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Krämer Jan Alexander JA Department of Clinical Radiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, - - 2014
The establishment of radiation-free examination procedures in the field of forensic age diagnostics in living persons is to be considered of special scientific interest so as to minimize necessary exposure to X-rays while facilitating additional assessment of skeletal development in all cases. To this end, the advantages offered by magnetic ...
Thornhill Rebecca E RE Department of Radiology, University of Ottawa, Ottawa, Ontario, Canada; Department of Medical Imaging, The Ottawa Hospital, 1053 Carling Ave, Ottawa, Ontario K1Y 4E9, Canada; Clinical Epidemiology Program/Methods Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Electronic address: - - 2014
Patients presenting with transient ischemic attack or stroke may have symptom-related lesions on acute computed tomography angiography (CTA) such as free-floating intraluminal thrombus (FFT). It is difficult to distinguish FFT from carotid plaque, but the distinction is critical as management differs. By contouring the shape of these vascular lesions ("virtual ...
Niemuth Jennifer N - - 2014
The North American river otter (Lontra canadensis) serves as an indicator species for environmental monitoring, is prized as a valuable furbearer, and is a popular display animal in zoologic collections. Nephrolithiasis has been reported as a frequent problem in other free-ranging and captive otter species but is rarely reported in ...
Pruthi Nupur N Department of Neurosurgery, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, Karnataka, India, - - 2014
The purpose of the study was to: (1) introduce a new CT-based parameter: free facet area and provide its normative data; (2) standardize the method of measuring isthmus width and height of the axis vertebra; (3) propose a new grading system to predict the difficulty in inserting transarticular and C2 ...
Littooij Annemieke S AS Department of Radiology and Nuclear Medicine, University Medical Centre Utrecht/Wilhelmina Children's Hospital, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands, - - 2014
To compare whole-body MRI, including diffusion-weighted imaging (whole-body MRI-DWI), with FDG-PET/CT for staging newly diagnosed paediatric lymphoma. A total of 36 children with newly diagnosed lymphoma prospectively underwent both whole-body MRI-DWI and FDG-PET/CT. Whole-body MRI-DWI was successfully performed in 33 patients (mean age 13.9 years). Whole-body MRI-DWI was independently evaluated by ...
Salaffi Fausto F Department of Rheumatology, Università Politecnica delle Marche, Jesi, Ancona, Italy. - - 2014
Bone erosions are the hallmark of joint damage in rheumatoid arthritis and both their detection and increase in number and/or in size are indicative of a poor outcome. To date, conventional radio-graphy is still the most common imaging tool adopted for detecting and scoring joint damage in daily clinical practice, ...
Rapoport Benjamin I BI Departments of 1Neurological Surgery, 2Neurology and Neuroscience, and 3Otolaryngology, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, - - 2014
Herniated intervertebral disc fragments rarely penetrate the thecal sac, and intracranial hypotension attributable to such penetrating fragments is even more unusual. We describe the first reported case of a cranial neuropathy due to intradural herniation of a disc fragment, in which intracranial hypotension from a resulting cerebrospinal fluid leak caused ...
Liu X X 1] State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou 510060, People's Republic of China [2] Department of Radiation Oncology, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou 510060, People's Republic of - - 2014
Background:We previously reported that magnetic resonance imaging evidence of cranial nerve invasion was an unfavourable prognostic factor in nasopharyngeal carcinoma. However, the prognostic value of this evidence in nasopharyngeal carcinoma treated with intensity-modulated radiotherapy remains unknown.Methods:We retrospectively analysed 749 nasopharyngeal carcinoma patients who underwent intensity-modulated radiotherapy.Results:Cranial nerve invasion was observed ...
Ingrisch Michael M From the *Josef Lissner Laboratory for Biomedical Imaging, Institute for Clinical Radiology, and †Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Munich, - - 2014
The purpose of this study was to investigate whether quantification of pulmonary perfusion from dynamic contrast-enhanced magnetic resonance imaging (DCE MRI) yields more reproducible results with data acquired during free breathing than with data from conventional breath-hold measurements. Ten healthy male volunteers underwent 2 imaging sessions at a clinical 1.5-T ...
Sallak Asmaa A From the Departments of *Nuclear Medicine, †Oncology, and ‡Hematology, Lausanne University Hospital; §Jules Gonin Eye Hospital; ¶Department of Pathology, Lausanne University Hospital, Lausanne; and ∥Department of Oncology, Sion Hospital, Sion, - - 2014
A 67-year-old woman was referred for staging of a mucosa-associated lymphoid tumor lymphoma involving the left conjunctiva. CT scan had shown paravertebral and pelvic masses, and a breast nodule. FDG PET/CT demonstrated moderately increased uptake in the left ocular conjunctiva and confirmed the paravertebral and pelvic masses and the breast ...
Lacalamita Marirosa Cristallo MC DIM-Interdisciplinary Department of Medicine, Section of Diagnostic Imaging, Aldo Moro University of Bari Medical School, Piazza Giulio Cesare 11, 70124, Bari, Italy, - - 2014
The purpose of this study was to evaluate the computed tomography (CT) signs of free and covered small-bowel perforations and the potential of CT in recognising the aetiology. Thirty-five patients with surgically proven small-bowel perforation were retrospectively evaluated. Fundamental signs (extraluminal air, solution of continuity) and secondary signs (thickening of ...
Berritto Daniela D Radiology Department, Seconda Università di Napoli, Piazza Miraglia 2, 80138, Naples, - - 2014
This study was undertaken to identify the early magnetic resonance imaging (MRI) findings of small bowel obstruction (SBO) and to analyse their evolution over time comparing them with histological findings. SBO was surgically induced in 10 rats divided into two groups monitored at predetermined time points until the 8th hour: ...
Wiggans M G MG HPB Surgery, Derriford Hospital, Plymouth Hospitals NHS Trust, Derriford Road, Plymouth, Devon, PL6 8DH, UK, - - 2014
The aims of this study were to measure the accuracy of computerised tomography (CT) and magnetic resonance imaging (MRI) scans in detecting colorectal liver metastases (CRLM) and to determine if patients who are staged with MRI in addition to CT have longer liver recurrence-free survival compared to those having CT ...
Schickler Robyn L RL Department of Obstetrics and Gynecology and the Divisions of Gynecologic Oncology and Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of South Florida Morsani College of Medicine and Tampa General Hospital, Tampa, - - 2014
Müllerian agenesis is a congenital malformation characterized by absence of the uterus, cervix, and upper vagina. A positive home pregnancy test in a woman with Müllerian agenesis mandated evaluation for malignancy. A woman with Müllerian agenesis presented with elevated levels of human chorionic gonadotropin (hCG), testosterone, and dehydroepiandrosterone sulfate. Pelvic ...
Jahodova A A Department of Pediatric Neurology, Charles University, Second Medical School, Motol University Hospital, V Uvalu 84, Prague 5 150 06, Czech Republic. Electronic address: - - 2014
Localization of the epileptogenic zone (EZ) is challenging in children with tuberous sclerosis complex (TSC). We sought to ascertain whether brain MRI could identify the EZ in TSC patients independent of the clinical and diagnostic data. Presurgical MRI's of 34 children with TSC who underwent epilepsy surgery at Miami Children's ...
Houssami Nehmat N Nehmat Houssami, Robin Turner, Petra Macaskill, the Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia; Lindsay W. Turnbull, Centre for Magnetic Resonance Investigations, Hull York Medical School in association with University of Hull, Hull, United Kingdom; David R. McCready, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada; Todd M. Tuttle, University of Minnesota, Minneapolis, MN; Neha Vapiwala and Lawrence J. Solin, University of Pennsylvania School of Medicine; Lawrence J. Solin, Albert Einstein Medical Center, Philadelphia, - - 2014
There is little consensus regarding preoperative magnetic resonance imaging (MRI) in breast cancer (BC). We examined the association between preoperative MRI and local recurrence (LR) as primary outcome, as well as distant recurrence (DR), in patients with BC. An individual person data (IPD) meta-analysis, based on preoperative MRI studies that ...
Wang Zi Z Cleveland Clinic Epilepsy Center, 9500 Euclid Avenue, Desk S-51, Cleveland, OH, - - 2014
Objective: MRI-negative (MRI-) pharmacoresistant focal epilepsy (PFE) patients are most challenging for epilepsy surgical management. This study utilizes a voxel-based MRI post-processing technique, implemented using a morphometric analysis program (MAP), aiming to facilitate detection of subtle focal cortical dysplasia (FCD) in MRI- patients. Furthermore, the study examines the concordance between ...
Ogishima Hiroshi - - 2014
Abstract Objective To assess the utilities of ultrasonography (US) and low-field magnetic resonance imaging (compacTscan, cMRI) in the diagnosis of subclinical synovitis of hand joints of patients with rheumatoid arthritis (RA). Methods A total of 1,540 joints of 77 RA patients were examined clinically, using US, using cMRI, and the ...
Rogers Toby - - 2014
Diagnosis and prognostication in patients with complex cardiopulmonary disease can be a clinical challenge. A new procedure, MRI catheterization, involves invasive right-sided heart catheterization performed inside the MRI scanner using MRI instead of traditional radiographic fluoroscopic guidance. MRI catheterization combines simultaneous invasive hemodynamic and MRI functional assessment in a single ...
Hilgers Guido G Radiotherapeutic Institute RISO. - - 2014
Philips Healthcare released a novel metal artifact reduction algorithm for large orthopedic implants (O-MAR). Little information was available about its CT number accuracy. Since CT numbers are used for tissue heterogeneity corrections in external beam radiotherapy treatment planning, we performed a phantom study to assess the CT number accuracy of ...
Zhang Jing J School of Biomedical Engineering, Capital Medical University, Beijing, People's Republic of - - 2014
Patients with non-lesional or bilateral temporal-lobe epilepsy (TLE) are often excluded from surgical treatment. This study investigated focus lateralization in TLE to understand identification of the affected hemisphere with regard to non-lesional or bilateral affection and postsurgical outcome. A total of 24 TLE patients underwent presurgical evaluation with magnetic resonance ...
Zhang Tao T Electrical Engineering, Stanford University, Stanford, California, - - 2013
To develop a method for fast pediatric 3D free-breathing abdominal dynamic contrast enhanced (DCE) magnetic resonance imaging (MRI) and investigate its clinical feasibility. A combined locally low rank parallel imaging method with soft gating is proposed for free-breathing DCE MRI acquisition. With Institutional Review Board (IRB) approval and informed consent/assent, ...
Gianoli C - - 2013
The purpose of the study is to evaluate the performance of a novel strategy, referred to as "virtual 4D PET", aiming at the optimization of hybrid 4D CT-PET scan for radiotherapy treatment planning. The virtual 4D PET strategy applies 4D CT motion modeling to avoid time-resolved PET image acquisition. This ...
Taylor Fiona G M - - 2013
The prognostic relevance of preoperative high-resolution magnetic resonance imaging (MRI) assessment of circumferential resection margin (CRM) involvement is unknown. This follow-up study of 374 patients with rectal cancer reports the relationship between preoperative MRI assessment of CRM staging, American Joint Committee on Cancer (AJCC) TNM stage, and clinical variables with ...
Cervino Anna R - - 2013
The aim of the study was to evaluate the prognostic value of F-fluorodeoxyglucose PET/computed tomography (CT) after neoadjuvant therapy (NAT) in locally advanced esophageal cancer (EC) patients. We recruited 79 EC patients from a sample of 210 who underwent F-fluorodeoxyglucose PET/CT after NAT and who did not have evidence or ...
Jaberi A - - 2013
Filling defects at the internal carotid artery (ICA) origin in the work-up of stroke or transient ischemic attack may be an ulcerated plaque or free-floating thrombus (FFT). This may be challenging to distinguish, as they can appear morphologically similar. This is an important distinction as FFT can potentially embolize distally, ...
Syha Roland - - 2013
Off-resonant RF saturation influences signal intensity dependent on free and bound water fractions as well as the macromolecular content. The extent of interaction between these compartments can be evaluated by using the off-resonance saturation ratio (OSR). Combined with UTE sequences quantification of OSR even in tendinous tissues with extremely fast ...
Han B Kelly BK The Children's Heart Clinic at The Children's Hospitals and Clinics of Minnesota, 2530 Chicago Ave South, Suite 500, Minneapolis, MN 55404, USA; The Minneapolis Heart Institute and Foundation, Minneapolis, MN, USA. Electronic address: - - 2013
Neonates with complex congenital heart disease (CHD) are at risk of adverse events from anesthesia. CT angiography (CTA) performed free breathing and without sedation has not been reported for evaluation of complex CHD in neonates. The aim was to evaluate the image quality and risk of free breathing, non-sedated cardiac ...
Inoue Yuta - - 2013
We report 2 cases with acute brainstem and brainstem-cerebellar infarction showed improvement of their signs and symptoms after administration of edaravone. Case 1, a 74-year-old woman who experienced sudden vertigo, also had dysarthria and left hemiplegia. Magnetic resonance imaging (MRI) showed an abnormal region in the right ventrolateral medulla oblongata. ...
Saba Luca - - 2013
To explore the physiopathology and magnetic resonance imaging (MRI) findings in an animal model of acute arterial mesenteric ischemia (AAMI) with and without reperfusion. In this study, 8 adult Sprague-Dawley rats underwent superior mesenteric artery (SMA) ligation and were then randomly divided in two groups of 4. In group I, the ...
Kim Eric S - - 2013
The spontaneous regression of a lumbar herniated disc is a common occurrence. Studies using imaging techniques as well as immunohistologic analyses have attempted to explain the mechanism for regression. However, the exact mechanism remains elusive. Understanding the process by which herniated discs disappear in the absence of surgery may better ...
Lingala Sajan Goud - - 2013
The clinical utility of myocardial perfusion MR imaging (MPI) is often restricted by the inability of current acquisition schemes to simultaneously achieve high spatio-temporal resolution, good volume coverage, and high signal to noise ratio. Moreover, many subjects often find it difficult to hold their breath for sufficiently long durations making ...
Kim Sun-Ah - - 2013
Purpose:To retrospectively investigate whether the background parenchymal features around a tumor at preoperative dynamic contrast material-enhanced magnetic resonance (MR) imaging are associated with ipsilateral breast tumor recurrence (IBTR)-free survival in patients with ductal carcinoma in situ (DCIS) after breast conservation surgery.Materials and Methods:The institutional review board approved this study, and ...
Varghese Binoj B Department of Radiodiagnosis, Amala Institute of Medical sciences and Mediscan, Thrissur, Kerala, - - 2013
Placenta accreta (PA) is a severe pregnancy complication which occurs when the chorionic villi (CV) invade the myometrium abnormally. Optimal management requires accurate prenatal diagnosis. Ultrasonography (USG) and magnetic resonance imaging (MRI) are the modalities for prenatal diagnosis of PA, although USG remains the primary investigation of choice. MRI is ...
Bischoff Bernhard - - 2013
Coronary CT angiography (CCTA) is usually performed during breath holding to reduce motion artifacts caused by respiration. However, some patients are not able to follow the breathing commands adequately due to deafness, hearing impairment, agitation or pulmonary diseases. The aim of this study was to evaluate the potential of high-pitch ...
Cho Soo-Jeong - - 2013
Perforations are major complications of endoscopic gastric resection, including endoscopic submucosal dissection (ESD), and are generally detected on chest radiography following ESD. We hypothesized that a small amount of free air, defined as "intraperitoneal air," would not be noted on chest radiography. In this study we aimed to determine how ...
Matz Samantha - - 2013
Objectives- The presence of free intraperitoneal fluid on diagnostic imaging (sonography or computed tomography [CT]) may indicate an acute inflammatory process in children with abdominal pain in a nontraumatic setting. Although clinical outcomes of pediatric trauma patients with free fluid on diagnostic examinations without evidence of solid-organ injury have been ...
Huang Dexiao - - 2013
A 74-year-old man presented with a progressively worsening pain in sacrum and was diagnosed to have a sacral chordoma by biopsy in May, 2004. Percutaneous intratumoral injection with lipiodol-pingyangmycin suspension (LPS) was carried out under image guidance and repeated when the pain in sacrum recurred and the tumor increased. During ...
Marek Ashley P - - 2013
Free intra-peritoneal air in blunt trauma is a classic sign associated with hollow viscus injury, traditionally mandating laparotomy. In blunt abdominal trauma, the CT scan has become the diagnostic modality of choice. The increased sensitivity of CT scans may lead to detection of free intra-peritoneal air that is not clinically ...
Klein Steven - - 2013
Introduction The aim of this study was to compare magnetic resonance angiography (MRA) with digital subtraction angiography (DSA) in the preoperative assessment of crural arteries and their skin perforators prior to free fibular transfer. Patients and methods Fifteen consecutive patients, scheduled for free vascularized fibular flap transfer, were subjected to ...
Kirillov Oleg N - - 2013
The magnetorotational instability (MRI) can destabilize hydrodynamically stable rotational flows, thereby allowing angular momentum transport in accretion disks. A notorious problem for the MRI is its questionable applicability in regions with low magnetic Reynolds number. Using the WKB method, we extend the range of applicability of the MRI by showing ...
González-Barca Eva - - 2013
The predictive value of interim PET/computed tomography (I-PET/CT) in diffuse large B-cell lymphoma (DLBCL) is controversial. Our aim was to evaluate the predictive value of I-PET/CT for an event-free survival. We analyzed patients with DLBCL included in a prospective clinical trial who were treated with six cycles of dose-dense R-CHOP ...
Glockner James F JF Department of Radiology, Mayo Clinic, Rochester MN, USA. Electronic address: - - 2013
A novel 3D breath-held Dixon fat-water separated balanced steady state free precession (b-SSFP) sequence for MR cholangiopancreatography (MRCP) is described and its potential clinical utility assessed in a series of patients. The main motivation is to develop a robust breath-held alternative to the respiratory gated 3D Fast Spin Echo (FSE) ...
Zhao Qianying - - 2013
We pooled the data from published studies to estimate the prognostic value of fluorine-18-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) or PET/computed tomography (CT) in cervical cancer patients. We searched MEDLINE, EMBASE, and PUBMED to identify studies investigating the association of 18F-FDG PET or PET/CT with clinical survival outcomes of patients ...
Sousa Filipa L - - 2013
Ferrofluids and dry magnetic particles are two separate classes of magnetic materials with specific niche applications, mainly due to their distinct viscosity and interparticle distances. For practical applications, the stability of these two properties is highly desirable but hard to achieve. Conceptually, a possible solution to this problem would be ...
Joshi Veena D - - 2013
Studies have reported that clinical research has experienced tremendous growth during past few decades with many multinational pharmaceutical companies recruiting millions of Indians in clinical trials (CTs). However, there is hardly any literature that talks about the participants, their knowledge, and awareness of CTs. It is important that the general ...
Oida Takenori - - 2013
Ultra-low field magnetic resonance imaging (ULF-MRI) has attracted attention because of its low running costs and minimum patient exposure. An optically pumped atomic magnetometer (OPAM) is a magnetic sensor with high sensitivity in the low frequency range, which does not require a cryogenic cooling system. In an effort to develop ...
Luo Ningqi - - 2013
Gadolinium oxide (Gd2O3), which can be used as a T1-weighted magnetic resonance imaging (MRI) contrast agent, has attracted intense attention in recent years. In this paper, ligand-free monoclinic Gd2O3 nanocrystals of 7.1 nm in diameter are synthesized by a simple and green approach, namely microsecond laser ablation of a gadolinium ...
Minicozzi Annamaria - - 2013
Proton Magnetic Resonance Spectroscopy (1H MRS) is used for clinical diagnosis in some tumours. The aim of this study is to explore ex vivo the potential of 1H MRS in identifying malignancy through metabolic markers in the perspective of its application in all cases of difficult diagnosis and after neoadjuvant ...
Muchantef Karl - - 2013
BACKGROUND: Abdominal radiography is the reference standard in imaging neonates with necrotizing enterocolitis (NEC); however, ultrasound of the abdomen including bowel may be of value in this setting. OBJECTIVE: To correlate sonographic and radiographic findings with patient outcomes in NEC. MATERIALS AND METHODS: We reviewed sonographic and radiographic exams, as ...
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