Coronary plaque and thrombus characterization at 3.0 Tesla holds great potential for clinical benefit but problems still exist with coronary lumen image quality at 3.0 Tesla, which is a pre-requisite for these techniques. This study shows that despite implementation of parallel transmit technology to improve radiofrequency (B1 field) homogeneity, balanced steady-state-free-precession (b-SSFP) C...

Abstract Background This work aims at elucidating the role of adding complementary T2 mapping to routine 1.5 Tesla MRI protocol in articular knee cartilage assessment for early detection osteoarthritis, and also, comparing thickness relaxation times between case control groups regarding compartments affection. Results Both sensitivities specificities were 73.3% 100%, respectively, standard MR a...

We present TESLA-M and TESLA, two novel automatic machine translation evaluation metrics with state-of-the-art performances. TESLA-M builds on the success of METEOR and MaxSim, but employs a more expressive linear programming framework. TESLA further exploits parallel texts to build a shallow semantic representation. We evaluate both on the WMT 2009 shared evaluation task and show that they out...

Magnetic fields are present everywhere in our environment. They are commonly measured in Tesla (T), the international unit for magnetic flux density. One Tesla is a very high magnetic field. Human exposures to such high fields occur only with magnetic resonance imaging machines (MRI machines which are used for medical imaging), which produce magnetic field levels up to a few Tesla. To describe ...

The advantage of the higher signal-to-noise ratio (SNR) of 3-Tesla magnetic resonance imaging (3-Tesla) has the possibility of contributing to the improvement of high spatial resolution without causing image deterioration. In this study, we compared SNR and the apparent diffusion coefficient (ADC) value with 3-Tesla as the condition in the diffusion-weighted image (DWI) parameter of the 1.5-Tes...

Background From January, 2010 to September, 2011, 224 patients who underwent pulmonary vein isolation and debulking of the septal and posterior walls of the left atrium as part of RFA procedure for atrial fibrillation were imaged on a 3 Tesla MR scanner (Verio, Siemens Healthcare). Time interval between the conclusion of ablation procedure and placing the patient in the scanner was typically le...

Wireless Sensor Networks (WSNs) are susceptible to various attacks as they are placed in hostile environments. Several security and authentication mechanisms are proposed for in terms of key exchange mechanisms, handshake protocols, and other routing protocols. The proposed triple key based broadcast authentication protocol is compared with the several other existing security schemes in WSN. Th...