In the direction where the phased array coil used in parallel magnetic resonance imaging (MRI) is perpendicular to the arrangement, sensitivity falls significantly. Moreover, in a 3.0 tesla (3T) abdominal MRI, the quality of the image is reduced by changes in the relaxation time, reinforcement of the magnetic susceptibility effect, etc. In a 3T MRI, which has a high resonant frequency, the sign...

Introduction: The quality of T2-weighted images (T2WI) of the liver in the clinical setting is often degraded by ghosting artifact from various sources of motion. This artifact can obscure the margins of the liver, intra-hepatic vessels, and focal liver lesions, lowering diagnostic utility. One study has noted that such motion within the liver is more severe at 3T compared with at 1.5T [1]. Fur...

Introduction Chemical shift based water-fat separation techniques have been demonstrated for 1.5T cardiac imaging of several pathologies, including fatty infiltration of chronic infarction; arrhythmogenic right ventricular cardiomyopathy (ARVC); fatty tumors; and conditions such as myocarditis and pericarditis [1-4]. Higher field strengths (3T) are now often used in cardiac MRI due to improved ...

The reuse of filtering facepiece respirators (FFRs) after decontamination has been suggested as a strategy to conserve supplies during an influenza pandemic. The feasibility of decontaminating FFRs has been investigated under laboratory conditions; however, the need for decontamination of FFRs is not well characterized. In this study the potential for FFRs to act as fomites was examined using b...

Developing distributed and parallel programs on today’s multiprocessor architectures is still a challenging task. Particular distressing is the lack of effective performance tools that support the programmer in evaluating changes in code, problem and machine sizes, and target architectures. In this paper we introduce P 3T+ which is a performance estimator for distributed and parallel programs. ...

OBJECTIVE Cochlear implants (CIs) are standard treatment for postlingually deafened individuals and prelingually deafened children. This human cadaver study evaluated diagnostic usefulness, image quality and artifacts in 1.5T and 3T magnetic resonance (MR) brain scans after CI with a removable magnet. METHODS Three criteria (diagnostic usefulness, image quality, artifacts) were assessed at 1....

BACKGROUND AND PURPOSE In mesial temporal lobe epilepsy, MR imaging quantification of hippocampal volume and T2 signal can improve the sensitivity for detecting hippocampal sclerosis. However, the current contributions of these analyses for the diagnosis of hippocampal sclerosis in 3T MRI are not clear. Our aim was to compare visual analysis, volumetry, and signal quantification of the hippocam...

Introduction. Arterial Spin Labeling (ASL) is a non-invasive method that enables brain perfusion measurement. By magnetically labeling, the blood is used as an endogenous contrast medium. In recent years several ASL techniques have been developed for and implemented on clinical scanners with a field strength of up to 3T. ASL is a technique that, in principle, suffers from a low signal to noise ...

Introduction: Coronary vessel wall imaging with MR has the ability to obtain vessel wall thickness and lumen d invasively (1,2,3). Apart from cardiac and respiratory motion, a major challenge of coronary vessel wall imaging is th small thickness (0.5-2mm) and thus the need for high resolution. With the wider spread availability of high field 3T clin higher resolution coronary vessel wall imagin...