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Gürkov R R Department of Otorhinolaryngology Head and Neck Surgery, Grosshadern Medical Centre, University of Munich, Marchioninistr. 15, 81377, Munich, Germany, - - 2014
We aimed to volumetrically quantify endolymph and perilymph spaces of the inner ear in order to establish a methodological basis for further investigations into the pathophysiology and therapeutic monitoring of Menière's disease. Sixteen patients (eight females, aged 38-71 years) with definite unilateral Menière's disease were included in this study. Magnetic ...
Hague Cameron J CJ Departments of *Radiology ∥Radiology and Cardiology ¶Medicine, Division of Respirology, James Hogg Research Center & The Institute of Heart and Lung Health, University of British Columbia, St. Paul's Hospital †James Hogg Research Center & The Institute of Heart and Lung Health Departments of #Radiology and Cardiology **Radiology, James Hogg Research Center & The Institute of Heart and Lung Health, University of British Columbia, Vancouver General Hospital, Vancouver, BC §Department of Radiology McGill University Health Centre, Montreal, QC, Canada ‡Department of Diagnostic Imaging, King Fahd Military Medical Complex, Dhahran, Kingdom of Saudi - - 2014
The purpose of this research is to examine the role that differing levels of adaptive statistical iterative reconstruction (ASIR) have on the qualitative and quantitative assessment of smoking-related lung disease. Institutional board review approval was obtained. A total of 52 patients undergoing clinically indicated low-dose computed tomographic (CT) examinations of ...
Neal David C DC aCenter of Excellence in Hip Disorders, Texas Scottish Rite Hospital for Children bUniversity of Texas Southwestern Medical Center, Dallas, Texas, - - 2014
A quantitative method to assess hip synovitis in Legg-Calvé-Perthes disease (LCPD) is not currently available. To develop this method, the areas of synovial enhancement on gadolinium-enhanced MRI (Gd-MRI) were measured by two independent observers. The volume of synovial enhancement was significantly increased in the initial and the fragmentation stages of ...
Bornefalk Hans - - 2014
Material basis decomposition in the sinogram domain requires accurate knowledge of the forward model in spectral CT. Misspecifications over a certain limit will result in biased estimates and make quantum limited (where statistical noise dominates) quantitative CT difficult. We present a method whereby users can determine the degree of allowed ...
Carbonell Felix F Biospective Inc., Montreal, QC, - - 2014
Conventional brain connectivity analysis is typically based on the assessment of interregional correlations. Given that correlation coefficients are derived from both covariance and variance, group differences in covariance may be obscured by differences in the variance terms. To facilitate a comprehensive assessment of connectivity, we propose a unified statistical framework ...
Alexiades George G *Icahn School of Medicine at Mount Sinai, New York, New York, U.S.A.; and †MED-EL Corporation, Innsbruck, - - 2014
Using a linear measurement of the cochlea on a single radiographic image can reliably estimate the complete and two-turn cochlear duct length (CDL) in a normal human temporal bone. CDL is measured from the middle of the round window to the helicotrema. Histologic studies have shown the length of the ...
Kadono Yoshifumi Y Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan - - 2014
We investigated the relationship between a new index considering the estimated working space and difficulty of robot-assisted radical prostatectomy (RARP) using our database. Working height was calculated by the obstetric conjugate diameter minus the bladder and rectal wall thicknesses minus the thickness of postvesical fat minus the rectal fat thicknesses ...
Rautiainen J J Department of Applied Physics, University of Eastern Finland, Kuopio, Finland; Department of Diagnostic Radiology, University of Oulu, Oulu, Finland; Medical Research Center Oulu, University of Oulu, Oulu, Finland. Electronic address: - - 2014
To investigate the sensitivity of seven quantitative magnetic resonance imaging (MRI) parameters (adiabatic T1ρ, adiabatic T2ρ, continuous wave (CW) T1ρ, relaxation along a fictitious field (RAFF), T2 measured with adiabatic double echo (DE) and Carr-Purcell-Meiboom-Gill (CPMG) sequence, and T1 during off-resonance saturation [magnetization transfer (MT)]) to detect early osteoarthritic changes ...
Jordan C D CD Department of Radiology, Stanford University, Stanford, CA, United States; Department of Bioengineering, Stanford University, Stanford, CA, United States. Electronic address: - - 2014
To measure the variability of T1ρ relaxation times using CubeQuant, T2 relaxation times using quantitative double echo in steady state (DESS), and normalized sodium signals using 3D cones sodium magnetic resonance imaging (MRI) of knee cartilage in vivo at 3 T. Eight healthy subjects were scanned at 3 T at baseline, 1 day, ...
Barr A J AJ Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds, - - 2014
Radiographic measures of osteoarthritis (OA) are based upon two dimensional projection images. Active appearance modelling (AAM) of knee magnetic resonance imaging (MRI) enables accurate, 3D quantification of joint structures in large cohorts. This cross-sectional study explored the relationship between clinical characteristics, radiographic measures of OA and 3D bone area (tAB). ...
Norman Daniel G DG WMG, The University of Warwick, Coventry, CV4 7AL, UK, - - 2014
The femoral footprint of the anterior cruciate ligament (ACL) is a much-studied anatomic structure, predominantly due to its importance during ACL reconstruction surgery. A new technique utilising high-resolution micro-computed tomography (micro-CT) is described, allowing detailed three-dimensional (3D) quantitative analysis of this structure. Seven cadaveric knees were scanned using micro-CT, yielding ...
Owsijewitsch Michael M 1Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg , Heidelberg , - - 2014
Abstract Purpose: The change of emphysema distribution with increasing COPD severity is not yet assessed. Especially, involvement of the upper aspect of the lower lobe is unknown. The primary aim was to quantitatively determine regional distribution of emphysema in anatomically (lung lobes) and non-anatomically defined lung regions (upper/lower lung halves ...
Han Chengkun C Department of Neuroradiology, The First Affiliated Hospital of Xiamen University, Fujian, - - 2014
To determine whether apparent diffusion coefficient (ADC) values obtained using a b-value of 3000 s/mm(2) can be used to differentiate high-grade glioma (HGG) from solitary metastases (SM). Forty patients underwent conventional magnetic resonance imaging (MRI) and standard and high b-value diffusion-weighted imaging (DWI). Minimum, maximum, and mean ADC values (ADCMIN ...
Takahashi Shigekiyo S Department of Cardiology, Gifu University Gradual School of Medicine, 1-1 Yanagido, Gifu, 501-1194, - - 2014
Recently, a new generation of multi-detector row computed tomography (CT) with 320-detector rows (DR) has become available in the clinical settings. The purpose of the present study was to determine the cutoff values of Hounsfield unit (HU) for discrimination of plaque components by comparing HU of coronary plaques with integrated ...
Jarman Joshua P JP Medical Student, Medical College of Wisconsin, Milwaukee, WI, 53226, - - 2014
Quantitative MRI techniques were utilized to study intervertebral disc degeneration. Main focus was to develop a novel approach to quantify disc height loss associated with disc degeneration. Currently there is no universally accepted metric of degeneration based on measurement of disc height. Such quantitative imaging methods would complement qualitative visual ...
Font-I-Furnols Maria M 1IRTA-Product Quality,Finca Camps i Armet,17121 - - 2014
The aim of the present work was (1) to study the relationship between cross-sectional computed tomography (CT) images obtained in live growing pigs of different genotypes and dissection measurements and (2) to estimate carcass composition and cut composition from CT measurements. Sixty gilts from three genotypes (Duroc×(Landrace×Large White), Pietrain×(Landrace×Large White), ...
Tan Stephanie S Department of Radiology, Centre Hospitalier de l'Université de Montréal, Hôpital Notre-Dame (CHUM), 1560 Sherbrooke East, Montreal, QC, H2L 4M1, Canada, - - 2014
To determine the reliability of carpal angles measured on CT and MRI compared to radiography and assess if these measurements are interchangeable. Our institutional ethic research committee approved this study. For this retrospective study, two independent observers measured the scapholunate (SL), capitolunate (CL), radiolunate (RL), and radioscaphoid (RS) angles on ...
Koff Matthew F MF MRI Laboratory, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, United States. Electronic address: - - 2014
Tendinopathy affects individuals who perform repetitive joint motion. Magnetic resonance imaging (MRI) is frequently used to qualitatively assess tendon health, but quantitative evaluation of inherent MRI properties of loaded tendon has been limited. This study evaluated the effect of cyclic loading on [Formula: see text] values of fresh and frozen ...
Meister B B Department of Urology, University Medical Center Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany, - - 2014
Residual calculi after stone therapy need to be treated if they are clinically significant, mainly depending on the size of the calculi. There are different ways to detect and measure the size of residual calculi as for example KUB or computed tomography. The Uro Dyna-CT (Siemens Healthcare solutions, Erlangen, Germany) ...
Sfoungaristos Stavros S Hadassah University Hospital, The Hebrew University, Jerusalem, Israel. Electronic address: - - 2014
To create a model for prediction of stone radiopacity based on computed tomography (CT) parameters. We reviewed the medical records of 513 patients referred to our department for consultation for urolithiasis between March 2011 and December 2012. CT scan and kidney-ureter-bladder (KUB) film were reviewed to identify the value of ...
Iwanaga Takashi T Department of Medical Imaging, Institute of Health Biosciences, The University of Tokushima Graduate - - 2014
Purpose: We compared the regional cerebral blood flow (rCBF) obtained by pulsed continuous arterial spin labeling (pCASL) and iodine-123-N-isopropyl-p-iodoamphetamine (IMP) single photon emission computed tomography (SPECT) using 3-dimensional stereotactic region-of-interest (ROI) software for automated definition of ROIs in anatomic regions of the brain.Methods: Thirteen patients with cerebrovascular occlusive disease and ...
Aribisala Benjamin S BS From the *Institute of Cellular Medicine & Newcastle Magnetic Resonance Centre, Newcastle University, Newcastle upon Tyne; †Brain Research Imaging Centre, University of Edinburgh, Edinburgh; ‡Institute of Neuroscience, Newcastle University, Newcastle upon Tyne; and §Department of Neurosurgery, Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, - - 2014
The most commonly used summary metric in neuroimaging is the mean value, but this pays little attention to the shape of the data distribution and can therefore be insensitive to subtle changes that alter the data distribution. We propose a distributional-based metric called the normalized histogram similarity measure (HSM) for ...
Hur Bo Yun BY From the *Department of Radiology, SMG-SNU Boramae Medical Center; and †Department of Radiology, ‡Institute of Radiation Medicine, and §Department of Pathology, Seoul National University Hospital, Seoul, - - 2014
The objective of this study was to evaluate the feasibility and accuracy of postcontrast, dual-energy computed tomography (DECT) using multimaterial decomposition (MMD) for quantification of the hepatic fat fraction (HFF). Various degrees of fatty liver were produced in 16 rabbits divided into 4 groups, by feeding them a high-fat, high-cholesterol ...
Terrier Alexandre A Laboratory of Biomechanical Orthopedics, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland. Electronic address: - - 2014
During total shoulder arthroplasty (TSA), humeral head subluxation may be difficult to manage. Furthermore, there is a risk for postoperative recurrence of subluxation, affecting the outcome of TSA. An accurate evaluation of the subluxation is necessary to evaluate this risk. Currently, subluxation is measured in 2 dimensions (2D), usually relative ...
Wang Hui - - 2014
While the assembled 1D magnetic nanoparticle (NP) chains have demonstrated synergistic magnetic effects from the individual NPs, it is essential to prepare new 1D NP chains that can combine the magnetism with other important material properties for multifunctional applications. This paper reports the fabrication and multifunctional investigation of a new ...
Lhommel Renaud R From the Departments of *Nuclear Medicine, †Pathology, ‡Neurology, §Hematology, and ¶Cardiology, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Brussels, - - 2014
We report here the case of a 56-year-old man with well-documented cardiac light chain amyloidosis successfully imaged with F-flutemetamol PET/CT in 2011. A matched pair healthy volunteer was imaged in the same conditions, and no specific heart uptake could be detected. The present report suggests the potential benefit of this ...
Liu Yang Y Center of Otolaryngology, PLA Navy General Hospital, Beijing 100048, China. Electronic address: - - 2014
To assess the quality of three-dimensional volume rendered computer tomography (3D-CTVR), multi-planar reformation (MPR) and CT section plane in the fine diagnosis of ossicular chain in middle ear cholesteatoma. Sixty patients with middle ear cholesteatoma were selected in this retrospective study. All cases underwent pre-operative CT scan. The respective radiologic ...
G Neto Orlando O Department of Obstetrics and Gynecology, Professor José Aristodemo Pinotti Hospital, Center for Integral Assistance to Women's Health, State University of Campinas (UNICAMP), Campinas, SP, - - 2014
To test the feasibility and reproducibility of diffusion-weighted magnetic resonance imaging (DW-MRI) evaluations of the fetal brains in cases of twin-twin transfusion syndrome (TTTS). From May 2011 to June 2012, 24 patients with severe TTTS underwent MRI scans for evaluation of the fetal brains. Datasets were analyzed offline on axial ...
Oghli Mostafa Ghelich MG Department of Biomedical Engineering, Kermanshah University of Medical Sciences, Kermanshah, - - 2014
Assessment of cardiac right-ventricle functions plays an essential role in diagnosis of arrhythmogenic right ventricular dysplasia (ARVD). Among clinical tests, cardiac magnetic resonance imaging (MRI) is now becoming the most valid imaging technique to diagnose ARVD. Fatty infiltration of the right ventricular free wall can be visible on cardiac MRI. ...
Ariani A A Department of Medicine, Internal Medicine and Rheumatology Unit, Azienda Ospedaliero- Universitaria di Parma, Parma, - - 2014
The pulmonary fibrosis extent in systemic sclerosis (SSc) has a prognostic value. Chest Computed Tomography (CT) is the gold standard to detect an interstitial lung disease (ILD). Semi-quantitative scores and quantitative methods can estimate the ILD. The first ones have a considerable inter-intraobserver variability, while quantitative scores, based on distribution ...
Gong Xi X Resident, Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, - - 2014
To improve the clinical evaluation of the symmetry of the zygomatic complex (ZMC), the authors developed a new method to measure the eminence and width of the ZMC using 3-dimensional (3D) computed tomography (CT). The accuracy and reproducibility of the ZMC symmetry evaluation using this method were investigated. Spiral CT was ...
Helton Kathleen J KJ St. Jude Children's Research Hospital, Memphis, TN, United States; - - 2014
Stroke With Transfusions Changing to Hydroxyurea (SWiTCH) compared standard (transfusions/chelation) to alternative (hydroxyurea/phlebotomy) treatment to prevent recurrent stroke and manage iron overload in children chronically transfused over seven years before enrollment. Standardized brain magnetic resonance imaging/ angiography (MRI/MRA) and transcranial Doppler (TCD) exams were performed at entry and exit with ...
Budjan Johannes J Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany, - - 2014
After allogeneic stem cell transplantation (SCT), a reliable diagnosis of acute graft versus host disease (aGvHD) is essential for an early and successful treatment. It is the aim of this analysis to assess intestinal aGvHD by magnetic resonance imaging (MRI). Prior to allogeneic SCT, 64 consecutive patients underwent abdominal MRI ...
Waltz Robert A RA Orthopaedic Surgery, Naval Health Clinic New England, Newport, Rhode Island, - - 2014
BACKGROUND:Magnetic resonance imaging (MRI) showing an "intact" anterior cruciate ligament (ACL) graft may not correlate well with examination findings. Reasons for an ACL graft dysfunction may be from malpositioned tunnels, deficiency of secondary stabilizers, repeat injuries, or a combination of factors. PURPOSE:To evaluate the concordance/discordance of an ACL graft assessment ...
Jia Li L Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing 100875, P. R. China. - - 2014
A novel ferromagnetic 1D dysprosium chain was synthesized. It exhibits slow magnetic relaxation, originating from the single-ion behaviour of Dy(3+) as indicated by dc and ac magnetic data of both diluted and un-diluted samples.
Kato Hiroki H Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan(1). Electronic address: - - 2014
The purpose of this study was to compare the diagnostic accuracies of CT and MR imaging for the detection of metastatic retropharyngeal lymph nodes (RLNs) in patients with nasopharyngeal and oropharyngeal squamous cell carcinoma (SCC). The study included 38 patients (28 men and 10 women; mean age, 65 years; age ...
Swami Vimarsha Gopal VG Department of Radiology and Diagnostic Imaging, University of Alberta, 2A2.41 WC Mackenzie Health Sciences Centre, 8440-112 Street, Edmonton, AB, T6G 2B7, Canada, - - 2014
Anatomic placement of anterior cruciate ligament (ACL) grafts at arthroscopic reconstruction can be challenging. Localising ACL attachments on magnetic resonance imaging (MRI) sequences pre-operatively could aid with planning for anatomic graft placement. Though ACL attachments can be identified on two-dimensional (2D) MRI, slice thickness theoretically limits out-of-plane accuracy and a ...
Opie Alex M T AM Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New - - 2014
The hybrid spectral micro-computed tomography (CT) architecture integrates a conventional imaging chain and an interior spectral imaging chain, and has been proven to be an important development in spectral CT. The motivation for this study is to minimize X-ray exposure for hybrid spectral micro-CT using both simulated and experimental scan ...
Tayama Eiki - - 2014
Diagnosis of vascular graft prosthesis infection is crucial, but not straightforward. Here we report two cases in which [18 F] fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (18 F-FDG PET/CT) was very useful in the diagnosis of aortic graft infection. Case 1: A 77-year-old Japanese man, two months status post aortic arch ...
Kim Sol Ip SI Department of Radiology, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, Republic of - - 2014
The use of double-bundle and selective-bundle anterior cruciate ligament (ACL) reconstruction is increasing. Few studies have been conducted to determine the diagnostic efficacy of additional oblique views of knee magnetic resonance imaging (MRI) for grading ACL graft injury for double-bundle and selective-bundle ACL reconstructions. To evaluate the diagnostic value of ...
Kunze Albrecht A From the *Hans Berger Department of Neurology, †Department of Nuclear Medicine, and ‡Center for Sepsis Control and Care, Jena University Hospital, Jena, - - 2014
Autoimmune encephalitis (AE) is increasingly recognized as a nonparaneoplastic disorder with autoantibodies to neuronal proteins. Although MRI is frequently unremarkable, PET imaging might contribute to identification of affected brain regions in distinct AE. We report on serial FDG PET in a 72-year-old man with particular AE subtype, with potassium channel ...
Rimon U U Diagnostic Imaging, Chaim Sheba Medical Center, Tel-Hashomer, Affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel. Electronic address: - - 2014
To report the results of long-term (>5 years) computed tomography (CT) angiography follow-up after thoracic endovascular aortic repair in patients with traumatic thoracic aortic injury. All follow-up CT angiographies performed in patients with traumatic thoracic aorta injury treated by endovascular stent-graft between 2002 and 2008 were reviewed. Of the 14 ...
Keidar Zohar Z Department of Nuclear Medicine, Rambam Health Care Campus, Haifa, - - 2014
(18)F-FDG PET/CT is of value in the diagnosis of prosthetic vascular graft infection, but potential pitfalls related to tracer uptake in noninfected implants have been described. The current study assesses the incidence and patterns of (18)F-FDG uptake over time in noninfected grafts, in relationship to prosthetic material and location. A ...
Vella Dominic D Mathematical Institute , University of Oxford , Oxford OX2 6GG, - - 2014
Spherical neodymium-iron-boron magnets are permanent magnets that can be assembled into a variety of structures owing to their high magnetic strength. A one-dimensional chain of these magnets responds to mechanical loadings in a manner reminiscent of an elastic rod. We investigate the macroscopic mechanical properties of assemblies of ferromagnetic spheres ...
Park Caroline C Hospital for Special Surgery, New York, NY. - - 2014
Anterior cruciate ligament (ACL) rupture is a common condition often treated with an allograft reconstruction. In this case, a patient presented 2 months post-ACL allograft reconstruction with acute knee synovitis. Initially, it was assumed to be septic arthritis; however, based on magnetic resonance imaging, pathology, serology, and cultures, his acute ...
Boiko Ernest V EV Department of Ophthalmology, Military Medical Academy, 6 Lebedeva street, St. Petersburg, 194044, - - 2014
Purpose:To study clinical and histopathologic manifestations of Chlamydia trachomatis (CT)-induced chronic posterior segment (PS) inflammation in rabbits. Methods:Fifteen rabbits were divided into 3 equal groups of CT non-intravitreal (NIV) and intravitreal (IV) inoculation and controls. Both non-control groups received a bilateral subconjunctival injection (BSI) and the IV group additionally received ...
Rehmatullah N N St Helens and Knowsley Teaching Hospitals NHS Trust, UK. - - 2014
A 64-year-old man presented with intermittent but progressive lateral-sided knee pain. Symptoms mimicked those of a lateral meniscal tear. Magnetic resonance imaging revealed a cyamella associated with popliteal tendonitis and an intact lateral meniscus.
Omoto Shusaku S Department of Neurology, Katsushika Medical Center, The Jikei University School of - - 2014
A 44-year-old woman with a history of transient right hemiparesis presented with personality change. One year later, she was admitted with ophthalmoparesis, dysarthria and regression phenomenon. MRI indicated acute infarction of the paramedian region of the midbrain and a nodular lesion in the interpeduncular fossa with contrast enhancement. Two years ...
Mangalika Gunasekera Henadira Appuhamilage Kamani GH Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Sri - - 2014
Background: In Sri Lanka little is known about the prevalence of Chlamydia trachomatis (CT) infection. Objective was to determine the prevalence of CT in female patients attending sexually transmitted disease (STD) clinics in the Colombo district. Materials and Methods: A descriptive cross-sectional study was carried out for the prevalence of ...
Kong Xiang-Zhen XZ State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, Beijing, - - 2014
Magnetic resonance imaging (MRI) provides valuable data for understanding the human mind and brain disorders, but in-scanner head motion introduces systematic and spurious biases. For example, differences in MRI measures (e.g., network strength, white matter integrity) between patient and control groups may be due to the differences in their head ...
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