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Sanz-Requena Roberto R Biomedical Engineering, Hospital Quirón Valencia, Valencia, Spain; GIBI230, Hospital Universitari i Politècnic La Fe, Valencia, - - 2014
To introduce a segmentation method to calculate an automatic arterial input function (AIF) based on principal component analysis (PCA) of dynamic contrast enhanced MR (DCE-MR) imaging and compare it with individual manually selected and population-averaged AIFs using calculated pharmacokinetic parameters. The study included 65 individuals with prostate examinations (27 tumors ...
Baumann Stefan S Heart & Vascular Center, Medical University of South Carolina, Ashley River Tower, 25 Courtenay Drive, Charleston, SC, 29425-2260, - - 2014
The present study aimed to determine the feasibility of a novel fractional flow reserve (FFR) algorithm based on coronary CT angiography (cCTA) that permits point-of-care assessment, without data transfer to core laboratories, for the evaluation of potentially ischemia-causing stenoses. To obtain CT-based FFR, anatomical coronary information and ventricular mass extracted ...
Ho Kheng-Thye KT Mount Alvernia Hospital, Heart Consultants Pte Ltd, 820 Thomson Road, #02-25A, Singapore 574623 - - 2014
The aim of the study was to measure rest and stress myocardial blood flow (MBF) values prospectively in a low-risk population with 128-slice dual-source computed tomography (CT) and to compare MBF/coronary flow reserve (CFR) values to that of a second population with a documented coronary artery disease (CAD). This study ...
Hunter Michael A MA Psychology Clinical Neuroscience Center, The University of New Mexico, Albuquerque, NM, USA; Department of Psychology, The University of New Mexico, NM, USA; The Mind Research Network, Albuquerque, NM, USA; Department of Psychiatry, The University of New Mexico School of Medicine, Albuquerque, NM, - - 2014
Transcranial direct current stimulation (tDCS) modulates glutamatergic neurotransmission and can be utilized as a novel treatment intervention for a multitude of populations. However, the exact mechanism by which tDCS modulates the brain's neural architecture, from the micro to macro scales, have yet to be illuminated. Using a within-subjects design, resting-state ...
Ramadorai Uma U Department of Orthopaedics and Rehabilitation, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Georgia, United - - 2014
Study Design Systematic review. Clinical Question What is the prevalence of incidental magnetic resonance imaging (MRI) findings of the spine in asymptomatic pediatric patients? Methods Electronic databases and reference lists of key articles were searched up to December 15, 2013, to identify studies reporting the incidence or prevalence of incidental findings on MRI ...
Jones S S Department of Geography, Edge Hill University, Ormskirk, L39 4QP, UK; Centre for Aviation, Transport and the Environment, Manchester Metropolitan University, Manchester, M1 5GD, UK. Electronic address: - - 2014
The significant increase in global air travel which has occurred during the last fifty years has generated growing concern regarding the potential impacts associated with increasing emissions of atmospheric particulate matter (PM) on health and the environment. PM within the airport environment may be derived from a range of sources. ...
Tan Colin S H CS Ophthalmology, National Healthcare Group Eye Institute, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore - - 2014
Purpose: To determine the differences in choroidal thickness (CT) among different groups of refractive errors and axial lengths, and to describe the rates of change of CT with ocular and demographic factors in various regions of the macula. Methods: Prospective cohort study of 150 healthy volunteers. Spectral domain optical coherence ...
Venkatesh Bharath Ambale BA Johns Hopkins University, Baltimore, Maryland, - - 2014
To characterize the left ventricular (LV) regional deformation patterns and identify normal values of left ventricular strains from tagged magnetic resonance imaging (MRI) in a population with low-risk-factor (LRF) exposure. Tagged CMR on three LV short axis slices was performed in participants of the MESA study who were free of ...
Goldstein Gary R GR Department of Prosthodontics, College of Dentistry, New York University, New York, - - 2014
This retrospective study compared computed tomography (CT) imaging to routine dental periapical radiographs in diagnosing radiolucencies around endodontically treated teeth. Of the 244 CT scans evaluated, 104 had no teeth on the scan. On the remaining 140 scans, 353 teeth fell into the following categories: 59 maxillary molars, 30 mandibular ...
Tomida Kaori K Departments of Surgery, Shiga University of Medical Science, Otsu, Shiga 520-2192, - - 2014
Preoperative neoadjuvant chemotherapy (NAC) is considered to be the standard treatment for locally-advanced breast carcinomas. Obtaining precise information regarding the tumor extent and distribution by imaging modalities to assess the success of breast-conserving surgery following NAC is extremely important. Analysis of the detailed radiopathological correlation of magnetic resonance imaging (MRI) ...
Fukunaga Takeru T Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, - - 2014
To investigate type II endometrial carcinoma characterization using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and evaluate the diagnostic accuracy of semiquantitative DCE-MRI in differentiating type II from type I tumors. Seventy-seven patients with endometrial carcinoma were retrospectively evaluated using 3T DCE-MRI. The maximum absolute enhancement of signal intensity (SImax), maximum ...
Zheng Dechun D Department of Radiology, Fujian Medical University Teaching Hospital, Fujian Provincial Cancer Hospital & Institute, Fuzhou, Fujian, People's Republic of - - 2014
To prospectively evaluate the dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) value for predicting early nasopharyngeal carcinoma (NPC) chemoradiotherapy (CRT) response. Forty-two patients with advanced NPC were recruited and received three DCE-MRI exams before treatment (Pre-Tx), as well as 3 days (Day 3-Tx) and 40 days (Day 40-Tx) after chemotherapy initiation ...
Cohen Michael M MM Chief, Division of Podiatric Surgery, Surgical Service, Veterans Affairs Medical Center, Miami, - - 2014
As the most common joint disease, osteoarthritis (OA) poses a significant source of pain and disability. It can be defined by classic radiographic findings, particular symptoms, or a combination of the 2. Although specific grading scales have been developed to evaluate OA in various joints, such as the shoulder, hip, ...
Malavolta Eduardo Angeli EA Department of Orthopedics and Traumatology, School of Medicine, University of São Paulo (USP), Rua Dr. Ovídio Pires de Campos, 333 3rd floor, São Paulo, 05403-010, SP, - - 2014
The main aim of this study was to correlate measurements of the width and retraction of isolated full-thickness supraspinatus tendon tears determined by magnetic resonance imaging (MRI) with measurements recorded by arthroscopy using a continuous millimetre scale. A total of 53 individuals with isolated supraspinatus tears and retraction < 30 mm ...
Ahmad Sarfraz S Department of Musculoskeletal Oncology, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK, - - 2014
Assessment of the extent of tumours using magnetic resonance imaging (MRI) is the basis for bone resection in limb-salvage surgery. We aimed to compare the accuracy of T1-weighted MRI and STIR sequences in measuring the extent of proximal femoral tumours, using the macroscopic specimens as the gold standard for comparison. ...
Park Seung-Yong SY Department of Nuclear Medicine, Asan Medical Center, Seoul, Republic of - - 2014
To save and analyze the data from a positron emission tomography/computed tomography (PET/CT) scan, it is sometimes important to use a server away from the workstation of the equipment or to install and operate mini-picture archiving and communication system (PACS). Mini-PACS was developed to save the data from a scan ...
Fujima Noriyuki N Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan. Electronic address: - - 2014
To investigate the correlation between perfusion-related parameters obtained with intravoxel incoherent motion (IVIM) and classical perfusion parameters obtained with dynamic contrast-enhanced (DCE) MRI in patients with head and neck squamous cell carcinoma (HNSCC), and to compare direct and asymptotic fitting, the pixel-by-pixel approach, and a region of interest (ROI)-based approach ...
Guenoun Daphne D Radiology Department, APHM, Hôpital Sainte Marguerite, 13009, Marseille, France, - - 2014
The purpose was to study the anatomy of the humeral head, more specifically the retroversion of the humeral head and the orientation of the intertubercular sulcus, using CT scan, and to make correlations between those two entities of the proximal humerus. Sixty dry adult humeri from an osteological collection underwent ...
Ikink Marlijne E ME Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, Netherlands, - - 2014
To compare the effectiveness of magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU) with that of uterine artery embolisation (UAE) for treatment of uterine fibroids. Between January 2010 and January 2013, 51 women with symptomatic uterine fibroids underwent MR-HIFU. Follow-up and MR imaging were compared to 68 women treated with UAE, who fulfilled ...
Robert Williams Steven S Department of Psychiatry, John A. Burns School of Medicine, University of Hawai׳i at Mānoa, 1356 Lusitana St., 4th Floor, Honolulu, HI 96813, - - 2014
The objective of the study was to determine whether structural brain imaging was clinically useful in first episode psychosis (FEP) inpatient adolescents and young adults. The sample (N=115) was from the single largest medical center in the Pacific. A retrospective chart review design was used to review 12- to 30-year-old ...
Kim Min Yeong MY Department of Radiology, Dongtan Sacred Heart Hospital, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-do 445-907, Korea. Electronic address: - - 2014
To propose a useful computed tomography (CT) criterion, the diameter with compression (DWC), especially in appendices with borderline diameters. We retrospectively collected 216 patients with visible appendices on CT after clinicopathologic confirmation of appendicitis. Each CT criterion of appendicitis was evaluated by an experienced abdominal radiologist: maximal outer diameter (MOD), ...
Barnes Duncan M DM Eastcott Referrals, Swindon, United - - 2014
(1) To describe a protocol for measurement of the anatomic lateral distal femoral angle (aLDFA), angle of anteversion (AA), mechanical medial proximal tibial angle (mMPTA), tibial tuberosity displacement (TTD), and crural torsion angle (CTA) from computed tomography (CT) multiplanar reconstructions of canine hindlimbs. (2) To test the intra-observer variability (repeatability) ...
Abedi Garen G Department of Urology, University of California, Irvine, Orange, - - 2014
To retrospectively compare the radiation dose of triple-bolus computed tomography (TBCT) and conventional CT (CCT) urography protocols, analyze the effects of body mass index (BMI) on radiation dose in each group, and assess image quality. We retrospectively reviewed the images of patients who underwent CCT or TBCT imaging in the management ...
Bernstein Jonathan M JM University Department of Otolaryngology - Head & Neck Surgery, Manchester Royal Infirmary, Manchester Academic Health Science Centre, Central Manchester University Hospitals NHS Foundation Trust, Oxford Road, Manchester M13 9WL, UK; (b)Translational Radiobiology Group, Institute of Cancer Sciences, Manchester Academic Health Science Centre, University of Manchester, Wilmslow Road, Withington, Manchester M20 4BX, UK. Electronic address: - - 2014
Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) generates microvascular parameters from the tracer kinetic analysis of a series of MRI images obtained in under 15min. DCE-MRI parameters are associated with tumour hypoxia, which is well-established as a cause of treatment failure in head and neck squamous cell carcinoma (HNSCC). A systematic ...
Hwang Jiyoung J Department of Radiology, Soonchunhyang University Seoul Hospital, Seoul, Republic of - - 2014
Background & Aims: To evaluate the diagnostic performance of gadoxetic acid-enhanced magnetic resonance imaging (MRI) with and without additional diffusion weighted imaging (DWI) in the detection of hepatocellular carcinoma (HCC) in pre-transplant patients. Methods: We included 63 liver transplant patients (54 men, 9 women; mean age, 52 years) who underwent ...
Ha-Vinh P P Service médical, caisse régionale RSI Provence-Alpes, 29, boulevard de Dunkerque, 13235 Marseille cedex 02, France. Electronic address: - - 2014
The French government plans to install MRI facilities dedicated to musculoskeletal indications. We have analyzed the use of imaging investigations in the community to assess their market share. We undertook a retrospective analysis of all reimbursements during the year 2012 by the French Social Plan for Independent Workers for 4 ...
Mogilireddy Vijetha V Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, UFR des Sciences Exactes et Naturelles, Bâtiment 18, Europol'Agro, BP 1039, 51687, REIMS Cedex 2, - - 2014
Gold nanoparticles coated by gadolinium (III) chelates (Au@DTDTPA) where DTDTPA is a dithiolated bisamide derivative of diethylenetriamine-N,N,N',N'',N''-pentaacetic acid (DTPA), constituted contrast agents for both X-ray computed tomography and magnetic resonance imaging. In an MRI context, highly stable Gd(3+) complexes are needed for in vivo applications. Thus, knowledge of the thermodynamic ...
Gaziev Gabriele G Department of Urology, Addenbrooke's Hospital, Cambridge, CB2 0QQ, - - 2014
To determine the accuracy of multiparametric Magnetic Resonance Imaging (mpMRI) during the learning curve of radiologists using MRI targeted, transrectal ultrasound guided transperineal fusion biopsy (MTTP) for validation. Prospective data on 340 men who underwent mpMRI (T2 weighted and DW-MRI) followed by MTTP prostate biopsy, was collected according to Ginsburg ...
Rydhög Anna A Department of Medical Radiation Physics, Lund University, Lund, Sweden. Electronic address: - - 2014
Due to limited SNR the cerebral applications of the intravoxel incoherent motion (IVIM) concept have been sparse. MRI hardware developments have resulted in improved SNR and this may justify a reassessment of IVIM imaging for non-invasive quantification of the cerebral blood volume (CBV) as a first step towards determining the ...
Otto Mirko M UMM, University Medical Center Mannheim, Department of Surgery, Heidelberg University, Mannheim, Germany, - - 2014
Roux-en-Y gastric bypass (RYGB) result in a marked reduction of body fat and also visceral fat (VF) decrease up to 36 % in 16 weeks. This leads to positive effects on cardiometabolic risks, which are known to be correlated with the occurrence of VF. This study analyzed the validity of ...
Guan Xiaofei X Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, People's Republic of - - 2014
A MRN-based morphometric analysis of the working zone for PELD procedures on 32 health volunteers. The purpose is to utilize magnetic resonance neurography (MRN) as a noninvasive evaluation of the kambin's working zone, and further to analyze operative safety of the posterolateral endoscopic lumbar discectomy (PELD) procedures. Intraoperative nerve root ...
Vincenti Gabriella G Division of Cardiology and Cardiac MR Center, University Hospital of Lausanne, Lausanne, - - 2014
The purpose of this study was to compare a novel compressed sensing (CS)-based single-breath-hold multislice magnetic resonance cine technique with the standard multi-breath-hold technique for the assessment of left ventricular (LV) volumes and function. Cardiac magnetic resonance is generally accepted as the gold standard for LV volume and function assessment. ...
Hinrichs Jan J Institute of Interventional Radiology, Hannover Medical School, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research, OE 8220, Carl-Neuberg-Str. 1, 30625 Hannover, Germany. Electronic address: - - 2014
Detection of a systemic hemodynamic response in patients suffering from allergic asthma after segmental endobronchial allergen challenge using phase-contrast magnetic resonance imaging (MRI). Nine asthma patients and four healthy volunteers were examined using MRI (1.5T) before (0 hour), 6 hours, and 24 hours after segmental allergen challenge. Two-dimensional phase-contrast MRI ...
Datir Abhijit A 1 Department of Radiology & Imaging Sciences, Musculoskeletal Division, Emory University Hospital, 59 Executive Park South, Atlanta, GA - - 2014
OBJECTIVE. The purpose of this study was to compare the diagnostic utility of MRI and MR arthrography for ligamentum teres tears in patients with hip pain. MATERIALS AND METHODS. This is a retrospective study involving 187 patients who underwent MRI or MR arthrography for hip pain. This study included 103 ...
Eberhard Lydia L Department of Prosthodontics, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany, - - 2014
Standard procedure for the measurement of masticatory performance is the fractionated sieving of fragmented test food, which is substantially time consuming. The aim of this study was to introduce a less laborious, comparable, and valid technique based on scanning. Fifty-six Optocal chewing samples were minced by wearers of complete dentures ...
Yüksel Deniz D From the Department of Pediatric Neurology (D.Y.), Dr. Sami Ulus Children's Hospital, Ankara; Department of Radiology (B.D., H.U.), Ankara Medicana Hospital, Ankara; Department of Pediatric Neurology (S.A.), Çukurova University Faculty of Medicine, Adana; and Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey. - - 2014
We performed diffusion tensor imaging (DTI) and magnetic resonance spectroscopy (MRS) studies in a group of patients with subacute sclerosing panencephalitis (SSPE) in order to estimate the pathologic process underlying the phenotypic variability. Patients with SSPE who had MRI including DTI and MRS examinations were evaluated according to their clinical ...
Wei Jun J Department of Radiology, University of Michigan, Ann Arbor, Michigan - - 2014
The buildup of noncalcified plaques (NCPs) that are vulnerable to rupture in coronary arteries is a risk for myocardial infarction. Interpretation of coronary CT angiography (cCTA) to search for NCP is a challenging task for radiologists due to the low CT number of NCP, the large number of coronary arteries, ...
Price Ryan G RG Department of Radiation Oncology, Henry Ford Health Systems, Detroit, Michigan 48202 and Wayne State University School of Medicine, Detroit, Michigan - - 2014
Iterative reconstruction (IR) reduces noise, thereby allowing dose reduction in computed tomography (CT) while maintaining comparable image quality to filtered back-projection (FBP). This study sought to characterize image quality metrics, delineation, dosimetric assessment, and other aspects necessary to integrate IR into treatment planning. CT images (Brilliance Big Bore v3.6, Philips ...
Quadri Rehan R George Washington School of Medicine and Health Sciences, Washington, District of Columbia. Electronic address: - - 2014
Many previous studies have shown that nonradiologist physicians who can refer advanced MRI and CT examinations to themselves or within their practices use these modalities at a much higher rate than those who refer their examinations to unaffiliated radiology facilities. This led Maryland to pass a unique self-referral law in ...
Andersson Marlene M Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, - - 2014
Spider silk fibers are produced from soluble proteins (spidroins) under ambient conditions in a complex but poorly understood process. Spidroins are highly repetitive in sequence but capped by nonrepetitive N- and C-terminal domains (NT and CT) that are suggested to regulate fiber conversion in similar manners. By using ion selective ...
Gandhi Rohit - - 2014
ABSTRACTObjective:Headaches are a common problem in the pediatric population. In 2002, the American Academy of Neurology (AAN) developed guidelines on neuroimaging for patients presenting with headache. Our objective was to determine the frequency of computed tomographic (CT) scanning ordered by a range of medical practitioners for pediatric patients presenting with ...
Suri Rakesh R RR The Division of General Surgery, and the Department of Surgery, McMaster University, Hamilton, - - 2014
The management of nonstrangulating small bowel obstruction (SBO) may require surgery, but the need for and timing of surgical intervention isn't always apparent. We sought to determine whether specific features on computed tomography (CT) can predict the necessity for operative management. Two radiologists independently reviewed CT scans from all patients ...
Ogawa Takahisa T Department of Gastroenterology, Sendai City Medical Center, 5-22-1 Tsurugaya, Miyagino-ku, Sendai, 983-0824, Japan. - - 2014
The aim of this study was to evaluate the usefulness of high b-value diffusion-weighted magnetic resonance imaging (DWI) for evaluating the histological degree of malignancy in patients with intraductal papillary mucinous neoplasm (IPMN). A total of 35 patients (mean age 68 ± 10 years, 23 males) who had undergone DWI ...
Kukar Moshim M Department of Surgical Oncology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, 14263, USA, - - 2014
Four-dimensional computed tomography (4D CT) has emerged as an extremely sensitive preoperative imaging modality for primary hyperparathyroidism compared with the historical use of sestamibi and ultrasound (US). Specialized volume rendering and technical modifications further enhance this technique for operative guidance while reducing radiation exposure. Patients undergoing parathyroidectomy for primary hyperparathyroidism ...
Moisseiev Elad E *Department of Ophthalmology, Tel Aviv Medical Center, Tel Aviv, Israel; †Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; and ‡The Advanced Technology Center, Sheba Medical Center, Tel-Hashomer, - - 2014
To perform a comprehensive comparative analysis of nonmetallic intraocular foreign bodies (IOFBs) using computed tomography (CT) and magnetic resonance imaging (MRI). An ex vivo model of porcine eyes was used to study IOFBs consisting of 10 different materials: plastic, eyeglass lens, bottle glass, windshield glass, porcelain, gravel stone, concrete, wood, ...
George Elizabeth E Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital, Boston, - - 2014
Available data are limited on the level of adherence to established guidelines for appropriate utilization of MR in musculoskeletal imaging. This study estimates the percentage of MRI examinations for knee and shoulder pain or tendonitis performed without prior radiography, which thus may fall outside the ACR Appropriateness Criteria for the ...
Platzek Ivan I Department of Radiology, Dresden University Hospital, Fetscherstr. 74, 01307 Dresden, Germany. Electronic address: - - 2014
The purpose of this study was to evaluate the sensitivity and specificity of positron emission tomography/magnetic resonance imaging (PET/MR) with 18F-fluorodeoxyglucose (FDG) for nodal involvement in malignant lymphoma. Twenty-seven patients with malignant lymphoma (16 men and 11 women; mean age, 45 years) were included in this retrospective study. The patients underwent ...
Chang Chih-Han - - 2014
The biomechanical property of the periodontal ligament (PDL) is important in orthodontics and prosthodontics. The objective of this study was to evaluate the feasibility of measuring the biomechanical behavior of the periodontal ligament using micro-computed tomography (micro-CT). A custom-made apparatus measured the force and displacement of a porcine PDL specimen ...
Mueller Dirk D Department of Radiology, University of Cologne, Germany; Department of Radiology, Technische Universität München, Germany. Electronic address: - - 2014
To evaluate magnetic resonance (MR) perfusion and diffusion imaging characteristics in patients with transient bone marrow edema (TBME), avascular necrosis (AVN), or subchondral insufficiency fractures (SIF) of the proximal femur. 29 patients with painful hip and bone marrow edema pattern of the proximal femur on non-contrast MR imaging were examined ...
Bour Laurence L Department of Abdominal and Interventional Imaging, Hôpital Lariboisière-AP-HP, 2 rue Ambroise Paré, 75475, Paris cedex 10, France, - - 2014
To determine the utility of magnetic resonance imaging (MRI) in diagnosing invasive placenta (IP). MRI findings in 32 women with suspected IP were evaluated independently by four readers. Interobserver agreement was calculated with kappa (κ) statistics. Associations between MRI findings and IP were assessed by univariate and multivariate analyses. Sensitivity, ...
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