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Hani Ahmad Fadzil Mohd AF Centre for Intelligent Signal and Imaging Research, Department of Electrical and Electronics Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, Perak 31750, - - 2015
Quantitative assessment of knee articular cartilage (AC) morphology using magnetic resonance (MR) imaging requires an accurate segmentation and 3D reconstruction. However, automatic AC segmentation and 3D reconstruction from hydrogen-based MR images alone is challenging because of inhomogeneous intensities, shape irregularity, and low contrast existing in the cartilage region. Thus, the ...
Motuel Julie - - 2014
IntroductionBrain midline shift (MLS) is a life-threatening condition that requires urgent diagnosis and treatment. We aimed to validate bedside assessment of MLS with Transcranial Sonography (TCS) in neurosurgical ICU patients by comparing it to CT.MethodsIn this prospective single centre study, patients who underwent a head CT were included and a ...
Kaiser Mandy - - 2014
Abstract Magnetic resonance imaging (MRI) has great potential as an imaging modality for guiding minimally invasive interventions because of its superior soft tissue contrast and the possibility of arbitrary slice positioning while avoiding ionizing radiation and nephrotoxic iodine contrast agents. The major constraints are: limited patient access, the insufficient assortment ...
Qurashi Abdulaziz A AA Diagnostic Imaging Department, School of Medicine and Medical Science, University College Dublin, Belfield, Dublin 4, Dublin, Ireland Faculty of Applied Medical Sciences, Taibah University, Medina, Kingdom of Saudi Arabia - - 2014
Diagnostic reference levels (DRLs) are an important optimisation tool, which aid in identifying abnormally high dose levels. These are currently not available in Saudi Arabia, and this research aims to remedy this. CT dose data (DLP and CTDIvol) were collected for a minimum number of 10 adult patients of average ...
Youssef Ahmed A Department of Otolaryngology-Head and Neck Surgery, Ohio State University, Columbus, Ohio, United States ; Department of Otolaryngology-Head and Neck Surgery, Alexandria University, El Azareeta, Alexandria, - - 2014
Introduction Endonasal endoscopic transpterygoid approaches are commonly used techniques to access the infratemporal fossa and parapharyngeal space. Important endoscopic endonasal landmarks for the poststyloid parapharyngeal space, hence the internal carotid artery, include the mandibular nerve at the level of foramen ovale and the lateral pterygoid plate. This study aims to ...
Toftegaard Jakob J Department of Oncology, Aarhus University Hospital, Aarhus 8000, - - 2014
Implanted gold markers for image-guided radiotherapy lead to streaking artifacts in cone-beam CT (CBCT) scans. Several methods for metal artifact reduction (MAR) have been published, but they all fail in scans with large motion. Here the authors propose and investigate a method for automatic moving metal artifact reduction (MMAR) in ...
Kaschka I N IN Department of Neuroradiology, University Hospital Erlangen, Schwabachanlage 6, 91054, Erlangen, Germany, - - 2014
It has been reported that the extent of intravascular thrombi and the quality of collateral filling in computed tomography (CT) angiography are predictive for the clinical outcome in patients with acute stroke. We hypothesized that multi-phase four-dimensional CTA (4D-CTA) allows better assessment of clot burden and collateral flow compared with ...
Kromhout K K Department of Veterinary Medical Imaging and Small Animals Orthopedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, - - 2014
Cavalier King Charles Spaniels (CKCS) have a high prevalence of Chiari-like malformation (CM). Herniation of the cerebellum into the foramen magnum is a key diagnostic feature for CM. Midsagittal MR images are the preferred technique for visualizing cerebellar herniation (CH). To investigate whether CT can be used to diagnose CH. ...
Guo Y X YX Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, - - 2014
The wedge-shaped infratemporal fossa is a constricted space and has long been a surgical challenge, mainly due to difficulties in access. Three-dimensional (3D) reconstruction of the skull, internal carotid artery (ICA), and internal jugular vein (IJV) was carried out using enhanced computed tomography (CT) data, to measure the safety distances ...
Terry Jesse L JL Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR - - 2014
Objective-To construct and optimize a fiducial marker suitable for both CT and MRI. Sample-Fiducial markers containing serial dilutions of iopamidol mixed with water. Procedures-IV tubing sets were infused with serial dilutions (0% to 100%; increments of 10%) of iopamidol. Tubing ends were sealed; additional seals were added to create an ...
Del Brutto Oscar H OH School of Medicine, Universidad Espíritu Santo-Ecuador, Guayaquil, Ecuador; Department of Neurology, Hospital-Clínica Kennedy, Guayaquil, Ecuador. Electronic address: - - 2014
Studies looking for an association between incompleteness of the Circle of Willis (CoW) and small vessel disease (SVD) markers are scarce and conflicting. We aimed to evaluate this association in an unbiased population-based study conducted in Atahualpa (rural Ecuador). Atahualpa residents 60 years of age or more were identified during a ...
Harcourt-Brown T R TR Langford Veterinary Services, University of Bristol, Bristol, - - 2014
The importance of Chiari-like malformation (CM) in the generation of clinical signs or the formation of syringomyelia in dogs is incompletely understood, partly because the prevalence of various CM definitions in unaffected dogs is unknown. The aims were: to estimate the prevalence of CM in dogs asymptomatic for CM or ...
Dietrich Lindsey N LN Division of Orthopedic Surgery, University of Alabama at Birmingham, Birmingham, AL, - - 2014
Arthroscopic decompression of the suprascapular nerve (SSN) at the suprascapular notch is a technically demanding procedure. Additional preoperative and intraoperative information may assist surgeons. The purpose of this study was to (1) identify which imaging modality most accurately represents the anatomic distance to the notch and (2) quantify the mean ...
Hoey Edward T D ET Department of Radiology, Heart of England NHS Foundation Trust, Birmingham B9 5SS, - - 2014
Accurate and reproducible measurement of aortic root dimensions is essential to inform clinical decision making. Transthoracic echocardiography (TTE) is the first line test for assessment of the aortic root but has potential limitations due to its limited field of view and restricted acoustic windows. Cardiac magnetic resonance imaging (MRI) is ...
Chan Maria F MF Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA - - 2014
To evaluate visibility, artifacts, and distortions of various commercial markers in magnetic resonance imaging (MRI), computer tomography (CT), and ultrasound imaging used for radiotherapy planning and treatment guidance. We compare 2 solid gold markers, 4 gold coils, and 1 polymer marker from 3 vendors. Imaging modalities used were 3-T and ...
Crane Catherine C Department of Orthopaedic Surgery, The Canterbury Hospital, Canterbury, NSW, - - 2014
Patient specific guides (PSG's) were developed to improve overall component alignment in total knee arthroplasty (TKA). The aim of this study was to undertake a comparative radiographic study of two commonly used PSG and determine whether the radiographic technique used to construct the PSG had a significant effect on overall ...
Fonov V V Montreal Neurological Institute (MNI), McGill University, Montreal, QC, - - 2014
The field of spinal cord MRI is lacking a common template, as existing for the brain, which would allow extraction of multi-parametric data (diffusion-weighted, magnetization transfer, etc.) without user bias, thereby facilitating group analysis and multi-center studies. This paper describes a framework to produce an unbiased average anatomical template of ...
Fei Xiaolu - - 2014
Radio Frequency Identification(RFID) has been widely used in healthcare facilities, but it has been paid little attention whether RFID applications are safe enough under healthcare environment. The purpose of this study is to assess the effects of RFID tags on Magnetic Resonance(MR) imaging in a typical electromagnetic environment in hospitals, ...
Shimada Hirofumi H Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, - - 2014
We analyzed the prognostic factors in patients with metastatic bone tumors and evaluated the efficacy of different modalities in identifying the primary lesions. A total of 145 patients with bone metastases who attended the orthopaedic outpatient clinic were included in this study. The most frequent site of bone metastases was ...
Sinha Rakesh R 1 Department of Clinical Radiology, Warwick Hospital, South Warwickshire National Health Service Foundation Trust, Lakin Rd, Warwick, CV34 5BW, - - 2014
OBJECTIVE. The purpose of this study is to assess the feasibility and accuracy of small-bowel length measurement on MR enterography examinations compared with surgical in vivo measurements. SUBJECTS AND METHODS. Thirty-one consecutive patients who were undergoing elective laparotomy for Crohn disease were included in the study. These patients underwent a ...
Durand Sébastien S Radiology Department, Centre Chirurgical Marie Lannelongue, 133 Avenue de la Résistance, 92350, Le Plessis-Robinson, - - 2014
To evaluate noise level and contrast-to-noise ratio (CNR) with various kVp-mAs pairs producing the same computed tomography dose index (CTDI) value. The 80 kVp and new 70-kVp settings were compared. The noise was measured in 10 ovoid water phantoms with different diameters from 10 cm to 28 cm. Contrast was obtained from CTs ...
LeBedis Christina A CA Department of Radiology, Boston Medical Center, Boston University School of Medicine, FGH Building, 820 Harrison Ave, Boston, MA, 02118, USA, - - 2014
The purpose of this study was to determine the efficacy of CT to predict the development of bile leaks in hepatic trauma. This HIPAA-compliant retrospective study was IRB approved and consent was waived. All patients who sustained hepatic trauma between January 1, 2006, and January 31, 2012, and who underwent ...
Silvestrini Matthew T MT Department of Neurological Surgery, University of California, San Francisco, San Francisco, - - 2014
Intracerebral cell transplantation is being pursued as a treatment for many neurological diseases, and effective cell delivery is critical for clinical success. To facilitate intracerebral cell transplantation at the scale and complexity of the human brain, we developed a platform technology that enables Radially Branched Deployment (RBD) of cells to ...
Servaes Sabah S Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, - - 2014
CT and MRI are both used for abdominal staging of pediatric renal tumors. The diagnostic performance of the two modalities for local and regional staging of renal tumors has not been systematically evaluated. To compare the diagnostic performance of CT and MRI for local staging of pediatric renal tumors. The ...
Balogova Sona S From the *Nuclear Medicine, Hôpital Tenon, AP-HP and Université Pierre et Marie Curie, Paris, France; †Comenius University and St Elisabeth Oncology institute, Bratislava, Slovakia; ‡Radiology, and §Medical Oncology, Hôpital Tenon, AP-HP and Université Pierre et Marie Curie, Paris, - - 2014
Several treatments are proposed for castration-resistant prostate cancer (CRPC) at the metastatic stage. Monitoring of response using serum prostate-specific antigen (PSA) levels (sPSA) can be insufficient at this stage. Imaging has been proposed, in particular, nuclear medicine functional imaging and MRI, since response of predominant bone metastases is hardly evaluable ...
Nguyen Ba D BD From the Department of Radiology, Mayo Clinic, Scottsdale, - - 2014
Clear cell adenocarcinoma of the urethra is a rare and aggressive tumor of female gender preponderance. This neoplasm, the origin of which is still widely debated, has been reported with CT and MRI in case reports and small series. To the previously published conventional cross-sectional imaging description, the authors add ...
Betzer Oshra - - 2014
A critical problem in the development and implementation of stem cell-based therapy is the lack of reliable, non-invasive means to image and trace the cells post-transplantation and evaluate their bio-distribution, final fate and functionality. In this study, we developed a gold nanoparticle-based CT imaging technique for longitudinal mesenchymal stem cell ...
Duan Yi-Li - - 2014
To determine the optimal threshold of 18 F-fluorodexyglucose (18 F-FDG) positron emission tomography CT (PET/CT) images that generates the best volumetric match to internal gross target volume (IGTV) based on four-dimensional CT (4DCT) images. Twenty patients with non-small cell lung cancer (NSCLC) underwent enhanced three-dimensional CT (3DCT) scan followed by ...
Intven Martijn M Department of Radiotherapy, University Medical Center Utrecht, Utrecht, The - - 2014
Patient selection for organ sparing treatment after good response to neo-adjuvant chemoradiation (CRT) for locally advanced rectal cancer is challenging as no optimal restaging modality is available after CRT. In this study, we assessed the value of dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) for rectal cancer pathological response prediction. ...
Cornelis F F Department of Radiology, Pellegrin Hospital, Place Amélie Raba Léon, 33076, Bordeaux, France, - - 2014
To retrospectively evaluate the ability of magnetic resonance (MR) imaging to differentiate low from high Fuhrman grade renal cell carcinoma (RCC). MR images from 80 consecutive pathologically proven RCC (57 clear cell, 16 papillary and 7 chromophobe) were evaluated. Double-echo chemical shift, dynamic contrast-enhanced T1- and T2-weighted images and apparent ...
Saito Katsuya K Department of Neurosurgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan, - - 2014
Pilocytic astrocytomas (PAs) are the most common brain tumor in children and typically have an excellent prognosis. However, some PAs show histologically anaplastic features. It is reported that PAs with anaplastic features often need the postoperative radiation and chemotherapy due to aggressiveness such as early local recurrence and dissemination. We ...
Zhang Ye Y From the *Public Health School, †Norman Bethune Medical School, and ‡Prosthodontics Department of Stomatological Hospital, Jilin University; and Departments of §Respiration and ∥Radiology, the first Affiliated Hospital of Jilin University, Changchun, Jilin, - - 2014
Insular lobe is folded deep in the sylvian fissure, and the transsylvian transinsular approach is one of the most commonly used methods for lesions in the insula, basal ganglia, amygdala, and hippocampus. Hence, it is essential for surgeons to master a specific anatomic knowledge of the insula and its adjacent ...
Xia Ao A Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210046, China; School of Chemistry & Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, - - 2014
Dual-modality imaging with magnetic resonance (MR) and upconversion luminescence (UCL) is a promising technique for molecular imaging in biomedical research. Multifunctional lanthanide-based nanoparticles have been widely investigated as agents for contrast enhanced MR and fluorescence imaging. However, the use of rare earth fluoride nanoparticles for dual-modality imaging of T2-weighted MR ...
Queiroz Marcelo A MA Department of Medical Radiology, Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland, - - 2014
The purpose of this study was to analyze whether diffusion-weighted imaging (DWI) adds significant information to positron emission tomography/magnetic resonance imaging (PET/MRI) on lesion detection and characterization in head and neck cancers. Seventy patients with different head and neck cancers were enrolled in this prospective study. All patients underwent sequential ...
Chiappa V V Department of Obstetrics and Gynecology, San Gerardo Hospital Monza, University of Milan-Bicocca, - - 2014
To compare two-dimensional (2D) and three-dimensional (3D) transvaginal ultrasound with magnetic resonance imaging (MRI) as gold standard in the assessment of parametrial infiltration of cervical cancer, and to determine if all parts of the cervix are equally assessable with ultrasound. Patients with histologically confirmed macroscopically evident cervical cancer were staged ...
Arima H H Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, - - 2014
Study design:Retrospective chart review.Objectives:Each type of intramedullary spinal cord tumor (IMSCT) has specific anatomical and pathological features visible on magnetic resonance (MR) imaging. The purpose of this study was to investigate the accuracy of preoperative IMSCT diagnosis using our diagnostic chart of tumor-specific MR imaging findings.Setting:Hamamatsu, Japan.Methods:From 2009 to 2013, ...
Zeng Yongyi - - 2014
Multifunctional theranostic nanoparticles represent an emerging agent with the potential to offer extremely sensitive diagnosis and targeted cancer therapy. Herein, we reported the synthesis and characterization of a multifunctional theranostic agent (referred to LA-LAPNHs) for targeted MRI/CT dual-mode imaging and photothermal therapy of hepatocellular carcinoma. The LA-LAPNHs were characterized as ...
Zhang Xuhui X Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, - - 2014
To compare dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) and T2-weighted imaging (T2WI) at 3.0T for detection of prostate cancer. Patients with elevated prostate-specific antigen underwent T2WI and DCE-MRI prior to prostate needle biopsy. The sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of T2WI and ...
Gifford Peter Blair PB Princess Alexandra Hospital, Queensland, Australia - - 2014
Medical imaging of the distal tibiofibular joint requires reliable and simple tools to identify disruption of the syndesmosis. We present an anatomical feature, the "tibiofibular line," which appears on axial computed tomography (CT) images of normal ankles. This feature is a straight line that connects the anterolateral surface of the ...
Kong Chung Y CY 1 Department of Radiology, Massachusetts General Hospital, Institute for Technology Assessment, 101 Merrimac St, 10th Fl, Boston, MA - - 2014
OBJECTIVE. The purpose of this article is to evaluate the cost effectiveness of a treatment strategy for symptomatic uterine fibroids that uses MRI-guided focused ultrasound as a first-line therapy relative to uterine artery embolization (UAE) or hysterectomy. MATERIALS AND METHODS. We developed a decision-analytic model to compare the cost effectiveness ...
Raman Siva P SP 1 Both authors: Department of Radiology, Johns Hopkins University, JHOC 3251, 601 N Caroline St, Baltimore, MD - - 2014
OBJECTIVE. The purpose of this article is to review the utility of CT in diagnosing bladder malignancies, CT protocol options that may improve the conspicuity of bladder tumors, suggestive imaging features, and potential mimics. CONCLUSION. Although evaluation of the bladder has traditionally been considered purely the realm of cystoscopy, many ...
Winant Abbey J AJ 1 Department of Radiology, Weill Cornell Medical College, New York, - - 2014
OBJECTIVE. The purpose of this article is to describe the imaging and clinicopathologic characteristics of esophageal gastrointestinal stromal tumors (GISTs) and to emphasize the features that differentiate esophageal GISTs from esophageal leiomyomas. MATERIALS AND METHODS. A pathology database search identified all surgically resected or biopsied esophageal GISTs, esophageal leiomyomas, and ...
Miyake Kanae Kawai KK 1 Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Hospital, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, - - 2014
OBJECTIVE. The purpose of this study was to assess the diagnostic value of (18)F-FDG PET/CT and MRI in predicting the clinicopathologic subtypes of breast cancer. MATERIALS AND METHODS. The cases of 89 patients with mass-type invasive breast cancer who underwent FDG PET/CT and MRI before therapy were retrospectively analyzed. Eight ...
Caglar V V Department of Anatomy, Faculty of Medicine, Namık Kemal University, Tekirdag, Turkey. - - 2014
The aim of this study is to assess and document the dimensions of the normal spleen measured on computed tomography (CT) images with the normal splenic volume measured by Cavalieri principle on CT images and thereby serve as a baseline for comparison in cases of splenomegaly using abdominal CT. To ...
Choong Cliff K C CK Monash University (MMC), The Knox Hospital and The Valley Hospital, Melbourne, Australia - - 2014
The 320-slice computed tomography (CT) provides three-dimensional and dynamic imaging resulting in the ability to assess motion analysis between two adjacent structures (the fourth dimension). Differential movements between two adjacent structures would indicate that there is no fixation between the two structures. Eight patients with non-small-cell lung cancers located adjacent ...
Pliss Artem A Department of Biological Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, - - 2014
We present a 3-D mapping in WI38 human diploid fibroblast cells of chromosome territories (CT) 13,14,15,21, and 22, which contain the nucleolar organizing regions (NOR) and participate in the formation of nucleoli. The nuclear radial positioning of NOR-CT correlated with the size of chromosomes with smaller CT more interior. A ...
Pilapong Chalermchai C Center of Excellence for Molecular Imaging (CEMI), Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand. Electronic address: - - 2014
We report herein the development of a smart magnetic nanoparticle-aptamer probe, or theranostic nanoprobe, which can be used for targeted imaging and as a drug carrier for hepatocellular carcinoma treatment. The theranostic nanoprobe combines the delivery potential of a non-toxic cellulose derivative polymer, specific capability of cancer-specific molecule (DNA-based EpCAM ...
Luo Guopei G Department of Pancreatic and Hepatobiliary Surgery, Shanghai Cancer Center, Fudan University, Shanghai 200032, P.R. - - 2014
18F-Fluorodeoxyglucose positron emission tomo-graphy and computed tomography (18F-FDG PET/CT) has limited value in well-differentiated neuroendocrine tumors. The value of 18F-FDG PET/CT in non-functioning pancreatic neuroendocrine tumors, which are often poorly differentiated, malignant, and present at an advanced stage, was also thought to be limited. This study was performed to evaluate ...
Rose Honor M HM European Research Council (ERC) Project BiosensorImaging, Department of Structural Biology, Leibniz-Institut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany; - - 2014
Magnetic resonance imaging (MRI) is seriously limited when aiming for visualization of targeted contrast agents. Images are reconstructed from the weak diamagnetic properties of the sample and require an abundant molecule like water as the reporter. Micromolar to millimolar concentrations of conventional contrast agents are needed to generate image contrast, ...
Park Sung Yoon SY Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul, 135-710, - - 2014
To retrospectively compare computed tomography (CT) sensitivities of large (≥3 cm) adenoma and cortical carcinoma. Between January 2004 and November 2012, 43 non-oncologic patients with 43 adrenal masses [31 large adenomas, and 12 carcinomas] underwent unenhanced CT, early contrast-enhanced CT, and delayed contrast-enhanced CT scans prior to adrenalectomy. Three types of ...
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