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Yang Xia X Department of Chemistry-Angstrom, Uppsala University, Uppsala, - - 2014
We report on a(19)F labeled injectable hyaluronic acid (HA) hydrogel that can be monitored by both (1)H and (19)F MR imaging. The HA based hydrogel formed via carbazone reaction can be obtained within a minute by simple mixing of HA-carbazate and HA-aldehyde derivatized polymers. (19)F contrast agent was linked to ...
Sun Zhen-Jun ZJ School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, - - 2014
This article describes a novel magnetically maneuverable capsule endoscope system with direction reference for image navigation. This direction reference was employed by utilizing a specific magnet configuration between a pair of external permanent magnets and a magnetic shell coated on the external capsule endoscope surface. A pair of customized Cartesian ...
Strauss Keith J KJ Department of Radiology, Cincinnati Children's Hospital Medical Center, MLC 5031, 3333 Burnet Ave., Cincinnati, OH, 45229-3026, USA, - - 2014
The management of image quality and radiation dose during pediatric CT scanning is dependent on how well one manages the radiographic techniques as a function of the type of exam, type of CT scanner, and patient size. The CT scanner's display of expected CT dose index volume (CTDIvol) after the ...
Remedios D D Department of Clinical Radiology, Northwick Park Hospital, Harrow, HA1 3UJ, UK. Electronic address: - - 2014
To audit the availability of imaging referral guidelines; vetting by radiologists of GP-initiated CT and MRI requests; and the achievement of appropriate imaging using retrospective assessment as a surrogate. A web-based questionnaire was distributed to imaging departments in the UK seeking awareness of guideline availability; the percentage of consecutive general ...
Noorda Yolanda H YH Image Sciences Instistute, University Medical Center Utrecht, Heidelberglaan 100, 3584CX Utrecht, The - - 2014
MR-HIFU is a new non-invasive treatment modality that can be used for palliation in patients with painful bone metastases. Since treatment strategies are mainly focused on the ablation of periosteal nerves, information on the presence and geometry of cortical bone influences the treatment strategy, both in determining the acoustic power ...
Vaishnav J Y JY Diagnostic X-Ray Systems Branch, Office of In Vitro Diagnostic Devices and Radiological Health, Center for Devices and Radiological Health, United States Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland - - 2014
Iterative reconstruction (IR) algorithms have the potential to reduce radiation dose in CT diagnostic imaging. As these algorithms become available on the market, a standardizable method of quantifying the dose reduction that a particular IR method can achieve would be valuable. Such a method would assist manufacturers in making promotional ...
Nguyen Jie C JC From the Department of Radiology and Orthopedics, University of Wisconsin Hospital and Clinics, 600 Highland Ave, E3/311, Madison, WI - - 2014
Magnetic resonance (MR) imaging is currently the modality of choice for detecting meniscal injuries and planning subsequent treatment. A thorough understanding of the imaging protocols, normal meniscal anatomy, surrounding anatomic structures, and anatomic variants and pitfalls is critical to ensure diagnostic accuracy and prevent unnecessary surgery. High-spatial-resolution imaging of the ...
Ogul Hayri H Department of Radiology, Medical Faculty, Ataturk University, Erzurum 25090, - - 2014
The purpose of this review was to demonstrate magnetic resonance (MR) arthrography findings of anatomy, variants, and pathologic conditions of the superior glenohumeral ligament (SGHL). This review also demonstrates the applicability of a new MR arthrography sequence in the anterosuperior portion of the glenohumeral joint. The SGHL is a very ...
Xu Yaoda Y Harvard University, 33 Kirkland Street, Room 780, Cambridge, MA 02138, USA. Electronic address: - - 2014
How the primate attentional control network interacts with posterior sensory regions to bias perception is not fully understood. Using magnetoencephalography (MEG) supplemented by functional magnetic resonance imaging (fMRI), a recent study reported that human inferior frontal junction (IFJ) could play a key role in biasing perception through neural synchrony with ...
Chen Yue Y College of Engineering, The University of Georgia, Athens, GA, - - 2014
Magnetic resonance imaging allows for visualizing detailed pathological and morphological changes of soft tissue. MR-conditional actuations have been widely investigated for development of image-guided and robot-assisted surgical devices under the Magnetic resonance imaging (MRI). This paper presents a simple design of MR-conditional stepper motor which can provide precise and high-torque ...
Merhof K K Division of Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty Bern, Bern, - - 2014
The diagnostic value of a contrast-enhanced T2-weighted FLAIR sequence (ceFLAIR) in brain imaging is unclear. That the number of brain lesions detected with ceFLAIR would be no greater than the sum of lesions detected with nFLAIR and ceT1W sequence. One hundred and twenty-nine animals (108 dogs and 21 cats) undergoing ...
Bak Nikolaj N Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Copenhagen University Hospital, Psychiatric Center Glostrup, Glostrup, - - 2014
Electroencephalography (EEGEEG ) and magnetic resonance imaging are two popular methodologies for brain research. While EEGEEG has a high temporal resolution, yet a low spatial resolution, MRIMRI has the complete opposite, a high spatial resolution, yet a low temporal resolution. Obviously therefore, researchers have been searching for ways combining the ...
Muccio Carmine Franco CF Unit of Neuroradiology, Department of Neuroscience, Hospital "Gaetano Rummo", Benevento, - - 2014
The aim of this paper is to illustrate the potential of magnetic resonance imaging (MRI) in diagnosis, differential diagnosis, treatment planning and evaluation of therapy effectiveness of pyogenic brain abscesses, through the use of morphological (or conventional) and functional (or advanced) sequences. Conventional MRI study is useful for the identification ...
Guo Sheng Li SL Department of Neurosurgery, PLA General Hospital, 28 Fuxing Rd, Beijing, 100853, - - 2014
To report the surgical technique and preliminary clinical results for the treatment of basilar invagination (BI) with atlantoaxial dislocation (AAD) by posterior C1-C2 pedicle screw and rod instrument. Between July 2012 and August 2013, 33 patients who had BI with AAD underwent surgery at our institution. Pre and postoperative three-dimensional ...
Faletti Riccardo - - 2014
Atrio-oesophageal fistula was first reported as a fatal complication of surgical endocardial and percutaneous endocardial radiofrequency ablation for atrial fibrillation, with an incidence after catheter ablation between 0.03% and 0.5%. Magnetic resonance angiography (MRA) was usually performed to obtain pre-procedural 3D images, used to merging into an electro-anatomical map, guiding ...
Gordon Jason S JS Research Assistant, Salivary Gland Center; Fourth Year Student, College of Dental Medicine, Columbia University, New York, - - 2014
Securing a clinical diagnosis for the masseteric intramuscular hemangioma is difficult. However, making a diagnosis can be facilitated with imaging, particularly magnetic resonance imaging, which serves as a key element in preoperative diagnosis.
Wu Xiaoshan X From the Departments of *Oral and Maxillofacial Surgery, and †Ophthalmology, Xiangya Hospital, Central South University, Hunan, - - 2014
Craniofacial trauma involving the pterygopalatine fossa region is reported to be rare. We present a case of a foreign body involving the orbit, maxillary sinus, and pterygopalatine fossa in a 4-year-old boy. The object was a reed shaft. Three-dimensional computed tomographic scans and magnetic resonance imaging were done to make ...
Dierickx Inge I Department of Obstetrics and Gynaecology, Sint-Lucas Ziekenhuis, Groenebriel 1, 9000 Gent, Belgium. Electronic address: - - 2014
Incarceration of the gravid uterus is a rare obstetric disorder that is often not recognized despite the ready availability of ultrasound. However, detailed imaging of the disturbed uterine and pelvic anatomy - from an obstetric point of view- is the key in reducing the potentially severe complications of this condition ...
Andeweg Caroline S CS Department of Surgery, Radboud University Nijmegen Medical Centre , Nijmegen , The - - 2014
Abstract Background. The lack of pathognomonic findings and the chance of complicated disease have resulted in the widespread use of additional imaging to diagnose acute colonic diverticulitis (ACD). The added value of additional imaging in the diagnostic workup of patients suspected of ACD is not well defined. Aims. The aim ...
Heismann Björn B Siemens Healthcare, Magnetic Resonance Imaging, Erlangen, Germany; Friedrich-Alexander-University of Erlangen-Nuremberg, Pattern Recognition Lab, Erlangen, - - 2014
Clinical MRI patients typically experience elevated acoustic noise levels of 80-110 dB(A). In this study, standard clinical turbo spin echo (TSE) and gradient echo (GRE) sequences were optimized for reduced acoustic noise at preserved diagnostic image quality. The physical sources of acoustic noise generation in an MRI gradient coil were ...
Maldjian Joseph A JA Advanced Neuroscience Imaging Research (ANSIR) Laboratory, Wake Forest School of Medicine, Winston-Salem, NC, 27157-1088, - - 2014
Currently available non-human primate templates typically require input of a skull-stripped brain for structural processing. This can be a manually intensive procedure, and considerably limits their utility. The purpose of this study was to create a vervet MRI population template, associated tissue probability maps (TPM), and a label atlas to ...
Petersen Steffen E SE NIHR Cardiovascular Biomedical Research Unit at Barts, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK - - 2014
An updated version of the European Association of Cardiovascular Imaging (EACVI) Core Syllabus for the European Cardiovascular Magnetic Resonance (CMR) Certification Exam is now available online. The syllabus lists key elements of knowledge in CMR. It represents a framework for the development of training curricula and provides expected knowledge-based learning ...
Widimsky Petr P Department of Cardiology, University Hospital Kralovske Vinohrady and the Third Faculty of Medicine, Charles University, Prague, Czech - - 2014
Aims: To assess the feasibility of direct catheter-based thrombectomy (d-CBT) performed jointly by cardiologists, neurologists and radiologists. Methods and results: Computed tomography (CT) was completed within <6 hours from onset of acute ischaemic stroke and excluded bleeding or developed ischaemia in 23 patients who fullfilled pre-specified entry criteria. The mean ...
Bertrand M M MM Laboratory of Experimental Anatomy Faculty of Medicine Montpellier-Nîmes, University Montpellier I, 30 rue Lunaret, 34090, Montpellier, France, - - 2014
To analyse pelvic autonomous innervation with magnetic resonance imaging (MRI) in comparison with anatomical macroscopic dissection on cadavers. Pelvic MRI was performed in eight adult human cadavers (five men and three women) using a total of four sequences each: T1, T1 fat saturation, T2, diffusion weighed. Images were analysed with ...
Wang Mengjiao M Department of Biomedical Engineering, School of Medicine, Tsinghua University, Room C249, Beijing, 100084, China, - - 2014
Fluoroscopy-guided hepatic intervention is limited by target visibility and respiratory movement. A feasible procedure for visibility enhancement of the key regions and targets in 2D fluoroscopic images is needed. A system was developed to improve targeting by integrating the forward projection of objects extracted from 3D cone beam CT (CBCT) ...
Lin Longting L From the Stroke Research Program, Hunter Medical Research Institute (L.L., A.B., C.R.L., M.W.P.) and Department of Neurology, John Hunter Hospital (C.R.L., M.W.P.), The University of Newcastle, Newcastle, New South Wales, - - 2014
Magnetic resonance perfusion (MRP) and computed tomographic perfusion (CTP) are being increasingly applied in acute stroke trials and clinical practice, yet the comparability of their perfusion values is not well validated. The aim of this study was to validate the comparability of CTP and MRP measures. A 3-step approach was ...
Furey Elizabeth E Abdominal Imaging, University Health Network, Mount Sinai and Women's College Hospital, 610 University Avenue, 3-957, Toronto, ON M5G 2M9, Canada. Electronic address: - - 2014
MR imaging plays a key role in staging evaluation of rectal cancer. The cornerstone of staging MR involves high-resolution T2 imaging orthogonal to the rectal lumen. The goals of MR staging are identification of patients who will benefit from neoadjuvant therapy prior to surgery to minimize postoperative recurrence and planning ...
Khaliq Amir A AA Department of Health Administration and Policy, University of Oklahoma Health Sciences Center, College of Public Health, Oklahoma City, Oklahoma. Electronic address: - - 2014
The purpose of this study was to better understand the availability and scope of imaging services at critical access hospitals (CAHs) throughout the United States. Recent American Hospital Association (AHA) annual survey data (containing 1,063 variables providing comprehensive information on organizational characteristics and availability of various services at 6,317 hospitals ...
Fritz Jan J Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, MD, 21287, USA, - - 2014
To evaluate the feasibility of magnetic resonance imaging (MRI)-guided vertebroplasty at 1.5 Tesla using augmented reality image overlay navigation. Twenty-five unilateral vertebroplasties [5 of 25 (20 %) thoracic, 20 of 25 (80 %) lumbar] were prospectively planned in 5 human cadavers. A clinical 1.5-Teslan MRI system was used. An augmented reality image ...
Thompson Eric M EM Department of Neurological Surgery, Oregon Health & Science University, Portland, - - 2014
Object Growing concern about potential adverse effects of ionizing radiation exposure during imaging studies is particularly relevant to the pediatric population. To decrease radiation exposure, many institutions use rapid-sequence (or quick-brain) MRI to evaluate cerebral ventricle size. There are obstacles, however, to widespread implementation of this imaging modality. The purpose ...
Gianoli Chiara C Heidelberg Ion Beam Therapy Center and Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, P.za Leonardo da Vinci 32, 20133 Milano, Italy. Electronic address: - - 2014
The purpose of this paper is to describe the experiments and methods that led to the geometrical interpretation of new-generation commercial PET-CT scanners, finalized to off-line PET-based treatment verification in ion beam therapy. Typically, the geometrical correspondence between the image domain (i.e., the dicom PET) and the sinogram domain (i.e., ...
Balachandran Ramya R *Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee; †Department of Otorhinolaryngology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma; and ‡Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, Tennessee, - - 2014
In this case report, we present a novel, minimally invasive image-guided approach to drainage of a petrous apex lesion. A 34-year-old man diagnosed with a petrous apex lesion consistent with cholesterol granuloma. The granuloma was large and caused mild compression of the brainstem with associated neurologic symptoms and seizure-like activity. ...
Ghosh Partha P Siemens Healthcare, Molecular Imaging, Chicago, - - 2014
Bone scintigraphy is widely used for the detection of skeletal metastases, particularly in prostate and breast cancer. Although planar imaging is widely used, single-photon emission computed tomography (SPECT) imaging has demonstrated higher sensitivity. SPECT/CT imaging with the integration of CT and SPECT gantries has enhanced bone scintigraphy by providing accurate ...
Kotha Vamshi Krishna VK Department of Radiology, Kamineni Institue of Medical Sciences, Andhra Pradesh, - - 2014
Although the clinical features of gluteus maximus contracture syndrome have been frequently described, imaging features have been seldom described. Most commonly reported cases are those following intramuscular injection in the gluteal region although congenital contracture is an uncommon but important occurrence. This condition has most often been reported in children ...
Qiu Long-Hua LH Department of Radiology, Huashan Hospital, Fudan University, Shanghai, - - 2014
To evaluate the use of endoglin-targeted paramagnetic liposomes in delineating the glioma margins using magnetic resonance (MR) angiogenesis imaging in a rat model. Four liposome preparations, including nontargeted paramagnetic liposomes (Gd-SLs), isotype control IgG-coupled paramagnetic liposomes (IgG-Gd-SLs), endoglin monoclonal antibody coupled paramagnetic liposomes (MAb-Gd-SLs), and biotinylated antibodies (Bio-MAb)/streptavidin-coupled paramagnetic liposomes ...
Bailey Dale L DL Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, - - 2014
This workshop was held a year after the initial positron emission tomography/magnetic resonance (PET/MR) workshop in Tübingen, which was recently reported in this journal. The discussions at the 2013 workshop, however, differed substantially from those of the initial workshop, attesting to the progress of combined PET/MR as an innovative imaging ...
Cömert Ela E Clinic of Otolaryngology, Ankara Oncology Education and Research Hospital, Ankara, - - 2014
The objective of this study is to demonstrate the surgical anatomy of the infralabyrinthine approach (ILA) and ways to prevent complications based on the complex anatomy. Cadaveric study. Ankara University Faculty of Medicine, Department of Anatomy. Temporal bones were selected from 30 sides of 20 fixed human cadaver heads. Computed ...
Cho Young Jun YJ *Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC ‡Siemens Healthcare Sector, Malvern, PA †Department of Radiology, Konyang University College of Medicine, Daejeon, Korea §Department of Clinical Radiology, University Hospitals LMU, Munich, Germany Departments of ∥Medical Radiology ¶Legal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, - - 2014
Iterative image reconstruction algorithms provide significant improvements over traditional filtered back projection in computed tomography (CT). Clinically available through recent advances in modern CT technology, iterative reconstruction enhances image quality through cyclical image calculation, suppressing image noise and artifacts, particularly blooming artifacts. The advantages of iterative reconstruction are apparent in ...
Shahidi Shoaleh S Biomaterial Research Centre, Department of Oral and Maxillofacial Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, - - 2014
Cone beam computed tomography (CBCT) is being widely used in recent years and has modernized the practice of oral and maxillofacial radiology by its inherent advantages, such as short scanning time, high resolution, and low dose of radiation to the patient. Sialography can be considered as the second step of ...
Adrien Judith J Head and Neck Surgery Department, Lariboisière Hospital, 2, rue AmbroiseParé, 75010, Paris, - - 2014
Background: Intra-osseous arachnoid cysts (ACs) are rare and difficult to diagnose. This study's objectives were to describe the clinical and radiological semiology of petrous and sphenoid ACs and to propose a specific management strategy. Methods: This was a retrospective, descriptive study of patients with ACs, which utilized computed tomography (CT), ...
Demirev Anastas A Department of Nuclear Medicine, University Hospital of Maastricht, Maastricht, The - - 2014
In diagnosing osteomyelitis (OM) both MRI and [18 F]FDG PET-CT proved to be accurate modalities. In anticipation of the advent of hybrid PET/MRI scanners we analyzed our patient group to give direction to future imaging strategies in patients with suspected OM. In this retrospective study all patients of a tertiary referral ...
McNulty J P JP School of Medicine and Medical Science, University College Dublin, Belfield, Dublin 4, Ireland, - - 2014
The purpose of this study was to investigate the diagnostic efficacy of a range of conventional magnetic resonance imaging (MRI) pulse sequences in the identification of internuclear ophthalmoplegia (INO) caused by medial longitudinal fasciculus (MLF) lesions in multiple sclerosis patients using a receiver-operating characteristic (ROC) methodology. A total of 15 ...
Fielden Samuel W SW Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, - - 2014
The major hurdle to widespread adoption of spiral trajectories has been their poor off-resonance performance. Here we present a self-correcting spiral k-space trajectory that avoids much of the well-known spiral blurring during data acquisition. In comparison with a traditional spiral-out trajectory, the spiral-in/out trajectory has improved off-resonance performance. By combining ...
Marras Ioannis I Aristotle University of Thessaloniki, Department of Informatics, Box 451, 54124 Thessaloniki, Greece. Electronic address: - - 2014
In this paper, a novel method for MRI volume segmentation based on region adaptive splitting and merging is proposed. The method, called Adaptive Geometric Split Merge (AGSM) segmentation, aims at finding complex geometrical shapes that consist of homogeneous geometrical 3D regions. In each volume splitting step, several splitting strategies are ...
Condette-Auliac Stéphanie S Department of Diagnostic and Therapeutic Neuroradiology, Hôpital Foch, Suresnes, - - 2014
The purpose of this review is to describe the diagnostic criteria for spinal cord arteriovenous shunts (SCAVSs) when using magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA), and to discuss the extent to which the different MRI and MRA sequences and technical parameters provide the information that is required ...
Sohn Beomseok B Department of Radiology and Research Institute of Radiological Science, Severance Children's Hospital, Yonsei University, College of Medicine, 50 Yonsei-ro, Seodaemun-gu, 120-752, Seoul, South - - 2014
Variable sequences can be used in MR enterography, and no consensus exists for the best protocol in children with Crohn disease. To compare the lesion detectability of various MR enterography sequences and to correlate the findings of these sequences with the Pediatric Crohn's Disease Activity Index (PCDAI) in children with ...
Kofler James M JM Department of Radiology, Mayo Clinic, Rochester, Minnesota. Electronic address: - - 2014
To reduce the radiation dose associated with CT scans, much attention is focused on CT protocol review and improvement. In fact, annual protocol reviews will soon be required for ACR CT accreditation. A major challenge in the protocol review process is determining whether a current protocol is optimal and deciding ...
Haidekker Mark A - - 2014
Computed tomography (CT) scanners are expensive imaging devices, often out of reach for small research groups. Designing and building a CT scanner from modular components is possible, and this article demonstrates that realization of a CT scanner from components is surprisingly easy. However, the high costs of a modular X-ray ...
Wu Qi Q Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, - - 2014
Dural ateriovenous fistula (DAVF) at the craniocervical junction is rare. We report a patient presenting with brainstem dysfunction as an uncommon onset. Brainstem lesion was suggested by magnetic resonance image study. Angiogram revealed a DAVF at a high cervical segment supplied by the meningeal branch of the right vertebral artery, ...
Kim Hae Yu HY Gamma Knife Center, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea. ; Department of Neurosurgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan, - - 2014
The aims of this study are to identify interpersonal differences in defining coordinates and to figure out the degree of distortion of the MRI and compare the accuracy between CT, 1.5-tesla (T) and 3.0T MRI. We compared coordinates in the CT images defined by 2 neurosurgeons. We also calculated the ...
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