Introduction. Asymptomatic bacteriuria (ASB), occurring in 2-11% of pregnancies, is a major predisposition to the development of pyelonephritis, which is associated with obstetrical complications, such as preterm labor and low birth weight infants. The aim of this study was to determine the prevalence of ASB, the antibacterial susceptibilities of the isolated microorganisms and the associated r...

We propose a correction method for magnetic resonance (MR) images to eliminate the effects of the inhomogeneity of the radio-frequency (RF) pulses and of the sensivity of the RF reception particularly in the case of T1-weighted images. In this case the effects of the pulse inhomogeneities vary with the tissues, which prevents the use of simpler correction techniques based on a global multiplica...

Extensive air showers are associated with transient radio emission, which could provide a new mode of detection of UHECR with an important target volume and a high duty cycle. The Codalema experiment has been set up and is running in the Radio Observatory in Nancay, France, to investigate this possibility. The apparatus is composed of an antenna array overlapped by a ground particle array. A se...

We propose a method to reduce the noise and to eliminate the effects of the inhomogeneity of the Radio-Frequency (RF) pulses and of the sensivity of the RF reception, particularly in the case of MR T-weighted images acquired with a low-field MRI system. In T-weighted images the effects of the pulse inhomogeneities vary with the tissues. Consequently the bias field is not strictly multiplicati...

The problem of detecting abrupt changes of the dynamics in linear systems is addressed. First the generalized likelihood ratio test for detection in a state space model is examined. This test can be interpreted as a simultaneous maximum likelihood (ML) estimator of the jump time and jump magnitude. The problem is that this test requires a large number of matched lters which increases linearly w...

The purpose of this study was to evaluate the relationship between the levels of βhCG cervicovaginal secretions and preterm delivery. A cross-sectional analysis was used and cerevicovaginal secretion specimens were obtained from women in their 24th-36th weeks (every 6 days) of pregnancy who presented the pregnancy clinic with preterm labor manifestations. Frozen samples (at -20°C) were assayed ...

UNLABELLED Malignant lymphomas represent approximately 5% of all malignant neoplasm of the head and neck and may involve nodal or extranodal sites. The head and neck region is the second most frequent anatomical site of extranodal lymphomas (after the gastrointestinal tract). Most are non-Hodgkin lymphomas (NHL) of B-cell lineage. Hodgkin's lymphoma (HL) rarely occurs in extranodal site. THE AI...

Introduction Perfluorooctylbromide (PFOB) is a promising contrast agent for in vivo F MRI owing to its biocompatibility. After intravenous injection, PFOB emulsions are known to localize in the reticuloendothelial system (RES), mainly the liver and spleen. PFOB nanoparticles (PFOB NP) accumulate within macrophages [1] and thus allow quantitative MRI in these organs. However, the complex multipe...

BACKGROUND Wall motion abnormality in the apical legion of the left ventricle (LV) with stagnant flow alone is not sufficient to identify patients at high risk for LV thrombus formation among those with first anterior acute myocardial infarction (AMI). The aim of this study was to identify the determinants of LV thrombus formation using contrast echocardiography. METHODS AND RESULTS In 75 pat...

OBJECTIVES Our purpose is to validate previously described massive transfusion (MT) scoring in our Transfusion Trauma Registry. DESIGN A retrospective cohort of adult trauma patients. SETTING Trauma and Emergency Intensive Care Unit of a tertiary hospital. PATIENTS Patients with severe trauma (injury severity score>15) admitted from October 2006 to July 2009. INTERVENTIONS None. VARIA...