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Triphan Simon M F SM Research Centre Magnetic Resonance Bavaria e.V. (MRB), Würzburg, Germany; Translational Lung Research Centre, member of the German Centre for Lung Research (DZL), Heidelberg, Germany; Department of Diagnostic and Interventional Radiology, University of Heidelberg, Heidelberg, - - 2014
To provide a robust method for the simultaneous quantification of T1 and T2 * in the human lung during free breathing. Breathing pure oxygen accelerates T1 and T2 * relaxation in the lung. While T1 shortening reflects an increased amount of dissolved molecular oxygen in lung tissue, T2 * shortening ...
Ogata Masaaki M Department of Emergency Medicine, Kobe City Medical Center West Hospital, Kobe, - - 2014
To evaluate the accuracy of ultrasonography (US) in the diagnosis of intestinal anisakiasis presenting as small bowel obstruction. We retrospectively reviewed the clinical features, US examinations, and CT scans of seven patients with intestinal anisakiasis presenting as small bowel obstruction. We compared the performances of US and CT in demonstrating ...
Li Weiguo W Department of Radiology, Northwestern University, Chicago, Illinois, - - 2014
Magnetization transfer (MT) MRI can be effective for the diagnosis of a broad range of fibrotic diseases, including liver fibrosis. However, respiratory motion, a major source of artifacts in thoracic and abdominal MR imaging, can obscure important anatomic structures, making diagnosis difficult. In this study, we explored the potential to ...
Glastonbury C M CM From the Departments of Radiology and Biomedical Imaging (C.M.G.), Anatomic Pathology (A.v.Z.), and Otolaryngology-Head and Neck Surgery (C.M.G., P.D.K.), University of California, San Francisco, San Francisco, California. - - 2014
The fibular free flap, often used for osseous reconstruction following extirpation of head and neck malignancies, has been associated with heterotopic periosteal ossification. We aimed to determine the frequency and radiologic characteristics of this process and describe its clinical correlates. Surgical records for 2 years and neck imaging reports for ...
Menys Alex A All authors are part of the Centre for Medical Imaging, University College London, - - 2014
Background Analysis of 'cine' MRI using segmental regions of interest (ROI) has become increasingly popular for investigating bowel motility however variation in healthy subjects motility both within and between scans remains poorly described. Methods 20 healthy individuals (mean age 28, 14 male) underwent Magnetic Resonance Enterography to acquire dynamic motility ...
Yoo Hye Jin HJ Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-Ro, Jongno-Gu, Seoul, 110-744, - - 2014
To assess the prevalence of the tail sign in soft tissue sarcomas and determine whether the local recurrence rate differed based on the presence of the tail sign. In our retrospective study, myxofibrosarcoma (MFS, n = 25) and undifferentiated sarcoma (US, n = 38) comprised group 1, and the remaining tumours (n = 115) were assigned ...
Gao Ying Y Department of Radiology, Case Western Reserve University, Cleveland, OH, USA; Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, - - 2014
Arterial spin labeling (ASL) is a valuable non-contrast perfusion MRI technique with numerous clinical applications. Many previous ASL MRI studies have utilized either echo-planar imaging (EPI) or true fast imaging with steady-state free precession (true FISP) readouts, which are prone to off-resonance artifacts on high-field MRI scanners. We have developed ...
Forstner Stefan S School of Mathematics and Physics, University of Queensland, St Lucia, Queensland, 4072, - - 2014
A cavity optomechanical magneto-meter operating in the 100 pT range is reported. The device operates at earth field, achieves tens of megahertz bandwidth with 60 μm spatial resolution and microwatt optical-power requirements. These unique capabilities may have a broad range of applications including cryogen-free and microfluidic magnetic resonance imaging (MRI), ...
Derakhshan Nima N Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, - - 2014
A 24-year-old male was transferred to the emergency department while being in the state of quadriplegia with a history of performing Parkour sport, which is also called double front flip. Neurological examination revealed that the patient's muscle power was 0/5 at all extremities. The patient did not show any sense ...
Carvalho Diego D B DD Department of Radiology and Department of Medical Informatics, Biomedical Imaging Group Rotterdam, Erasmus MC, Rotterdam 3015 CE, The - - 2014
To introduce a semiautomatic algorithm to perform the registration of free-hand B-Mode ultrasound (US) and magnetic resonance imaging (MRI) of the carotid artery. The authors' approach combines geometrical features and intensity information. The only user interaction consists of placing three seed points in US and MRI. First, the lumen centerlines ...
Kwon So-Young SY Department of Anesthesiology and Pain Medicine, St. Vincent Hospital, Catholic University of Korea; Department of Anesthesiology and Pain Medicine, St. Mary's Hospital, Catholic University of - - 2014
A 39-year-old woman with no history of trauma or meningitis presented to the neurology department of our hospital with an occipital headache, neck pain, nausea, and dizziness that had worsened during the previous month. The headache worsened when sitting or standing and partially regressed when lying down. She was diagnosed ...
R Mahesh M Senior Lecturer, Department of Paediatric Dentistry, Saveetha Dental College , Chennai, India - - 2014
Alterations in the morphology of permanent teeth following trauma to their predecessors is a challenging task for diagnosis and it may require advanced imaging techniques. Newer imaging modalities have replaced the conventional radiological procedures, as they allow 3D reconstruction images and views which are free of superimposition. Cone Beam CT ...
Wang Zhong I ZI Epilepsy Center, Cleveland Clinic, Cleveland, - - 2014
Objective: MRI-negative (MRI-) pharmacoresistant focal epilepsy (PFE) patients are most challenging for epilepsy surgical management. This study utilizes a voxel-based MRI postprocessing 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 ...
Bryant Nathan D ND Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, - - 2014
Myopathies often display a common set of complex pathologies that include muscle weakness, inflammation, compromised membrane integrity, fat deposition, and fibrosis. Multi-parametric, quantitative, non-invasive imaging approaches may be able to resolve these individual pathological components. The goal of this study was to use multi-parametric MRI to investigate inflammation as an ...
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 ...
Sharp Nicole E NE Children's Mercy Hospitals and Clinics, Department of Surgery, Kansas City, MO, - - 2014
We compare the amount of radiation children receive from CT scans performed at non-dedicated pediatric facilities (OH) versus those at a dedicated children's hospital (CH). Using a retrospective chart review, all children undergoing CT scanning for appendicitis at an OH were compared to children undergoing CT imaging for appendicitis at ...
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 ...
Steffensen Signe Muus SM Department of Plastic Surgery, South-West Jutland Hospital Esbjerg, Denmark ; Department of Plastic Surgery, Odense University Hospital, - - 2014
We present a case of a 56-year-old man with a giant carcinoma in the abdominal wall. Based on positron emission tomography/computed tomography (PET/CT) scan there were FDG-avid lymph nodes in the ipsilateral axillary and groin, suspicious for metastases. At contrast-enhanced CT the parietal peritoneum seemed free of tumor invasion, which ...
Chen Xiaojun X Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical engineering, Shanghai Jiao Tong University, Dong Chuan Road 800, Shanghai, Post Code: 200240 - - 2014
In 2010, gynecologic malignancies were the 4th leading cause of death in U.S. women and for patients with extensive primary or recurrent disease, treatment with interstitial brachytherapy may be an option. However, brachytherapy requires precise insertion of hollow catheters with introducers into the tumor in order to eradicate the cancer. ...
Türkmen Faik F Department of Orthopedics, NEU Meram School of Medicine, Akyokus, Meram, Konya, - - 2014
The bucket-handle meniscal tear is a specific type of meniscal injuries which has specific signs on MRI. An attached fragment displaced away from the meniscus with any type of tear causes bucket-handle tear of the meniscus. Magnetic resonance imaging (MRI) is the most commonly used diagnostic tool for meniscal injuries. ...
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 L Luca Saba, Department of Radiology, Azienda Ospedaliera Universitaria di Cagliari, 09045 Cagliari, - - 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, ...
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 ...
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