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See detailDiagnosis of HIV-1 in African couples : comparison of serology and PCR
Vaira, Dolorès ULg; Sondag, Danièle ULg; François-Gérard, C. et al

in Cinquième conférence internationale sur le SIDA : le défi scientifique et social (1989)

OBJECTIVE: Search for the rate of HIV-1 contamination among seronegative sexual partners of seropositive individuals. METHODS: Classical serological methods (EIA, WB) and PCR. SERIES: 36 heterosexual ... [more ▼]

OBJECTIVE: Search for the rate of HIV-1 contamination among seronegative sexual partners of seropositive individuals. METHODS: Classical serological methods (EIA, WB) and PCR. SERIES: 36 heterosexual couples from central Africa, accounting for a total of 73 persons: 13/37 seropositive women, 23/36 seropositive men. All couples were serologically discordant, i.e. one partner was seropositive. CONCLUSIONS: In such a population, particularly at risk of HIV contamination, the rate of false negative serological diagnosis reached 70%. [less ▲]

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See detailDiagnosis of lower airways dysfunction
Art, Tatiana ULg; Lekeux, Pierre ULg; Amory, Hélène ULg

in Proceedings of the 6th Annual Scientific Meeting of the European College of Veterinary Surgeons (1997)

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See detailDiagnosis of myxomatosis by an indirect immunoperoxidase test
Marlier, Didier ULg; Boucraut-baralon, Corine; Vindevogel, Henri ULg

in Vlaams Diergeneeskundig Tijdschrift (1999), 68

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See detailDiagnosis of obstructive sleep apnoea and hypopnoea syndrome based on automatic analysis of mandibular movements
Senny, Frédéric ULg; Destiné, Jacques ULg; Ansay, Pierre et al

in Proceedings of the 1st WASM Congress (2005, October)

Our study showed the potential of a surrogate of the oesophageal pressure, the jaw motion, and a dedicated automatic analysis to diagnose the obstructive sleep apnoea and hypopnoea syndrome (OSAHS ... [more ▼]

Our study showed the potential of a surrogate of the oesophageal pressure, the jaw motion, and a dedicated automatic analysis to diagnose the obstructive sleep apnoea and hypopnoea syndrome (OSAHS). Twentyfour patients were recorded in hospital settings and the jaw motion of fifteen of them was also recorded at home with an ambulatory device. The apnoea and hypopnoea index (AHI) of the gold standard, AHI_PSG, and the two AHI from the automatic analysis of the jaw motion, AHI_H (hospital) and AHI_A (ambulatory), were compared : AHI_PSG Vs AHI_H showed good correlation (r = 0.97) and under-estimation (slope p = 0.76). AHI_A Vs AHI_H revealed good reliability with r = 0.98 and slope p = 0.99. Finally, AHI_PSG Vs AHI_A showed very good accuracy of the diagnosis with sensitivity of 90% and specificity of 100%. [less ▲]

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See detailDiagnosis of osteoporosis without prevalent fractures: are we missing our main target?
Richy, F.; Reginster, Jean-Yves ULg

in Osteoporosis Action (2006), 1

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See detailDiagnosis of parathyroid carcinoma: potential role of PTH laboratory assays
CAVALIER, Etienne ULg

Conference (2012, September 08)

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See detailDiagnosis of pharyngeal disorders in dogs: a retrospective study of 67 cases
Billen, Frédéric ULg; Day, M. J.; Clercx, Cécile ULg

in Journal of Small Animal Practice (2006), 47(3), 122-129

OBJECTIVES: To assess the frequency distribution of pharyngeal disorders and to compare clinical signs in diseases of the different pharyngeal areas. To review the investigation methods. METHODS: Medical ... [more ▼]

OBJECTIVES: To assess the frequency distribution of pharyngeal disorders and to compare clinical signs in diseases of the different pharyngeal areas. To review the investigation methods. METHODS: Medical records of 67 dogs presenting with abnormalities of the pharyngeal area were retrospectively reviewed and classified according to the anatomic area involved, i.e. the nasopharyngeal, oropharyngeal and laryngopharyngeal areas. Clinical signs, endoscopic findings and results of additional sampling were reviewed. RESULTS: Nasopharyngeal disorders were most frequently encountered (49 per cent), with choanal masses being the most frequent diagnosis (24 of 33), followed by laryngopharyngeal disorders (37.5 per cent) and oropharyngeal disorders (10.5 per cent). A rare condition, stenosis of the intrapharyngeal opening, was classified separately (3 per cent). An overall good correlation between matched cytology and histopathology samples was found. In all categories of diseases, clinical signs related to both the upper respiratory and digestive tracts were reported. CLINICAL SIGNIFICANCE: Pharyngeal disorders are more frequently localised in the nasopharyngeal area and include essentially choanal masses. The use of a flexible endoscope for retrograde rhinoscopy is essential for adequate investigation of the proximal nasopharyngeal area. Clinical signs do not allow differentiation of the pharyngeal disorder within the different pharyngeal areas. [less ▲]

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See detailDiagnosis of primary thyrotrophin-secreting microadenoma by 1.5 T MR.
Stadnik, T.; Stevenaert, Achille ULg; Beckers, Albert ULg et al

in European Journal of Radiology (1992), 14(1), 18-21

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See detailDiagnosis of Process Faults in Chemical Systems Using a Local Partial Least Squares Approach
Kruger, Uwe; Dimitriadis, Grigorios ULg

in AIChE Journal (2008), 54(10), 2581-2596

This article discusses the application of partial least squares (PLS) for monitoring complex chemical systems. In relation to existing work, this article proposes the integration of the statistical local ... [more ▼]

This article discusses the application of partial least squares (PLS) for monitoring complex chemical systems. In relation to existing work, this article proposes the integration of the statistical local approach into the PLS framework to monitor changes in the underlying model rather than analyzing the recorded input/output data directly. As discussed in the literature, monitoring changes in model parameters addresses the problems of nonstationary behavior and presents an analogy to model-based approaches. The benefits of the proposed technique are that (i) a detailed mechanistic plant model is not required, (ii) nonstationary process behavior does not produce false alarms, (iii) parameter changes can be non-Gaussian, (iv) Gaussian monitoring statistics can be established to simplify the monitoring task, and (v) fault magnitude and signatures can be estimated. This is demonstrated by a simulation example and the analysis of recorded data from two chemical processes. [less ▲]

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See detailDiagnosis of psoroptic sheep scab with an improved enzyme-linked immunosorbent assay.
Ochs, H.; Lonneux, J.; Losson, Bertrand ULg et al

in Veterinary Parasitology (2001), 96(3), 233-42

An enzyme-linked immunosorbent assay (ELISA) was developed for the detection of specific antibodies against crude Psoroptes antigen. The diagnostic sensitivity was 93.7% in 191 sheep with clinical signs ... [more ▼]

An enzyme-linked immunosorbent assay (ELISA) was developed for the detection of specific antibodies against crude Psoroptes antigen. The diagnostic sensitivity was 93.7% in 191 sheep with clinical signs associated with mange. These animals originated from 29 flocks in which psoroptic mites were detected. All of 59 sheep infested with Psoroptes ovis were seropositive. Additionally, in 49% of 70 clinically unaffected sheep originating from P. ovis-infested flocks, specific antibodies could be detected, suggesting that asymptomatic infestations can be diagnosed by serology. The specificity of the ELISA was 96.5% as determined with 254 sheep originating from 44 flocks without clinical mange. Cross-reactivity in a low range was detected with selected sera of sheep with clinical chorioptic or forage mite infestations. Four sheep seroconverted 2 weeks after experimental P. ovis infestation, i.e. 2 weeks before clinical signs became obvious. After successful doramectin treatment of 14 sheep with naturally acquired P. ovis infestation, the ELISA values declined slowly but remained positive in seven cases beyond 17 weeks. [less ▲]

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See detailDiagnosis of sickle cell disease by innovative PCR without DNA extraction
DETEMMERMAN, Liselot; BOEMER, François ULg; OLIVIER, Sabine

Poster (2016, February)

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See detailDiagnosis of small bowel malabsorption syndromes in adults
Belaiche, Jacques ULg; Louis, Edouard ULg

in Acta Gastro-Enterologica Belgica (2006), 69(1, Jan-Mar), 31-37

Patients with malabsorption represent a small proportion of presentations with chronic diarrhea. In spite of some progress, the last twenty years were not very innovating in malabsorption investigations ... [more ▼]

Patients with malabsorption represent a small proportion of presentations with chronic diarrhea. In spite of some progress, the last twenty years were not very innovating in malabsorption investigations. Supporting history may direct investigations toward either the small bowel or pancreas. Serological testing for celiac disease will determine most cases without invasive investigation, but individuals suspected to have small bowel malabsorption, despite negative celiac serology, should have endoscopic distal duodenal biopsies taken to exclude other rare forms of small bowel enteropathy. This strategy has largely supplanted many older tests of small bowel function. [less ▲]

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See detailDiagnosis of the sediment transport in the Belgian Coastal Zone
Mercier, Christophe ULg; Delhez, Eric ULg

in Estuarine Coastal & Shelf Science (2007), 74(4), 670-683

Estimating the age of particles in marine environment constitutes an invaluable tool to understand the interactions between complex flows and sediment dynamics, particularly in highly energetic coastal ... [more ▼]

Estimating the age of particles in marine environment constitutes an invaluable tool to understand the interactions between complex flows and sediment dynamics, particularly in highly energetic coastal areas such as the Belgian Coastal Zone (Southern Bight in the North Sea). To this end, the Constituent Age and Residence time Theory-CART-introduced by Delhez, E.J.M., Campin, J.-M., Hirst, A.C., Deleersnijder, E. [1999a. Toward a general theory of the age in ocean modelling. Ocean Modelling 1, 17-27] for passive water constituents is extended to describe the sediment dynamics. It is then used in combination with a three-dimensional coupled hydrodynamic-sediment transport model to investigate sediment processes in the Belgian Coastal Zone focusing on two complementary aspects of the sediment dynamics: the internal sediment motion and redistribution within the Belgian coast; and the horizontal transport. (C) 2007 Elsevier Ltd. All rights reserved. [less ▲]

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See detailDiagnosis of the transport of adsorbed material in the Scheldt estuary: A proof of concept
Delhez, Eric ULg; Wolk, Frank ULg

in Journal of Marine Systems (2013), 128

Many contaminants can attach to suspended particles. Their transport differs therefore from the transport of dissolved substances, especially in highly turbid environment like estuaries. In this paper, we ... [more ▼]

Many contaminants can attach to suspended particles. Their transport differs therefore from the transport of dissolved substances, especially in highly turbid environment like estuaries. In this paper, we show how the Constituent Age and Residence time Theory (CART — www.climate.be/CART) can be adapted to quantify in a rigorous manner the transport rate of contaminants that are present in both the dissolved and adsorbed phases. On the basis of numerical experiment using a 1D model of the Scheldt estuary, it is shown that the interaction with suspended particles significantly affects the transport of contaminants with partition coefficients larger than 1000 ml/g. The mean transit time from Ghent to Vlissingen of such contaminants can reach 160 days while it is only 60 days for water and dissolved constituents. This increase of the transit time is mainly due to the fact that adsorbed constituents spend long periods of time on the bottom. Surprisingly, the downstream transport of adsorbed constituents in the water column appears more effective than that of dissolved constituents. This transport affects however a small fraction of the adsorbed constituent and is therefore not sufficient to compensate for the long resting phase on the bottom of the bulk of the constituent. The concept and methodology introduced in this paper are easily applicable to most model studies and provide powerful and flexible tools for the detailed understanding of the transport of contaminants in estuaries. In particular, the concept of age and modified ages taking into account specifically the time spent in the water column or in the bottom provide new diagnostic tools to understand and quantify the dynamics of contaminants. [less ▲]

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See detailDiagnosis of TSH secreting pituitary adenomas : A changing scene
Beckers, Albert ULg

in The 85th Annual Meeting of the Endocrine Society - Abstract book (2003)

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See detailDiagnosis of vertical velocities with the QG Omega equation: a relocation method to obtain pseudo-synoptic data sets
Rixen, Michel; Beckers, Jean-Marie ULg; Allen, J. T.

in Deep-Sea Research Part I, Oceanographic Research Papers (2001), 48(6), 1347-1373

The quantification of vertical motion and vertical fluxes is essential in our ability to predict and tolerate climate change. However, diagnostic estimations might be affected by the errors arising from ... [more ▼]

The quantification of vertical motion and vertical fluxes is essential in our ability to predict and tolerate climate change. However, diagnostic estimations might be affected by the errors arising from the necessary compromise between spatio-temporal resolution and cost of hydrographic surveys. Observations of a numerical ocean model have been made in order to test the accuracy of different sampling strategies and their possible a-posteriori corrections. A simple first-order correction method, computing a pseudo-synoptic data set from a non-synoptic data set and involving a geostrophic relocation of the stations is shown to correct significantly the synopticity error in hydrographic data, derived QG vertical motion and vertical temperature fluxes. Sensitivity analyses also show that the lack of synopticity is more critical than other factors, including the sampling resolution, the level of no-motion and the analysis. (C) 2001 Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailDiagnosis primary aldosteronism is it neccesary?
Krzesinski, Jean-Marie ULg

Learning material (2007)

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See detailDiagnosis, pathophysiology and management of chronic migraine: a proposal of the Belgian Headache Society.
Paemeleire, K; Louis, P; MAGIS, Delphine ULg et al

in Acta Neurologica Belgica (2015), 35(5), 437-442

This is a review of the pathophysiology of chronic migraine and of available therapies with a proposal for an algorithm of management.

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See detailDiagnosis, pathophysiology and management of chronic migraine: a proposal of the Belgian Headache Society.
Paemeleire, Koen; Louis, Paul; MAGIS, Delphine ULg et al

in Acta neurologica Belgica (2014)

Chronic migraine (CM) is a disabling neurological condition affecting 0.5-2 % of the population. In the current third edition of the International Classification of Headache Disorders, medication overuse ... [more ▼]

Chronic migraine (CM) is a disabling neurological condition affecting 0.5-2 % of the population. In the current third edition of the International Classification of Headache Disorders, medication overuse is no longer an exclusion criterion and CM is diagnosed in patients suffering from at least 15 headache days per month of which at least eight are related to migraine. CM is difficult to treat, and preventive treatment options are limited. We provide a pathogenetic model for CM, integrating the latest findings from neurophysiological and neuroimaging studies. On behalf of the Belgian Headache Society, we present a management algorithm for CM based on the international literature and adapted to the Belgian situation. Pharmacological treatment options are discussed, and recent data on transcranial and invasive neuromodulation studies in CM are reviewed. An integrated multimodal treatment programme may be beneficial to refractory patients, but at present, this approach is only supported by a limited number of observational studies and quite variable between centres. [less ▲]

Detailed reference viewed: 32 (1 ULg)