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Bezuidenhout Abraham Fourie AF Division of Radiodiagnosis, Department of Medical Imaging and Clinical Oncology, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 19179, Tygerberg, 7505, South Africa, - - 2014
The association of a lumbosacral transitional vertebra with accelerated degeneration of the disc above has been described. Lumbosacral transitional vertebrae have also been reported as a cause of extraforaminal entrapment of the L5 nerve root between the transverse segment of the transitional vertebra and the sacral ala optimally demonstrated by ...
Yıldız M E ME Department of Radiology, Acibadem University School of Medicine, Acibadem Kozyatagi Hastanesi Inonu cd. Okur sk. Kozyatagi, Istanbul, Turkey, - - 2014
Diagnosis of cortical vein thrombosis (CVT) on the basis of clot hyperintensity on diffusion-weighted imaging (DWI) has been reported as limited. Our aim was to evaluate different DWI findings of CVT either in isolated form or in combination with sinus thrombosis. In this review-board-approved study, patients with the diagnosis of ...
Bron Esther E EE Departments of Medical Informatics and Radiology, Biomedical Imaging Group Rotterdam, Erasmus MC - University Medical Center Rotterdam, the - - 2014
Because hypoperfusion of brain tissue precedes atrophy in dementia, the detection of dementia may be advanced by the use of perfusion information. Such information can be obtained noninvasively with arterial spin labeling (ASL), a relatively new MR technique quantifying cerebral blood flow (CBF). Using ASL and structural MRI, we evaluated ...
Sun Shao-Long SL Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, - - 2014
PANCREATIC tuberculosis (TB) is a rare disease and its diagnosis is difficult because of the lack of specific clinical manifestations. Computed tomography (CT) and magnetic resonance imaging (MRI) have some diagnostic values in this disease, but it is easy to misdiagnose pancreatic TB as a pancreatic tumor.1 In this article, ...
Tse R R From the Department of Radiology (J.N.N., R.S.L., G.E.I.), and the Division of Plastic Surgery, Department of Surgery (R.T., K.A.K.-W.), the Seattle Children's Hospital, University of Washington, Seattle, - - 2014
Although most infants with brachial plexus palsy recover function spontaneously, approximately 10-30% benefit from surgical treatment. Pre-operative screening for nerve root avulsions is helpful in planning reconstruction. Our aim was to compare the diagnostic value of CT myelography, MR myelography, and both against a surgical criterion standard for detection of ...
Tedeschi Gioacchino G From the I Division of Neurology (G.T., A.G.), Second University of Naples; MRI Center "SUN-FISM" (G.T., A.G.), Second University of Naples and Neurological Institute for Diagnosis and Care "Hermitage Capodimonte," Italy; and the Department of Radiology and Nuclear Medicine (F.B.), VU University Hospital, Amsterdam, the - - 2014
Cognitive deficits (CD) affect a large proportion of adult patients with multiple sclerosis (MS), even at the early clinical stages of the disease.(1) With the application of advanced MRI techniques, it has become possible to investigate structural and functional correlates of CD in adult MS.
Reinbacher Knut E KE Department of Oromaxillofacial Surgery (Head: Univ. Prof. Dr. Kärcher Hans), Medical University Graz, Auenbruggerplatz 5, 8036 Graz, Austria. Electronic address: - - 2014
Intraorbital tumours are often undetected for a long period and may lead to compression of the optic nerve and loss of vision. Although CT, MRI's and ultrasound can help in determining the probable diagnosis, most orbital tumours are only diagnosed by surgical biopsy. In intraconal lesions this may prove especially ...
Darrieutort-Laffite Christelle C Service de rhumatologie, Hôtel-Dieu, 1, place Alexis-Ricordeau, 44093 Nantes cedex, - - 2014
Ultrasonography of the bones and joints has gained considerable ground in the field of rheumatology over the past decade and is now used in everyday practice both for diagnostic purposes and to guide local injections. However, the use of ultrasonography is virtually confined to the peripheral joints, whereas spinal diseases ...
Roig Eulalia Serés ES Laboratory of Functional and Metabolic Imaging LIFMET/EPFL, Lausanne, - - 2014
Carbon-13 magnetic resonance spectroscopy ((13) C-MRS) is challenging because of the inherent low sensitivity of (13) C detection and the need for radiofrequency transmission at the (1) H frequency while receiving the (13) C signal, the latter requiring electrical decoupling of the (13) C and (1) H radiofrequency channels. In ...
Lapegue F F Department of Radiology, CHU de Toulouse-Purpan, bâtiment Putois, place du Dr-Baylac, TSA 40031, 31059 Toulouse cedex 9, France; Polyclinique Le Languedoc, avenue de la Côte-des-Roses, 11100 Narbonne, France. Electronic address: - - 2014
Ultrasound examination of the brachial plexus, although at first sight difficult, is perfectly feasible with fairly rapid practical and theoretical training. The roots are accurately identified due to the shape (a single tubercle) of the transverse process of C7 in the paravertebral space, and the superficial position of C5 in ...
Camarillo Matthew - - 2014
Isolated popliteomeniscal fascicle tears are often unrecognized and misdiagnosed. Patients typically have vague symptoms and often-normal magnetic resonance imaging and physical examination findings. Isolated injuries are often misdiagnosed and mistreated, leading to delayed surgical treatment. Unrecognized tears can lead to continued disability, lateral meniscus tears, and chondral lesions. Appropriate diagnosis ...
Xiong Gang G Department of Chemistry, Tianjin University, Tianjin, 300072, China. - - 2014
Triple core-shell structures in the Cu24Gd6 and Cu24Dy6 clusters were first observed and structurally characterized. The magnetic investigations reveal that Cu24Gd6 possesses the significant magnetic entropy change (-ΔSm) of 21.2 J kg(-1) K(-1) for ΔH = 7 T, and a slow magnetization relaxation is observed in Cu24Dy6.
Ota Miho M Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan. Electronic address: - - 2014
Arterial spin labeling (ASL) magnetic resonance imaging (MRI) is a novel noninvasive technique that can measure regional cerebral blood flow (rCBF). To our knowledge, few studies have examined rCBF in patients with schizophrenia by ASL-MRI. Here we used pseudo-continuous ASL (pCASL) to examine the structural and functional imaging data in ...
Castañar Laura L Servei de Ressonància Magnètica Nuclear and Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Spain), Tel: - - 2014
A frequency-selective 1D (1) H nuclear magnetic resonance (NMR) experiment for the fast and sensitive determination of chemical-shift differences between overlapped resonances is proposed. The resulting fully homodecoupled (1) H NMR resonances appear as resolved 1D singlets without their typical J(HH) coupling constant multiplet structures. The high signal dispersion that is achieved ...
Lombardi Claudio M CM Department of Radiology-Studio Diagnostico Eco, Vimercate, - - 2014
To assess the feasibility and utility of contrast-enhanced micro-computed tomography (micro-CT) imaging for identifying structural anomalies in ex vivo first- and second-trimester human fetuses and isolated fetal hearts. Radiopaque iodine staining and micro-CT scanning protocols were developed in rodent studies and used to examine routinely fixed whole human fetuses (n = 7, ...
Lefranc Michel M 1Department of Neurosurgery, 2Department of Functional Exploration of the Central Nervous System, 3Department of Neurology, 4Department of Neuroradiology, 5Department of Anesthesiology, Amiens University Medical Center, Amiens, France 6Department of Neurosurgery, Rouen University Medical Center, Rouen, - - 2014
Subthalamic nucleus deep brain stimulation (STN-DBS) is an established treatment for Parkinson's disease. To characterize an optimized magnetic resonance imaging (MRI) sequence (high-resolution three-dimensional T2 star weighted angiography: HR 3-D SWAN) for direct STN targeting. Sequence distortions were measured using the Leksell stereotactic phantom. Eight consecutive candidates for STN-DBS underwent ...
D'Anna L L Multiple Sclerosis Center, Neurology Clinic, University of Udine Medical School, - - 2014
Radiologically-isolated syndrome (RIS) is a recently-defined entity, described as the incidental discovery of lesions suggestive of multiple sclerosis (MS) on brain magnetic resonance imaging (MRI) scans demonstrating dissemination in space (DIS) without symptom expression and with a normal neurological examination. Recent studies demonstrate that RIS patients present similar features of ...
Uzun Lokman L Department of ORL-Head and Neck Surgery, Goztepe Teaching and Training Hospital, Istanbul Medeniyet University, Dr. Erkin Cd. 34730, Kadikoy, Istanbul, Turkey. - - 2014
Agenesis of the sphenoid sinuses is a very rarely encountered anatomic variation. Findings on magnetic resonance imaging can mislead the radiologist and clinician. Therefore, the gold standard for diagnosis is computed tomography (CT) of the paranasal sinuses. We present the case of a 28-year-old man who was admitted to our ...
Will Susanne S Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany, - - 2014
The aim of our study was to enable automatic volumetry of the entire kidneys as well as their internal structures (cortex, medulla, and pelvis) from native magnetic resonance imaging (MRI) data sets. Segmentation of the entire kidneys and differentiation of their internal structures were performed in 12 healthy volunteers based ...
Inoue Satoshi S Department of Neurosurgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, - - 2014
The aim of this study was (1) to assess the diagnostic accuracy of 320-detector row computed tomography (CT) for paraclinoid and intracavernous aneurysms, and (2) to investigate whether this method provides sufficient information for surgery. A total of 14 patients with 16 unruptured proximal ICA aneurysms underwent three-dimensional CT angiography ...
Belcastro Vincenzo V From the Departments of Neurosciences (V.B.) and Neonatology (P.B., R.B., M.B.), S. Anna Hospital, Como, - - 2014
A full-term 9-day-old girl presented with fever, irritability, and seizures. The routine CSF examination, cranial ultrasound, and laboratory tests were normal. Brain MRI showed diffuse white matter abnormality (figure). Human parechovirus (HPeV) type 3 was isolated in both CSF and blood. The neurodevelopmental outcome at 4 months is poor, and ...
Anwar Mekhail M Department of Radiation Oncology, University of California San Francisco, USA. Electronic address: - - 2014
To investigate the role of endorectal MR imaging and MR spectroscopic imaging in defining the contour of treatable intraprostatic tumor foci in prostate cancer, since targeted therapy requires accurate target volume definition. We retrospectively identified 20 patients with prostate cancer who underwent endorectal MR imaging and MR spectroscopic imaging prior ...
Hoffmann Rainer R University RWTH Aachen, Aachen, Germany. Electronic address: - - 2014
Contrast echocardiography improves accuracy and reduces interreader variability on left ventricular (LV) functional analyses in the setting of two-dimensional (2D) echocardiography. The need for contrast imaging using three-dimensional (3D) echocardiography is less defined. The aim of this multicenter study was to define the accuracy and interreader agreement of unenhanced and ...
Graf R R Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. - - 2014
An overview is given on advanced magnetic resonance strategies and techniques, both nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR), as applied to nanostructured soft matter. In addition, the combination of the two forms of spectroscopy to enhance signal intensity in NMR by means of dynamic nuclear polarization (DNP) ...
Perreault Sébastien S Division of Child Neurology, Department of Neurology, Lucile Packard Children's Hospital at Stanford, Stanford University, 750 Welch Road, Suite 317, Palo Alto, CA, 94304, USA, - - 2014
Magnetic resonance imaging (MRI) is routinely obtained in patients with central nervous system (CNS) tumors, but few studies have been conducted to evaluate this practice. We assessed the benefits of surveillance MRI and more specifically spine MRI in a contemporary cohort. We evaluated MRI results of children diagnosed with CNS ...
Lucaccini Eva E Dipartimento di Chimica "U. Schiff" and UdR INSTM, Universitá di Firenze, Via della Lastruccia 3-13, Sesto Fiorentino(FI), Italy. - - 2014
We present a spectroscopic and magnetic (both static and dynamic) characterization of two isostructural Dy and Er complexes evidencing that, despite the different types of magnetic anisotropy, the two molecules show similar slow relaxation of the magnetization in a static magnetic field.
Petrick Nicholas N Center for Devices and Radiological Health, U.S. Food and Drug Administration, WO62-4118, 10903 New Hampshire Avenue, Silver Spring, MD 20993-0002. Electronic address: - - 2014
To estimate and statistically compare the bias and variance of radiologists measuring the size of spherical and complex synthetic nodules. This study did not require the institutional review board approval. Six radiologists estimated the size of 10 synthetic nodules embedded within an anthropomorphic thorax phantom from computed tomography scans at 0.8- ...
Hale Amanda R AR From the Department of Sociology and Anthropology, North Carolina State University, Raleigh, North - - 2014
This study investigates the variation between craniofacial landmarks extracted from computed tomographic (CT) scans and those collected from direct digitization of dry skulls. Thirteen traditional craniofacial landmarks were obtained from each CT scan using the coordinate option in the software Aviso. These coordinates were then compared with the coordinates digitized ...
Zhou Pengli P Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, - - 2014
To evaluate the type of venous involvement in Chinese Budd-Chiari syndrome (BCS) patients and the relative diagnostic accuracy of the different imaging modalities. Using digital subtraction angiography (DSA) as a reference standard, color Doppler ultrasound (CDUS), computed tomography angiography (CTA), and magnetic resonance angiography (MRA) were performed on 338 patients ...
Luo Tong T Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of - - 2014
Accurate computed tomography (CT)-based reconstruction of coronary morphometry (diameters, length, bifurcation angles) is important for construction of patient-specific models to aid diagnosis and therapy. The objective of this study is to validate the accuracy of patient coronary artery lumen area obtained from CT images based on intravascular ultrasound (IVUS). Morphometric ...
Sharma Punit P Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, - - 2014
The purpose of this study is to evaluate the added value of single photon emission computed tomography-computed tomography (SPECT-CT) over planar scintigraphy, SPECT and CT alone for characterization of isolated skull lesions in bone scintigraphy (BS) in cancer patients. A total of 32 cancer patients (age: 39.5 ± 21.9; male: ...
Somashekar D D Departments of Radiology and Neurosurgery, University of Michigan Hospital, Ann Arbor, - - 2013
BACKGROUND AND PURPOSE:Despite recent improvements in perinatal care, the incidence of neonatal brachial plexus palsy remains relatively common. CT myelography is currently considered to be the optimal imaging technique for evaluating nerve root integrity. Recent improvements in MR imaging techniques have made it an attractive alternative to evaluate nerve root ...
Maurer M H MH Department of Diagnostic and Interventional Radiology, Charité University Medicine - - 2013
Purpose: To evaluate and compare the costs of MRI-guided and CT-guided cervical nerve root infiltration for the minimally invasive treatment of radicular neck pain. Materials and Methods: Between September 2009 and April 2012, 22 patients (9 men, 13 women; mean age: 48.2 years) underwent MRI-guided (1.0 Tesla, Panorama HFO, Philips) ...
Park Kang Min KM Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, - - 2013
: Isolated rotational vertigo is most often associated with disorders of the semicircular canals, vestibular nerve, brainstem, or cerebellum but rarely observed following a supratentorial stroke. A 64-year-old man developed sudden onset of vertigo and horizontal right-beating nystagmus with a torsional component in primary and eccentric gazes, unsteady gait, and ...
Safouris Apostolos - - 2013
A 35-year-old woman presented with a headache lasting 2 weeks and complained of recent diplopia. Neurologic examination showed limited left eye abduction. Initial brain CT scan was considered normal (figure, A). Brain MRI showed left sphenoiditis (figure, B). The patient was treated with amoxicillin/clavulanic acid and corticosteroids with rapid symptom ...
Zheng Junying - - 2013
-There is currently no therapy proven to attenuate left ventricular (LV) dilatation and dysfunction in the volume overload induced by isolated mitral regurgitation (MR). To better understand molecular signatures underlying isolated MR, we performed LV gene expression analyses and overlaid regulated genes into Ingenuity Pathway Analysis in patients with isolated ...
Liu S C - - 2013
To examine the anatomical features of the anterior opening of the vidian canal using three-dimensional (3D) computed tomography (CT) images of the bone. We reviewed 62 patients who had undergone bilateral vidian neurectomies. One hundred and twenty-four vidian canals and their surrounding anatomies were analyzed. 3D images were reconstructed using ...
Has Recep - - 2013
Prenatally diagnosed thrombosis of the torcular herophili is very rare, and it is sometimes misdisgnosed due to unfamiliarity. Sonography with color Doppler imaging is the key imaging modality for prenatal diagnosis of torcular herophili thrombosis. Typical prenatal sonographic findings include a well-defined triangular anechoic collection in the occipital region and ...
Sebastian Sunit - - 2013
This white paper describes gallbladder and biliary incidental findings found on CT and MRI. Recommendations for management are included. This represents the fourth of 4 such papers from the ACR Incidental Findings Committee II, which used a consensus method based on repeated reviews and revisions and a collective review and ...
Collins Mark S - - 2013
The femoral calcar is a constant anatomical structure within the proximal femur representing a condensation of bone trabeculae. It is our impression that a similar structure is present within the patella. The purpose of this retrospective study was to define the prevalence, appearance, location, and configuration of the patellar calcar ...
Göçmez Cüneyt - - 2013
The goal of this effort is to evaluate the anatomy of the foramen magnum (FM) using 3-dimensional computed tomography (3D CT), and determine whether or not the anatomical features of vascular structures and condylar foramen (CF) affect the types of FM.The CT angiography records of 101 patients (44 men and ...
Recio-Rodríguez Manuel - - 2013
Frontonasal dysplasia is an etiologically heterogeneous development alteration including a set of anomalies affecting the eyes, forehead, and nose as a result of a malformation of the frontonasal elevation. It could occur either in isolation or as part of a syndrome such as frontonasal dysplasia associated with periventricular heterotopia. Our ...
Ramirez Marc S - - 2013
The transient and nonrenewable signal from hyperpolarized metabolites necessitates extensive sequence optimization for encoding spatial, spectral, and dynamic information. In this work, we evaluate the utility of radial single-timepoint and cumulative spectroscopic MRI of hyperpolarized [1-(13) C] pyruvate and its metabolic products at 7 Tesla (T). Simulations of radial echo ...
Abele T A - - 2013
BACKGROUND AND PURPOSE:The craniopharyngeal canal is a rare, well-corticated defect through the midline of the sphenoid bone from the sellar floor to the anterosuperior nasopharyngeal roof. We reviewed a series of craniopharyngeal canals to determine a system of classification that might better our understanding of this entity, highlight the range ...
Yang Jiantao - - 2013
The authors described a modified pathological classification (PC) of brachial plexus injury (BPI) and its magnetic resonance (MR) imaging characteristics. The reliability and diagnostic accuracy of MR imaging for detecting nerve injury was discussed. Between 2006 and 2010, 86 patients with BPI were managed surgically in our department. Their preoperative ...
Harper Lorna - - 2013
Accurate and timely diagnosis of dementia is important to guide management and provide appropriate information and support to patients and families. Currently, with the exception of individuals with genetic mutations, postmortem examination of brain tissue remains the only definitive means of establishing diagnosis in most cases, however, structural neuroimaging, in ...
Clasen Stephan - - 2013
The purpose of the study was to retrospectively compare technique effectiveness of computed tomography (CT)-guided versus magnetic resonance (MR)-guided radiofrequency (RF) ablation of hepatocellular carcinoma (HCC). In 35 consecutive patients 53 CT-guided (n=29) or MR-guided (n=24) ablation procedures were performed in the treatment of 56 (CT: 29; MR: 27) HCC. ...
Chu Linda C - - 2013
OBJECTIVE. CT is the primary imaging modality used after aortic root repair. Distinction of normal findings from postoperative complications is imperative and requires optimization of acquisition parameters and interpretation with advanced postprocessing tools. CONCLUSION. After aortic root surgery, findings can be categorized as complications within the aorta, complications outside the ...
Li Peng - - 2013
Magnetic separation provides a rapid and efficient means of isolating biomaterials from complex mixtures based on their adsorption on superparamagnetic (SPM) beads. Flow enhanced non-linear magnetophoresis (FNLM) is a high-resolution mode of separation in which hydrodynamic and magnetic fields are controlled with micron resolution to isolate SPM beads with specific ...
Yang Xiaopeng - - 2013
The present study developed a hybrid semi-automatic method to extract the liver from abdominal computerized tomography (CT) images. The proposed hybrid method consists of a customized fast-marching level-set method for detection of an optimal initial liver region from multiple seed points selected by the user and a threshold-based level-set method ...
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