Search Results
Results 1 - 50 of 1278
1 2 3 4 5 6 7 8 9 10 >
Müller Katharina K NeuroCure Clinical Research Center, Charité-Universitaetsmedizin Berlin, Charitéplatz 1, 10117, Berlin, - - 2014
Intra-lesional venous lumen shrinking detectable by MRI was suggested as an in vivo marker of inflammation in multiple sclerosis (MS). In our study mean diameters of pre-, post- and intra-lesional venous sections were determined in 49 patients with MS or clinically isolated syndrome (CIS) using a pixel-wise analysis on susceptibility-weighted ...
Dumont Clemens C Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medical Center Göttingen, Goettingen, Germany, - - 2014
To assess ligament lesions and subluxations of the carpometacarpal joints of the thumbs (CMC I) of asymptomatic volunteers and of patients with CMC I osteoarthritis using advanced magnetic resonance imaging (MRI). A total of 20 CMC I joints of 14 asymptomatic volunteers (6× both sides) and 28 CMC I joints ...
Guérin G G From the Department of Radiology (G.G., C.A.S., F.G., J.R.), Centre Hospitalier de l'Université de Montréal, Notre-Dame Hospital, Montreal, Quebec, Canada; and Laboratory of Interventional Neuroradiology (S.J., J.R.), Centre Hospitalier de l'Université de Montréal, Notre-Dame Hospital Research Centre, Montreal, Quebec, - - 2014
The repeatability of head CT interpretations may be studied in different contexts: in peer-review quality assurance interventions or in interobserver agreement studies. We assessed the agreement between double-blind reports of outpatient CT scans in a routine academic practice. Outpatient head CT scans (119 patients) were randomly selected to be read ...
Taketani Kaori K Human Health Science, Graduate School of Medicine, Kyoto - - 2014
Normal growth of the lateral ventricles (LVs) was characterized three-dimensionally using magnetic resonance imaging (MRI) data from 16 human fetuses at 16-25 weeks of gestation. The LV was differentiated into 4 primary regions, the anterior horn, central parts, posterior horn, and inferior horn, at 16 weeks of gestation. The LV ...
Zbýň S - - 2014
The presented evaluation of the relative uncertainty (δ'CCC) of the (choline + creatine)/citrate (CC/C) ratios can provide objective information about the quality and diagnostic value of prostate MR spectroscopic imaging data. This information can be combined with the numeric values of CC/C ratios and provides metabolic-quality maps enabling accurate cancer detection and ...
Muluneh Melaku M Bioengineering, University of Pennsylvania, 210 South 33rd Street, Suite 240 Skirkanich Hall, Philadelphia, PA, 19104-6321, - - 2014
On page 1078, D. Issadore and colleagues develop a new approach for isolating pathogens from messy clinical samples. Their platform, Track Etched Magnetic MicropOre (TEMPO), uses a microporous membrane coated with a soft magnetic film, creating enormous arrays of magnetic traps which allow the advantages of microfluidics to be preserved, ...
Shishido Hiroki H Division of Radiology and Nuclear Medicine, Sapporo Medical University - - 2014
Identification of the compression factor in cervical disc herniation and cervical spondylotic radioculopathy is often problematic when using two-dimensional magnetic resonance imaging (MRI). This prompted us to compare and examined three-dimensional sequences, coherent oscillatory state acquisition for the manipulation of image contrast (COSMIC), fast imaging employing steady state acquisition (FIESTA) ...
Chang Eric Y EY Department of Radiology, VA San Diego Healthcare System, San Diego, CA, 92161, USA, - - 2014
To determine the feasibility of using MR microscopy to characterize the root ligaments of the human knee at both ultra-high-field (11.7 T) and high-field (3 T) strengths. Seven fresh cadaveric knees were used for this study. Six specimens were imaged at 11.7 T and one specimen at 3 T using isotropic or ...
Kearney Hugh H 1 NMR Research Unit, Queen Square MS Centre, UCL Institute of Neurology, London WC1N 3BG, UK - - 2014
Neuropathological studies in multiple sclerosis have suggested that meningeal inflammation in the brain may be linked to disease progression. Inflammation in the spinal cord meninges has been associated with axonal loss, a pathological substrate for disability. Quantitative magnetic resonance imaging facilitates the investigation of spinal cord microstructure by approximating histopathological ...
Loizou C P CP Department of Computer Science, School of Sciences, Intercollege, 92, Ayias Phylaxeos Street, PO Box 51604, 3507 Limassol, Cyprus. Electronic address: - - 2014
This study investigates the application of texture analysis methods on brain T2-white matter lesions detected with magnetic resonance imaging (MRI) for the prognosis of future disability in subjects diagnosed with clinical isolated syndrome (CIS) of multiple sclerosis (MS). Brain lesions and normal appearing white matter (NAWM) from 38 symptomatic untreated ...
Fox Michael G MG From the *Department of Radiology and Medical Imaging, University of Virginia Health System; †Department of Radiology, University of Virginia Health System, Durham VA Medical Center; and ‡Department of Public Health Sciences, University of Virginia Health System, Charlottesville, - - 2014
Determine the incidence and amount of isolated pelvic fluid in males, stratified by age, on outpatient pelvic magnetic resonance imaging (MRI) examinations performed for lower back or extremity pain. After institutional review board approval, 161 pelvic MRIs performed on males for musculoskeletal or neurologic indications over an 18-month period were ...
Bezgin Tahir T Cardiology Clinic, Kartal Koşuyolu Heart & Research Hospital, Istanbul, - - 2014
Cor triatriatum sinister (CTS) is a rare congenital cardiac anomaly in which a fibromuscular membrane divides the atrium into two chambers. As CTS can occur as an isolated anomaly, it is frequently associated with other cardiac anomalies. Although symptoms are usually encountered in infancy, CTS may rarely present in adulthood ...
Lightly K K University Hospitals Bristol NHS Foundation Trust, Bristol, - - 2014
Pilot data from our unit suggested that MRI did not add information in isolated ventriculomegaly.(1) Therefore we aimed (i) to assess this in a larger series, and (ii) to examine the ability of modern ultrasound technologies to assess corpus callosum (CC) anomalies. A large UK tertiary referral unit. A retrospective ...
Oh Suseok S Department of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, - - 2014
The aim of this study was to verify the concordance of the measurement values when the same cephalometric analysis method was used for two-dimensional (2D) cephalometric radiography and three-dimensional computed tomography (3D CT), and to identify which 3D Frankfort horizontal (FH) plane was the most concordant with FH plane used ...
Torkzad Michael R MR Michael R Torkzad, 12 Reris Grange Close, Milford, Surrey, GU8 5FD, United - - 2014
To assess agreement between different forms of T2 weighted imaging (T2WI), and post-contrast T1WI in the depiction of fistula tracts, inflammation, and internal openings with that of a reference test. Thirty-nine consecutive prospective cases were enrolled. The following sequences were used for T2WI: 2D turbo-spin-echo (2D T2 TSE); 3D T2 ...
Shen Guohua G Department of Nuclear Medicine, West China Hospital of Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China, - - 2014
Published data on the diagnosis of bone metastases of prostate cancer are conflicting and heterogeneous. We performed a comprehensive meta-analysis to compare the diagnostic performance of choline-PET/CT, MRI, bone SPECT, and bone scintigraphy (BS) in detecting bone metastases in parents with prostate cancer. Pooled sensitivity, specificity, and diagnostic odds ratios ...
Odenthal A A From the School of Medicine (C.O.), University of Queensland, Brisbane, Queensland, Australia; and Department of Medical Imaging (A.C.), Royal Brisbane and Women's Hospital, Brisbane, Queensland, - - 2014
For patients presenting with clinically isolated syndrome, the treating clinician needs to advise the patient on the probability of conversion to clinically definite multiple sclerosis. MR imaging may give useful prognostic information, and there is large body of literature pertaining to the use of MR imaging in assessing patients presenting ...
Khawaja Ranish Deedar Ali RD From the *MGH Imaging, Division of Thoracic Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA; and †Philips Technologie GmbH, Innovative Technologies, Hamburg, - - 2014
The purpose of this study was to assess pulmonary lesion detection, diagnostic confidence, and noise reduction in sparse-sampled (SpS) computed tomographic (CT) data of submillisievert (SubmSv) chest CT reconstructed with iterative reconstruction technique (IRT). This Human Insurance Portability and Accountability-compliant, institutional review board-approved prospective study was performed using SpS-SubmSv IRT ...
Vincenti Vincenzo V *Department of Clinical and Experimental Medicine, Unit of Audiology and Pediatric Otorhinolaryngology, University of Parma; and †Department of Neuroradiology, Azienda Ospedaliero-Universitaria di Parma, Parma, - - 2014
A double internal auditory canal (IAC) is an uncommon malformation among temporal bone anomalies related to sensorineural hearing loss. This anomaly has been described as an isolated finding in otherwise normal patients, as well as a frequent feature in pontine tegmental cap dysplasia (PTCD). In both circumstances, the term duplication ...
Li Yiping Y Department of Neurological Surgery, University of Wisconsin Medical School, K4/834 CSC, 600 Highland Avenue, Madison, WI, 53792-0001, - - 2014
MRI is the gold standard for evaluating the relationship of disc material to soft tissue and neural structures. However, terminologies used to describe lumbar disc herniation and nerve root compression have always been a source of confusion. A clear understanding of lumbar disc terminology among clinicians, radiologists, and researchers is ...
Dzien Piotr P Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge, UK; Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge, - - 2014
Aldehyde dehydrogenase (ALDH2) is an emerging drug target for the treatment of heart disease, cocaine and alcohol dependence, and conditions caused by genetic polymorphisms in ALDH2. Noninvasive measurement of ALDH2 activity in vivo could inform the development of these drugs and accelerate their translation to the clinic. [1-(13) C, U-(2) ...
Park Min-Gyu MG Department of Neurology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Republic of - - 2014
Spontaneous isolated posterior inferior cerebellar artery dissection (PICAD) is a very rare cause of ischemic stroke. Clinical and radiologic features of ischemic type of isolated spontaneous PICAD are not well established. We consecutively enrolled patients who had spontaneous isolated PICAD confirmed by digital subtraction cerebral angiography. Clinical manifestation, magnetic resonance ...
Verma Sadhna S Department of Radiology, University of Cincinnati Medical Center, 234 Goodman Street, PO Box 670761, Cincinnati, OH 45267-0761, USA. Electronic address: - - 2014
A diagnosis of localized prostate cancer has always represented a clinical challenge. Nearly all prostate biopsies are performed via the transrectal ultrasound (TRUS)-guided technique, which, however, suffers from multiple limitations owing to its inability to accurately visualize and target suspicious lesions. Advances in prostate MR imaging allow for direct visualization ...
Fontana Carolina C Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91, Stockholm, - - 2014
In this study, a set of nuclear magnetic resonance experiments, some of them commonly used in the study of (13)C-labeled proteins and/or nucleic acids, is applied for the structure determination of uniformly (13)C-enriched carbohydrates. Two model substances were employed: one compound of low molecular weight [(UL-(13)C)-sucrose, 342 Da] and one compound ...
Kashou Nasser H NH BioMedical Imaging Lab, Wright State University, 3640 Colonel Glenn Hwy, 207 Russ Eng. Center, Dayton, OH, 45435, USA, - - 2014
 Standard two-dimension (2D) magnetic resonance imaging (MRI) clinical acquisition protocols utilize orthogonal plane images which contain slice gaps (SG). The purpose of this work is to introduce a novel interpolation method for these orthogonal plane MRI 2D datasets. Three goals can be achieved: (1) increasing the resolution based on a ...
Kostopoulou Athanasia A Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Vassilika Vouton, 71110 Heraklion, Greece. - - 2014
An elevated-temperature polyol-based colloidal-chemistry approach allows for the development of size-tunable (50 and 86 nm) assemblies of maghemite iso-oriented nanocrystals, with enhanced magnetization. (1)H-nuclear magnetic resonance (NMR) relaxometric experiments show that the ferrimagnetic cluster-like colloidal entities exhibit a remarkable enhancement (4-5 times) in transverse relaxivity when compared to that of ...
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 ...
Neves Frederico Sampaio - - 2014
The aim of this article was to describe imaging aspects of concrescence analyzed by three imaging modalities. A second molar joined together with a third molar was imaged using digital periapical radiography, cone beam computed tomography (CBCT) and micro-computed tomography (Micro-CT). On periapical radiograph, the mesial root of the third ...
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 ...
Wernick Morena Bernadette - - 2014
A 5-year-old, female golden eagle (Aquila chrysaetos) was admitted with tetraplegia that progressed to a nonambulatory, spastic tetraparesis after a few days of treatment. Clinical and radiologic examinations, including radiography, computed tomography scan, and myelography, were indicative of neoplasia involving a spinal nerve root. Postmortem magnetic resonance imaging and necropsy ...
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 ...
1 2 3 4 5 6 7 8 9 10 >