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Ross James R JR Sports Medicine and Shoulder Service, University of Michigan, Ann Arbor, Michigan, - - 2014
BACKGROUND:In the diagnosis and surgical treatment of cam-type femoroacetabular impingement (FAI), 3-dimensional (3D) imaging is the gold standard for detecting femoral head-neck junction malformations preoperatively. Intraoperative fluoroscopy is used by many surgeons to evaluate and verify adequate correction of the deformity. PURPOSE:(1) To compare radial reformatted computed tomography (CT) scans ...
Izquierdo-Garcia David D Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, 1, Gustave L. Levy Place, New York, NY, 10029, - - 2014
The objective of this study was to evaluate the performance of the built-in MR-based attenuation correction (MRAC) included in the combined whole-body Ingenuity TF PET/MR scanner and compare it to the performance of CT-based attenuation correction (CTAC) as the gold standard. Included in the study were 26 patients who underwent ...
Ergen Fatma Bilge FB Department of Radiology, Hacettepe University School of Medicine, Ankara, - - 2013
The purposes of this study were to assess the presence of cam and pincer morphology in asymptomatic individuals with a negative femoroacetabular impingement test, and to determine and compare the ranges of alpha angle using two measurement methods. In total, 68 consecutive patients who underwent abdominopelvic computed tomography (CT) for ...
Giles Andrew E - - 2013
A subclinical form of slipped capital femoral epiphysis (SCFE) can lead to subtle morphologic abnormalities, such as cam-type femoroacetabular impingement (FAI). Femoroacetabular impingement is a mechanical hip abnormality that typically affects young populations and leads to hip pain and premature osteoarthritis. Imaging is critical to diagnosis, whether by radiograph, magnetic ...
Xu Yiyao - - 2013
We examined 103 cases over the last five years and discussed diagnosis and treatment of alpha-fetoprotein (AFP)-negative small hepatic lesions. Small hepatic lesions (less than 2 cm in diameter) usually have no typical imaging characteristics and therefore are difficult to diagnose, especially when AFP tests provide a negative result. A ...
Magerkurth Olaf - - 2013
Purpose:To characterize the imaging appearance of femoral head-neck contour abnormalities on a short-axis magnetic resonance (MR) image compared with the usual anterior alpha angle measurements and multiple alpha angle measurements on radial reformatted MR images, with surgery as the reference standard.Materials and Methods:After institutional review board approval of this HIPAA-compliant ...
Lerch Solveig - - 2013
PURPOSE: In the diagnosis of femoroacetabular impingement (FAI), magnetic resonance imaging (MRI) and X-ray are widely accepted methods for detection. When evaluating the hip head-neck junction using MRI, oblique axial sequences are required. However, the construction and analysis of these images are restricted to specialist radiologists and surgeons in the ...
Moriya Satoshi - - 2013
Aim: This study aimed to evaluate the fucosylated fraction of alpha-fetoprotein (AFP-L3) as a marker of early hepatocellular carcinoma (HCC). We diagnosed early HCC in 15 patients (15 tumors) by gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic acid-enhanced magnetic resonance imaging and confirmed the diagnoses using new criteria of the International Consensus Group for Hepatocellular Neoplasia. ...
Kumar R - - 2013
To study the asphericity of femoral head in femoroacetabular impingement using radiological indices such as alpha angle and triangular index, and to compare the alpha angle and triangular index measured in the radiograph and MRI. The study was conducted prospectively from January 2008 to June 2009 on 50 consecutive patients ...
Chakraverty Julian K - - 2013
The purpose of this study was to use CT to determine the presence of radiologic parameters associated with cam and pincer femoroacetabular impingement (FAI) in a young population without symptoms. A retrospective review of 50 patients (age range, 20-40 years) with no current or previous hip disorder who underwent CT ...
Milone Michael T - - 2013
BACKGROUND: Incomplete correction of femoral offset and sphericity remains the leading cause for revision surgery for symptomatic femoroacetabular impingement (FAI). Because arthroscopic exploration is technically difficult, a detailed preoperative understanding of morphology is of paramount importance for preoperative decision-making. QUESTIONS/PURPOSES: The purposes of this study were to (1) characterize the ...
Cooke W R WR John Radcliffe Hospital, University of Oxford Medical School, Oxford, UK. - - 2013
Femoroacetabular impingement (FAI) is increasingly thought to play a role in the development of hip osteoarthritis, but is difficult to define clinically and on imaging. This study investigates mineralisations of the acetabular labrum (MALs), which are small, discrete foci of dense radio-opacity within the region of the acetabular labrum. The ...
Pan Bo - - 2012
Primary hepatic lymphoma is extremely rare, and only a few cases have been described on positron emission tomography (PET) or PET/computed tomography (PET/CT) imaging in the English literature. We report a case of a 55-year-old woman who presented with low-grade fever and weight loss of three months. On CT scanning, ...
Nepple Jeffrey J JJ Department of Orthopaedic Surgery, Washington University School of Medicine, 660 S Euclid, 11300 West Pavilion, Campus Box 8233, St Louis, MO, - - 2012
Three-dimensional imaging (CT and MRI) is the gold standard for detecting femoral head-neck junction malformations in femoroacetabular impingement, yet plain radiographs are used for initial diagnostic evaluation. It is unclear, however, whether the plain radiographs accurately reflect the findings on three-dimensional imaging. We therefore: (1) investigated the correlation of alpha ...
Khandani Amir H - - 2012
The objective of this study was to collect preliminary data on the predictive value of pretherapy 18F-fluorodeoxyglucose positron emission tomography in primary renal cell carcinoma (RCC) patients undergoing neoadjuvant therapy with sorafenib. As part of a clinical trial to assess the safety and feasibility of using neoadjuvant sorafenib in patients ...
Yang Jigang - - 2012
ABSTRACT: An 8-year-old boy with history of embryonal rhabdomyosarcoma resected 2 years ago presented with abdominal pain and elevated pancreatic enzymes. Acute pancreatitis was diagnosed, and appropriate therapy was started. An FDG PET/CT scan revealed a hypermetabolic region in the pancreas suspicious for malignancy; however, the patient's condition improved after ...
Curry Daniel J - - 2012
OBJECTIVE: For about 30% of epilepsy patients, pharmaceutical therapy fails to control their seizures. MR-guided laser interstitial thermal therapy (MRgLITT) allows for real-time thermal monitoring of the ablation process and feedback control over the laser energy delivery. We report on minimally invasive surgical techniques of MRgLITT and short-term follow-up results ...
Norouzi-Gheidari Nahid - - 2012
We systematically reviewed and analyzed the literature to find randomized controlled trials (RCTs) that employed robotic devices in upper-limb rehabilitation of people with stroke. Out of 574 studies, 12 matching the selection criteria were found. The Fugl-Meyer, Functional Independence Measure, Motor Power Scale, and Motor Status Scale outcome measures from ...
Yin Meili - - 2012
A smart heteronanostructure has been constructed for targeted photodynamic therapy and magnetic fluorescent imaging of cancer cells using photosensitizer-incorporated G-quadruplex DNA functionalized magnetic nanoparticles.
Scuffham J W - - 2012
An 80-year-old male with recurrent thyroid cancer and a percutaneous endoscopic gastrostomy (PEG) tube in situ was referred for radioiodine therapy and was administered 5510 MBq I-131 sodium iodide intravenously. Sequential whole-body images taken over the subsequent 7 days for dosimetric evaluation revealed an area of persistent high uptake in ...
Sommer Tanja - - 2012
Abstract Secondary lymphedema is a common complication after lymph node excision and radiotherapy in cancer therapy. Therapies are limited to symptomatic treatment. Adequate animal models to test potential surgical therapies are needed. The aim of this study was to induce a tissue environment in the hind leg of the rat ...
Atsuta Takeshi - - 2012
We report a case of bilateral idiopathic segmental ureteritis in a 52-year-old woman. The diagnosis was established by imaging studies (magnetic resonance imaging/computed tomography scan), ureteroscopy and biopsies. The left side improved spontaneously, but the right ureteral stricture persisted after 3 months of ureteral stenting. Administration of prednisolone effectively relieved obstruction ...
Lumezanu Elena - - 2012
Gout is a common metabolic disorder resulting from supersaturation of uric acid in extracellular fluid and deposition of monosodium urate crystals in tissues. Gouty arthritis typically affects the peripheral joints of the appendicular skeleton, especially the feet and hands. Gouty involvement of the spine, however, is not as rare as ...
French K F - - 2012
BACKGROUND: Thrombolytic treatment with intravenous tissue plasminogen activator (iv tPA) is the only FDA-approved therapy for acute ischemic stroke. There are risks associated with thrombolytics, including intracranial and extracranial hemorrhage and hypersensitivity reactions. Established treatment for post-tPA hemorrhage includes administration of blood products including cryoprecipitate, fresh frozen plasma, and platelets ...
Yoshida-Hata Natsuyo - - 2012
A 36-year-old man visited our hospital because of blurred vision and redness of the conjunctiva. Slit-lamp examination showed panuveitis. Two days later, he suddenly experienced dizziness, speech disturbance, paralysis of his right extremities, and gait disturbances. Neurological examinations suggested that his symptoms were caused by a left lateral medullary lesion. ...
Naha Kushal - - 2012
A 22-year-old man, diagnosed 7 weeks before with pulmonary tuberculosis and started on antitubercular therapy, presented with non-exertional retrosternal chest pain since the past week. He was diagnosed on the strength of thoracic radiograms and CT imaging to have a mediastinal abscess, which was percutaneously drained. He was continued on ...
Xie Jin - - 2012
This theme issue provides a timely collection of studies on magnetic nanoparticle-based imaging, bio-sensing, therapy and/or their combinations.
Iwasaki Norimasa - - 2011
BACKGROUND: Magnetic resonance imaging (MRI) has been widely used to characterize osteochondritis dissecans (OCD) lesions. However, the usefulness of MRI for predicting fragment stability in OCD of the humeral capitellum (capitellar OCD) remains unclear. HYPOTHESIS: Preoperative MRI cannot accurately diagnose fragment instability of capitellar OCD in overhead athletes. STUDY DESIGN: ...
Forman Evan M - - 2012
Debate continues about the extent to which postulated mechanisms of action of cognitive behavior therapies (CBT), including standard CBT (i.e., Beckian cognitive therapy [CT]) and acceptance and commitment therapy (ACT) are supported by mediational analyses. Moreover, the distinctiveness of CT and ACT has been called into question. One contributor to ...
Makis William - - 2011
A 30-year-old woman was referred for an F-18 fluorodeoxyglucose (FDG) PET/CT to rule out lymphoma, and was found to have an incidental FDG-avid right breast nodule that grew significantly in size and FDG uptake on a subsequent scan, raising suspicion of a growing breast malignancy. Histologic evaluation showed a complex ...
Lee Jae-Seong - - 2011
The newly introduced Big Bore computed tomography (CT) has a possibility to increase the tube current product scan time (mA s) for compensation of image degradation due to larger gentry opening without sound guideline. The objective of this paper is to derive optimal scan conditions for Big Bore CT scanner, ...
Zhang Lei - - 2011
Multifunctional and degradable nanogels encapsulating both model drug (fluorescently labeled dextran) and imaging reagent (monodisperse Fe(3)O(4) nanoparticles) were developed by polymerizing zwitterionic monomers with a disulfide crosslinker. Results show that the nanogels have a hydrodynamic size of about 110 nm in saline solution and their size remained unchanged for over 6 ...
Mecwan Marvin M - - 2011
Chitosan (CTS) is biocompatible, biodegradable, and can be formed into 3D porous structures for bone tissue engineering applications. Although studies have reported on the effects of molecular weight (MW) on CTS physicochemical properties, studies evaluating CTS biological property relationships often do not account for MW that confounds interpretation of study ...
Stein T - - 2011
PURPOSE: Adequate labral restorations after Bankart repair have been demonstrated in cadaver models for knot-tying and knotless anchors and in vivo by magnetic resonance imaging for knot tying. The influence of glenoidal bio-degradation on clinical outcome, and conclusions regarding drill hole enlargement and foreign body reactions remain controversial. METHODS: The ...
Kingma Raoul - - 2011
Objective: Registration of ultrasound to computed tomography (CT) images is used in several image-guided procedures, including laparoscopic surgery and radiation therapy. Conventional approaches use an external tracker calibrated to the ultrasound transducer and CT system, but several calibration steps are required. Registration can also be performed by aligning image features ...
Müller Hans-Peter - - 2011
The MRI-based evaluation of the quantity and regional distribution of adipose tissue is one objective measure in the investigation of obesity. The aim of this article was to report a comprehensive and automatic analytical method for the determination of the volumes of subcutaneous fat tissue (SFT) and visceral fat tissue ...
Jayasekera Bodiabaduge A P - - 2011
A 13-year-old girl presented with an afebrile seizure followed by prolonged confusion and visual hallucinations. Initial investigations in the form of blood tests, cerebrospinal fluid analysis and head imaging by CT, were normal. She represented with two further episodes within a period of 3 weeks. Further investigations considering infective, metabolic ...
Che Hyeongsu - - 2011
Selective redox degradation of chlorinated aliphatics by Fenton reaction in pyrite suspension was investigated in a closed system. Carbon tetrachloride (CT) was used as a representative target of perchlorinated alkanes and trichloroethylene (TCE) was used as one of highly chlorinated alkenes. Degradation of CT in Fenton reaction was significantly enhanced ...
Lavini Cristina - - 2010
It is widely recognised that the measurement of the arterial input function (AIF) is a key issue and a major source of errors in the pharmacokinetic modelling of dynamic, contrast-enhanced magnetic resonance imaging (DCE-MRI) data, and the modality of the AIF determination is still a matter of debate. In this ...
Rothe J H - - 2010
To compare lesion volume determination by applying diameter measurement and three different segmentation algorithms at different slice thicknesses reconstructed from computed tomography (CT) of a phantom model for hepatic colorectal metastases. Based on CT attenuation measurements obtained retrospectively from 20 patients with colorectal liver metastases, a phantom model was designed ...
Ambarki K - - 2011
Automatic assessment of brain volumes is needed in research and clinical practice. Manual tracing is still the criterion standard but is time-consuming. It is important to validate the automatic tools to avoid the problems of clinical studies drawing conclusions on the basis of brain volumes estimated with methodologic errors. The ...
Cheng Huaibing - - 2011
To analyze cardiac magnetic resonance imaging (CMR) characteristics in patients with isolated left ventricular noncompaction (IVNC) and assess its value in the diagnosis of IVNC in a Chinese adult Han population. We collected a consecutive series of 30 patients with IVNC from January 1, 2007, to December 31, 2008. During ...
Amundsen Brage Høyem - - 2011
Non-invasive imaging methods like echocardiography and magnetic resonance imaging (MRI) are very valuable in longitudinal follow-up studies of cardiac function in small animals. To be able to compare results from studies using different methods, and explain possible differences, it is important to know the agreement between these methods. As both ...
Ricard Geneviève - - 2010
Some studies have suggested an association between hypocholesterolemia and intracerebral hemorrhage (ICH). In the SPARCL trial, statin use increased ICH risk. We tested the hypothesis that use of statins affects the volume of spontaneous ICH and contributes to the progression of ICH volume between baseline and follow-up CT scans. Consecutive ...
Brandts Anne - - 2010
The purpose of this study was to determine the ability of 7 T cardiac magnetic resonance imaging (MRI) to quantitatively assess left ventricular volumes, mass, and function from cine short-axis series and left ventricular diastolic filling from velocity-encoded MRI in 10 healthy volunteers. As comparative "gold standard," the corresponding measures ...
Tarunya A - - 2010
Background In order to improve the sensitivity of neuroprotective trials in multiple sclerosis (MS) using brain atrophy measures we assessed whether it was possible to predict those patients who had high rates of change in brain volume. Methods 22 primary progressive MS (PPMS) patients and seven healthy controls had multiple ...
Hof Irene E - - 2010
Left Atrial Volume and Function Assessment.  In patients with atrial fibrillation undergoing catheter ablation, magnetic resonance imaging (MRI) can determine left atrial (LA) volume and function before and after ablation. The most accurate, but time consuming, method to determine LA volume is the multiple slice method (MSM), which involves manual ...
Morey Rajendra A - - 2010
Large-scale longitudinal studies of regional brain volume require reliable quantification using automated segmentation and labeling. However, repeated MR scanning of the same subject, even if using the same scanner and acquisition parameters, does not result in identical images due to small changes in image orientation, changes in prescan parameters, and ...
Nishino Mizuki - - 2011
Determine inter- and intraobserver variability of computed tomography (CT) tumor volume measurements in advanced non-small-cell lung cancer (NSCLC) patients treated in a Phase II clinical trial using chest CT. Twenty-three advanced NSCLC patients with a total of 53 measurable lung lesions enrolled in a Phase II, multicenter, open-label clinical trial ...
Tourdias T - - 2011
Stroke volume, an increasingly used end point in phase II trials, is considered stationary at least 30 days after the ictus. We investigated whether information conveyed by MR imaging measurements of the "final" infarct volume could be assessed as early as the subacute stage (days 3-6), rather than waiting for ...
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