imaging, and/or functional MRI were performed on 3 patients preoperatively for the purposes of tumor resection by the use of neuronavigation. The DAT was registered to ...
Nelson Sarah J SJ University of California San - - 2014
The purpose of this study was to use ex vivo NMR spectroscopy of image guided tissue samples in order to characterize the metabolic signatures of gliomas and to determine which in vivo parameters are likely to be of interest for directing treatment, evaluating response and predicting outcome. A total of ...
Zhao Shu Hui SH Department of Radiology, Jinshan Hospital, Shanghai Medical College, Fudan University, Shanghai, - - 2014
To investigate the spectrum of MRI appearances of ovarian serous borderline tumor (SBT). Following ethics approval, 31 patients with 51 histologically proven ovarian SBTs underwent preoperative MRI. Images were evaluated, by two observers for the location, shape, size, internal architecture, signal intensity, and extent or stage of the tumors. The ...
Hirata Kenji K Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, University of California Los Angeles, Los Angeles, California, United States of - - 2014
18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)-computed tomography (CT) has been an essential modality in oncology. We propose a semi-automated algorithm to objectively determine liver standardized uptake value (SUV), which is used as a threshold for tumor delineation. A large spherical volume of interest (VOI) was placed manually to roughly enclose ...
Jolepalem Prashant P Department of Diagnostic Radiology and Molecular Imaging, Oakland University, William Beaumont School of Medicine and Health System, MI, - - 2014
To investigate the effects of ambient glucose on quantitative analysis of hepatic tumors on 2-deoxy-2-((18)F)-fluoro-D-glucose ((18)FDG) positron emission tomography (PET) and to establish a method for glucose correction. Eighty-six patients with hepatic lesions identified on (18)FDG PET/computed tomography (CT) were analyzed. The serum glucose level (Glc) was recorded prior to ...
Pavithran K K Department of Medical Oncology, Amrita Institute of Medical Sciences and Research Centre, Cochin, Kerala, - - 2013
Inflammatory myofibroblastic tumor (IMT) is a rare neoplasm, most commonly seen in children and adolescents. It can occur in nearly every part of the body. Imaging properties and the clinical presentation of IMT can mimic malignant process. A 41-year-old female presented with cough of 3 months duration. Chest X-ray showed ...
Aggarwal Reena R Department of Nuclear Medicine, Royal Free Hospital NHS Trust, London NW32QG, United - - 2013
We present a case report where Tc-99m sulfur colloid single-photon emission computed tomography (SPECT)/computed tomography (CT) scan was useful in characterizing a soft tissue abdominal mass and helped with patient management. A 63-year-old male with no previous history of trauma had an incidental finding of a soft tissue nodule adjacent ...
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 MR Cambridge Institute for Medical Research and Department of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke's Hospital, Cambridge CB2 0XY, United - - 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 F Institute of Radiology, Second University of Naples, Piazza Miraglia 2, Naples, Italy. - - 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 ...
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