Echo du 9e colloque de l'AiRDF, Québec 26-28 aout 2004 : "Le français, discipline singulière, plurielle ou transversale ?"
in Enjeux : Revue de Formation Continuée et de Didactique du Français (2004), 60Detailed reference viewed: 6 (2 ULg)
L'ÉCHO-DOPPLER TRANSCRÂNIEN DANS LA PRISE EN CHARE DES STÉNOSES ARTÉRIELLES CERVICALES ET INTRACRÂNIENNES
SCHOYSMAN, Laurent ; TSHIBANDA, Luaba ; OTTO, Bernard et al
in Revue Médicale de Liège (2014), 69
Le progrès technique en imagerie a permis le développement de l’écho-Doppler transcrânien en mode duplex ou triplex. A côté des autres techniques de neuro-imagerie, son intérêt dans la pathologie ... [more ▼]
Le progrès technique en imagerie a permis le développement de l’écho-Doppler transcrânien en mode duplex ou triplex. A côté des autres techniques de neuro-imagerie, son intérêt dans la pathologie vasculaire cérébrale va grandissant. Le présent article a pour but de présenter cette technique en détaillant ses indications actuelles chez les patients présentant des sténoses artérielles cervicales et intra-crâniennes. [less ▲]Detailed reference viewed: 17 (2 ULg)
Echocardiographic aspects of cardiac amyloidosis.
Pierard, Luc ; ; et al
in Acta cardiologica (1981), 36(6), 455-61
We report the M-mode and two-dimensional echocardiographic findings in a patient with familial amyloidosis. The diagnosis was made by the clinical picture and histologic evidence of amyloid in peripheral ... [more ▼]
We report the M-mode and two-dimensional echocardiographic findings in a patient with familial amyloidosis. The diagnosis was made by the clinical picture and histologic evidence of amyloid in peripheral nerve biopsy. Though the patient had no clinical sign of heart failure, extensive involvement of the heart was demonstrated by echocardiography. M-mode echocardiography revealed increased right ventricular wall thickness in conjunction with symmetric increase in left ventricular wall thickness. On two-dimensional echocardiography, the entire interventricular septum and the papillary muscles were more dense than normal. These high density echoes had a "granular and sparkling" pattern. This case shows that cardiac amyloidosis can be diagnosed in the pre-clinical, asymptomatic state by M-mode and two-dimensional echocardiography. When symptomatic, confusion with constrictive pericarditis may be avoided non-invasively. [less ▲]Detailed reference viewed: 5 (0 ULg)
Echocardiographic assessment of left ventricular systolic function in colic horses
Borde, Laura ; Amory, Hélène ; Leroux, Aurélia et al
in Journal of Equine Veterinary Science (2011), 31(8), 481-487
Background: Echocardiography has not been reported to study hemodynamic disturbances in colic horses. Objectives: To non invasively assess the impact of colic-related endotoxin shock on equine cardiac ... [more ▼]
Background: Echocardiography has not been reported to study hemodynamic disturbances in colic horses. Objectives: To non invasively assess the impact of colic-related endotoxin shock on equine cardiac function. Animals: Fifty horses admitted in clinic on emergency for colic. Methods: A shock score from 1 to 4 was established for each horse based on clinical evaluation, non invasive systolic blood pressure and blood tests measurements. Left ventricular echocardiographic and Doppler parameters were compared between the 4 groups according to the shock score (1 = no or discrete signs of shock, n=11; 2 = mild shock, n=17; 3 = moderate shock, n=12; 4 = severe shock, n=10) using a multivariable analysis. Horses with a score shock of 1 were considered as control. Significance was set at P < 0.05. Results: The stroke volume, stroke index, ejection time, ejection time index corrected for heart rate, aortic velocity time integral, aortic flow acceleration time and aortic flow deceleration time were significantly lower whereas acceleration rate of aortic flow ejection and heart rate were significantly higher in shocked horses than in controls. Cardiac output was not significantly different between groups. Conclusions and Clinical importance: Even if those results are difficult to interpret because of the shock-induced changes in loading conditions of the heart, they suggest that alterations in some indicators of systolic function can be quantified by Doppler echocardiography in horses with colic-induced endotoxemic shock. Ultrasonographic monitoring of cardiovascular function could thus be of interest in equine intensive care. [less ▲]Detailed reference viewed: 96 (19 ULg)
Echocardiographic assessment of patients with heart failure: a practical checklist.
; ; LANCELLOTTI, Patrizio
in Acta Cardiologica (2008), 63(6), 783-9Detailed reference viewed: 3 (0 ULg)
Echocardiographic determinants of abnormal response to exercise in asymptomatic aortic valve stenosis
LANCELLOTTI, Patrizio ; Lebois, Florence ; Tombeux, Christophe et al
in European Heart Journal (2004), 25(Suppl. S), 590Detailed reference viewed: 7 (0 ULg)
Echocardiographic Determinants of Maximal Exercise Capacity in Asymptomatic Patients with Primary Mitral Regurgitation.
Magne, Julien ; ; et al
Conference (2012)Detailed reference viewed: 3 (1 ULg)
Echocardiographic Evaluation of Cardiac Morphologic and Functional Variables in Double-Muscled Calves
Amory, Hélène ; Kafidi, Nacereddine ; Lekeux, Pierre
in American Journal of Veterinary Research (1992), 53(9), 1540-1547
We studied, by means of echocardiography in vivo, the cardiac consequences of the double-muscled character selection in beef cattle. Morphologic and functional echocardiographic variables were regularly ... [more ▼]
We studied, by means of echocardiography in vivo, the cardiac consequences of the double-muscled character selection in beef cattle. Morphologic and functional echocardiographic variables were regularly estimated in 17 Friesian and 8 Belgian White and Blue calves during their growth. A total of 50 and 44 sets of data were collected in each group, respectively. Recordings were obtained, using 2-dimensional and M-mode echocardiography, and included measurements in long- and short-axis views of the heart. Most of the diastolic measurements of the left ventricle were not significantly different between breeds when normalized for body weight. To the contrary, systolic measurements of left ventricular wall thickness and dimensions were significantly (P less than or equal to 0.001) lower and greater, respectively, in Belgian White and Blue calves than in Friesian calves. This was interpreted as a result of significantly (P less than or equal to 0.001) lower left ventricular systolic functional indices in Belgian White and Blue than in Friesian calves. Echocardiographic evidence that the double-muscled selection in cattle induces alteration in morphologic variables of left ventricle was not found. However, results indicate that indices of left ventricular systolic function are lower in double-muscled calves than in calves with standard conformation. [less ▲]Detailed reference viewed: 23 (5 ULg)
Echocardiographic evaluation of cardiac performance during stimulation with dobutamine in conscious horses: a preliminary study
Sandersen, Charlotte ; Delguste, Catherine ; et al
in Proceedings of the 41st Annual Congress of the British Equine Veterinairy Association (2002, September)Detailed reference viewed: 12 (4 ULg)
Echocardiographic evaluation of cardiac performance during stimulation with dobutamine in conscious horses: a preliminary study.
Sandersen, Charlotte ; Delguste, Catherine ; et al
in Pflügers Archiv : European Journal of Physiology (2002), 444(1-2), 4Detailed reference viewed: 6 (2 ULg)
Echocardiographic integrated backscatter for detecting progression and regression of aortic valve calcifications in rats.
; ; et al
in Cardiovascular Ultrasound (2013), 11(1), 4
ABSTRACT: BACKGROUND: Calcification is an independent predictor of mortality in calcific aortic valve disease (CAVD). The aim of this study was to evaluate the use of non-invasive, non-ionizing ... [more ▼]
ABSTRACT: BACKGROUND: Calcification is an independent predictor of mortality in calcific aortic valve disease (CAVD). The aim of this study was to evaluate the use of non-invasive, non-ionizing echocardiographic calibrated integrated backscatter (cIB) for monitoring progression and subsequent regression of aortic valvular calcifications in a rat model of reversible renal failure with CAVD, compared to histology. METHODS: 28 male Wistar rats were prospectively followed during 21 weeks. Group 1 (N=14) was fed with a 0.5% adenine diet for 9 weeks to induce renal failure and CAVD. Group 2 (N=14) received a standard diet. At week 9, six animals of each group were killed. The remaining animals of group 1 (N=8) and group 2 (N=8) were kept on a standard diet for an additional 12 weeks. cIB of the aortic valve was calculated at baseline, 9 and 21 weeks, followed by measurement of the calcified area (Ca Area) on histology. RESULTS: At week 9, cIB values and Ca Area of the aortic valve were significantly increased in the adenine-fed rats compared to baseline and controls. After 12 weeks of adenine diet cessation, cIB values and Ca Area of group 1 decreased compared to week 9, while there was no longer a significant difference compared to age-matched controls of group 2. CONCLUSIONS: cIB is a non-invasive tool allowing quantitative monitoring of CAVD progression and regression in a rat model of reversible renal failure, as validated by comparison with histology. This technique might become useful for assessing CAVD during targeted therapy. [less ▲]Detailed reference viewed: 20 (6 ULg)
Echocardiographic prediction of the site of coronary artery obstruction in acute myocardial infarction.
Pierard, Luc ; SPRYNGER, Muriel ; Carlier, Jean-Yves
in European heart journal (1987), 8(2), 116-23
In 49 patients with acute myocardial infarction (AMI), the infarction topography was assessed by cross-sectional echocardiography and the location of coronary artery obstruction were correlated. A ... [more ▼]
In 49 patients with acute myocardial infarction (AMI), the infarction topography was assessed by cross-sectional echocardiography and the location of coronary artery obstruction were correlated. A ventricular segmentation of 5 right and 16 left ventricular segments was used. The site of coronary obstruction was determined in 45 patients by coronary angiography and by necropsy in 4 patients. The exact location of the obstruction could not be found in 4 patients. The infarct related vessel was the left main artery in 1 patient, the left anterior descending artery (LAD) in 19, the left circumflex in 6 and the right coronary artery in 24. Specific segments were identified for each of the 3 coronary arteries: anteroseptal and anterior segments for LAD, right ventricular segments for the right coronary artery and basal anterolateral segment for the left circumflex. Specific segments (specificity 100%) were also identified for the principal coronary branches: basal anterior for the first anterior descending diagonal (sensitivity 71%), basal anteroseptal for the first septal perforator (83%), middle anterior for the second diagonal (100%), middle anteroseptal for the second septal (89%), basal posteroseptal for a dominant right coronary artery (89%), right ventricular anterolateral segment for the right ventricular marginal branch (83%). Echocardiographic identification of the topography of AMI can be useful in recognizing the infarct-related vessel and identifying the site of coronary artery obstruction. [less ▲]Detailed reference viewed: 8 (0 ULg)
Echocardiographic reference ranges for normal cardiac chamber size: results from the NORRE study.
; ; et al
in European heart journal cardiovascular Imaging (2014), 15(6), 680-690
AIMS: Availability of normative reference values for cardiac chamber quantitation is a prerequisite for accurate clinical application of echocardiography. In this study, we report normal reference ranges ... [more ▼]
AIMS: Availability of normative reference values for cardiac chamber quantitation is a prerequisite for accurate clinical application of echocardiography. In this study, we report normal reference ranges for cardiac chambers size obtained in a large group of healthy volunteers accounting for gender and age. Echocardiographic data were acquired using state-of-the-art cardiac ultrasound equipment following chamber quantitation protocols approved by the European Association of Cardiovascular Imaging. METHODS: A total of 734 (mean age: 45.8 +/- 13.3 years) healthy volunteers (320 men and 414 women) were enrolled at 22 collaborating institutions of the Normal Reference Ranges for Echocardiography (NORRE) study. A comprehensive echocardiographic examination was performed on all subjects following pre-defined protocols. There were no gender differences in age or cholesterol levels. Compared with men, women had significantly smaller body surface areas, and lower blood pressure. Quality of echocardiographic data sets was good to excellent in the majority of patients. Upper and lower reference limits were higher in men than in women. The reference values varied with age. These age-related changes persisted for most parameters after normalization for the body surface area. CONCLUSION: The NORRE study provides useful two-dimensional echocardiographic reference ranges for cardiac chamber quantification. These data highlight the need for body size normalization that should be performed together with age-and gender-specific assessment for the most echocardiographic parameters. [less ▲]Detailed reference viewed: 8 (1 ULg)
Echocardiographic reference values of cardiac dimensions and function in the healthy growing Friesian calf
Amory, Hélène ; ; Linden, Annick et al
in Archives Internationales de Physiologie et de Biochimie (1991)Detailed reference viewed: 4 (0 ULg)
L'échocardiographie Doppler: un progrès révolutionnaire en cardiologie équine
in Proceedings of the Annual meeting of the French Equine Veterinary Association (AVEF), Toulouse, France (1998)Detailed reference viewed: 14 (0 ULg)
Echocardiographie dynamique dans l'insuffisance mitrale
Lancellotti, Patrizio ;
in Archives des Maladies du Coeur et des Vaisseaux (2002), 95(9), 793-8
Mitral insufficiency can have a dynamic character, correlating to an intermittent increase in the area of the regurgitant orifice and the regurgitant volume. Among the various stress methods ... [more ▼]
Mitral insufficiency can have a dynamic character, correlating to an intermittent increase in the area of the regurgitant orifice and the regurgitant volume. Among the various stress methods, echocardiography during effort on a bicycle in the semisitting position appears to be the technique of choice for evaluating this dynamic character. Thanks to the improvement of the Doppler signal quality, quantification of the regurgitant volume variations can be obtained in a reproducible manner at rest and during effort by applying the "PISA" method. [less ▲]Detailed reference viewed: 8 (0 ULg)