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See detailDuplex ultrasound as first-line screening test for patients suspected of renal artery stenosis: prospective evaluation in high-risk group.
NCHIMI LONGANG, Alain ULg; Biquet, J. F.; Brisbois, D. et al

in European Radiology (2003), 13(6), 1413-9

Our objective was to assess how far the progress in ultrasound devices has increased feasibility and accuracy of Duplex ultrasound (DUS) for the diagnosis of renal artery stenosis (RAS), in a population ... [more ▼]

Our objective was to assess how far the progress in ultrasound devices has increased feasibility and accuracy of Duplex ultrasound (DUS) for the diagnosis of renal artery stenosis (RAS), in a population with high prevalence of atherosclerotic renovascular lesions. Ninety-one hypertensive patients with atherosclerotic disease were prospectively evaluated by both DUS and digital subtraction angiography (DSA) of the renal arteries. Only proximal criteria (peak systolic velocity >180 mm/s or renal-to-aortic ratio >3.5) were used for the diagnosis of significant RAS (>60% narrowing). For both techniques, two readers were involved for interobserver variability study. Two hundred one arteries were demonstrated by DSA on 182 available kidneys. The prevalence of RAS among the study group was 37%. Sixteen of the 19 accessory arteries were not seen at DUS; in 8 patients, one renal artery was not seen at DUS (feasibility 91%). On the 177 arteries assessed, in comparison with DSA, DUS yielded 96, 91, and 97% mean values of accuracy, sensitivity, and specificity, respectively. Kappa for interobserver agreement was 0.95 for DUS and 0.92 for DSA. Although still unreliable for the detection of accessory arteries, DUS is in our experience an accurate and reproducible diagnostic test for RAS. [less ▲]

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See detailSpace-Time Adaptive Processing (STAP): an Overview
Verly, Jacques ULg

Scientific conference (2003)

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See detailActualités de droit pénal européen
Flore, Daniel ULg

Book published by La Charte (2003)

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See detailCarbon and nitrogen isotopic ratios of the seagrass Posidonia oceanica: Depth-related variations
Lepoint, Gilles ULg; Dauby, Patrick ULg; Fontaine, Michael ULg et al

in Botanica Marina (2003), 46(6), 555-561

Nitrogen (delta(15)N) and carbon (delta(13)C) isotopic compositions of Posidonia oceanica were determined during three seasons along a bathymetric gradient (438 m depth).The delta(15)N values are low (2.2 ... [more ▼]

Nitrogen (delta(15)N) and carbon (delta(13)C) isotopic compositions of Posidonia oceanica were determined during three seasons along a bathymetric gradient (438 m depth).The delta(15)N values are low (2.2+/-0.9%) and variable.They do not show any relation to depth or sampling dates. There is a significant difference between the delta(15)N values of the youngest and the oldest leaves, probably as a result of N resorption and senescing during leaf ageing. The delta(13)C values of young Posidonia leaves vary with depth, showing the relationship between delta(13)C values and primary productivity rate, and the use of a bicarbonate/CO2 mixture as an inorganic carbon source. The delta(13)C values of the oldest P. oceanica leaves are depleted in C-13 compared to those of young leaves. This modification of the C-13 signatures in relation to leaf age is particularly important between 20 and 29 m depth. This modification could be related to photosynthetic rate change during ageing, but also to change in carbohydrate composition and content. [less ▲]

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See detailDetuning effects on the mazer
Martin, John ULg; Bastin, Thierry ULg

in Physicalia Magazine (2003), 25

A short review of the theoretical studies of the cold atom micromaser (mazer) is presented. Existing models are then improved by considering more general working conditions. Especially, the mazer physics ... [more ▼]

A short review of the theoretical studies of the cold atom micromaser (mazer) is presented. Existing models are then improved by considering more general working conditions. Especially, the mazer physics is investigated in the situation where a detuning between the cavity mode and the atomic transition frequency is present. Interesting new effects are pointed out. Especially, it is shown that the cavity may slow down or speed up the atoms according to the sign of the detuning and that the induced emission process may be completely blocked by use of a positive detuning. The transmission probability of ultracold atoms through a micromaser is also studied and we generalize previous results established in the resonant case. In particular, it is shown that the velocity selection of cold atoms passing through the micromaser can be very easily tuned and enhanced using a nonresonant field inside the cavity. [less ▲]

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See detailA taxonomic reassessment of the Vittiaceae (Hypnales, Bryopsida):evidence from phylogenetic analyses of combined chloroplast and nuclear sequence data
Vanderpoorten, Alain ULg; Goffinet, B.; Hedenäs, L. et al

in Plant Systematics & Evolution (2003), 241

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See detailThe alder populations of Europe
Claessens, Hugues ULg

in Gibbs, John; Van Dijk, Cees; Webber, Joan (Eds.) Phytophthora disease of alder in Europe (2003)

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See detailSpectroscopic characterisation of Pd/SiO2 sol-gel prepared catalysts
Beketov, Gennadiy; Heinrichs, Benoît ULg; Lambert, Stéphanie ULg et al

Poster (2003)

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See detailClimatic Modelling of Black Grouse population dynamics: a game or a tool?
Loneux, Michèle ULg; Lindsey, James ULg

in Sylvia (2003), 39(supplement), 43-52

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See detailUn fantôme au XVIIe siècle
George, Philippe ULg

in Dumortier, Jean-Louis; George, Philippe (Eds.) Regards sur le XVIIe siècle. Feuillets de la Cathédrale de Liège (2003)

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See detailDecidability of invariant validation for paramaterized systems
Fontaine, Pascal; Gribomont, Pascal ULg

in Lecture Notes in Computer Science (2003), 2619

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See detailHigh-Performance Liquid Chromatography Analyses Of Pyoverdin Siderophores Differentiate Among Phytopathogenic Fluorescent Pseudomonas Species
Bultreys, Alain; Gheysen, Isabelle; Wathelet, Bernard ULg et al

in Applied and Environmental Microbiology (2003), 69(2),

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See detailL'opération RESSAC : diagnostic métacognitif avant la période de 'bloque'
Leclercq, Dieudonné ULg; Detroz, Pascal ULg; Dupont, Chantal ULg et al

in Actes du 16ème colloque international de l'ADMEE-Europe, 4-6 septembre 2003 (2003)

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See detailA new method for reconstruction of the vertical electron density distribution in the upper ionosphere and plasmasphere
Stankov, Stanimir; Jakowski, Norbert; Muhtarov, Plamen et al

in Journal of Geophysical Research. Space Physics (2003), 108(A51164), 1164

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See detailMechanical behaviour of chalk reservoir: Numerical modelling of water sensitivity and time dependence effects
Collin, Frédéric ULg; Cui, Yu Jun; Schroeder, Christian ULg et al

Conference (2003)

The paper proposes two numerical models ot the mechanical behaviour of chalk. First, an elasto-plastic constitutive law reproduces the different plastic mechanisms of the chalk and the influence of pore ... [more ▼]

The paper proposes two numerical models ot the mechanical behaviour of chalk. First, an elasto-plastic constitutive law reproduces the different plastic mechanisms of the chalk and the influence of pore fluids by introducing the concept of suction. Secondly, a model able to reproduce time dependence behaviour. Eventually, the paper gives a simulation of an academic reservoir during depletion and waterflooding phase. [less ▲]

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See detailDiagnostic et suivi de la gravidité chez le zébu par échographie
Pitala, W.; Boly, H.; Zongo, M. et al

in Revue d'Elévage et de Médecine Vétérinaire des Pays Tropicaux (2003), 56(3-4), 171-176

Des diagnostics de gravidité ont été réalisés chez 64 femelles zébus de races Peuhl et Goudali (Bos indicus) aux 28è et 40è jours postinsémination à l'aide d'un échographe muni d'une sonde linéaire de 6 ... [more ▼]

Des diagnostics de gravidité ont été réalisés chez 64 femelles zébus de races Peuhl et Goudali (Bos indicus) aux 28è et 40è jours postinsémination à l'aide d'un échographe muni d'une sonde linéaire de 6 MHz. Au 28è jour, l'exactitude globale a été de 92,2 p. 100, avec une exactitude de 92,6 p. 100 et 91,9 p. 100 respectivement pour les diagnostics positif et négatif. Au 40è jour, l'exactitude globale a été de 98,4 p. 100, avec une exactitude de 100 p. 100 et 97,3 p. 100 respectivement pour les diagnostics positif et négatif. Les fiabilités ont varié de 89,2 p. 100 (fiabilité du diagnostic de gravidité positif au 28è jour) à 100 p. 100 (fiabilité du diagnostic de gravidité négatif au 40è jour). Par ailleurs, la croissance foetale a été suivie chez 16 femelles gravides du 45è au 120è jour postinsémination. Les principales mensurations foetales réalisées ont été les diamètres du crâne et du tronc. Au 45è jour de la gravidité, les diamètres du crâne et du tronc ont été respectivement de 1,8 ± 0,1 cm et 1,4 ± 0,3 cm. Au 120è jour, ces valeurs ont été de 6,5 ± 0,6 cm et 5,8 ± 0,5 cm. A partir du 120è jour, l'utérus a pris une position très profonde, ne permettant plus la visualisation du foetus en croissance. [less ▲]

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See detailPlace de la thérapie active de reconditionnement à l’effort aérobie chez le patient fibromyalgique
Maquet, Didier ULg; Croisier, Jean-Louis ULg; Crielaard, Jean-Michel ULg

in Actes du Symposium « Kinésithérapie passive ou active » de la Fédération Nationale des Docteurs et Licenciés en Kinésithérapie (2003)

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See detailLa mission pénale de l'auditorat du travail: un mouvement de balancier
Kefer, Fabienne ULg

in Espace judiciaire et social européen (2003)

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