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See detailLa Bildwissenschaft dans le sillage de l’iconologie
Hagelstein, Maud ULg

Conference (2015)

Il est tout à fait commun aujourd’hui de constater l’omniprésence et la prolifération des images dans nos sociétés. Depuis quelques années (voire quelques décennies), la théorie contemporaine s’est ... [more ▼]

Il est tout à fait commun aujourd’hui de constater l’omniprésence et la prolifération des images dans nos sociétés. Depuis quelques années (voire quelques décennies), la théorie contemporaine s’est redéployée sur de nouveaux territoires disciplinaires en développant un outillage conceptuel inédit. Des débats assez vifs ont naturellement accompagné ce redéploiement (dont je vais très vite, vous allez le comprendre, relativiser la nouveauté). Or, le domaine (pseudo-)émergeant des études visuelles réclame une enquête épistémologique approfondie, vouée non pas à dessiner un programme théorique fédérateur/homogène, mais à cartographier au moins la variété des points de vue adoptés sur l’image et, peut-être, à dégager quelques axes problématiques communs. Le projet général de ces journées consiste notamment à montrer comment les recherches récentes entreprises par les principaux protagonistes de la théorie de l’image contemporaine (allemande) s’inscrivent dans le cadre d’une réflexion large sur l’héritage de l’iconologie. Ceci me semble le passage obligé d’une enquête sur les enjeux épistémologiques (méthodologiques) de la théorie de l’image actuelle. En effet, du point de vue de son ancrage philosophique, la théorie de l’image contemporaine puise ses principales ressources conceptuelles dans l’iconologie critique – discipline d’interprétation des images inaugurée en 1912 par le théoricien de l’art Aby Warburg (1866-1929), nourrie par la philosophie des formes symboliques de Ernst Cassirer (1874-1945), et systématisée par Erwin Panofsky (1892-1968) dans ses Essais d’iconologie (1939), notamment. Ce segment de l’historiographie (années 1920-1930), redécouvert à la fin des années 1980 (pour ce qui est de Warburg en tout cas), a fortement marqué toute une génération d’intellectuels. Il s’agira entre autres ici de faire apparaître l’impulsion qu’a donnée la critique (parfois sévère/injuste) des travaux de Panofsky (surtout) à la Bildwissenschaft. Visant l’interprétation du contenu symbolique des images, la méthode iconologique concevait l’art comme l’un des domaines essentiels de production de sens, c’est-à-dire un domaine d’expression dont la vocation principale serait de charger de sens des éléments sensibles/matériels, en s’inscrivant de surcroit dans un contexte socio-historique spécifique puisque l’œuvre reflète/révèle une vision du monde historiquement déterminée que l’iconologue met au jour. Partant de là, la critique la plus basique (et néanmoins commune) consiste à dire (et à redire inlassablement) que Panofksy semble avoir, au moment de l’institution de cette méthode, écarté la plupart du temps les préoccupations formelles (tout ce qui concerne les couleurs, par ex., les traits et toutes les qualités proprement plastiques/picturales) pour se concentrer avec plus d’insistance sur les éléments de contenu et analyser au mieux les liens de l’œuvre d’art aux significations, aux idées. [less ▲]

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See detailDynamiser la ville par l'art, une ambition raisonnable ? (discussion publique avec Sarah Jonet - projet Chic and Cheap)
Hagelstein, Maud ULg

Conference given outside the academic context (2015)

Comment, à la fois, valoriser le travail des artistes plasticiens, soutenir la construction d’une communauté urbaine et accompagner une dynamique de réhabilitation des commerces inoccupés ? Telle est ... [more ▼]

Comment, à la fois, valoriser le travail des artistes plasticiens, soutenir la construction d’une communauté urbaine et accompagner une dynamique de réhabilitation des commerces inoccupés ? Telle est l’ambition de Chic And Cheap, ce dispositif artistico-urbain qui propose depuis sept ans déjà des galeries intra et extra muros temporaires dans la ville de Liège. A partir d’une présentation de ce projet, de ses réalisations passées et actuelles, on se demandera si l’art peut dynamiser une ville, s’il peut être un facteur de cohésion sociale ou de sécurisation des territoires. La question des potentialités et limites d’installations d’art contemporain en ville sera ainsi éclairée. On se demandera aussi comment l’art public, qu’il soit dit de commande ou sauvage, tente d’apporter une réponse esthétique au vivre ensemble (texte de présentation : Rachel Brahy) [less ▲]

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See detailIsolated response curves in a base-excited, two-degree-of-freedom, nonlinear system
Noël, Jean-Philippe ULg; Detroux, Thibaut ULg; Masset, Luc ULg et al

in Proceedings of the ASME 2015 International Design Engineering Technical Conferences (2015)

In the present paper, isolated response curves in a nonlinear system consisting of two masses sliding on a horizontal guide are examined. Transverse springs are attached to one mass to provide the ... [more ▼]

In the present paper, isolated response curves in a nonlinear system consisting of two masses sliding on a horizontal guide are examined. Transverse springs are attached to one mass to provide the nonlinear restoring force, and a harmonic motion of the complete system is imposed by prescribing the displacement of their supports. Numerical simulations are carried out to study the conditions of existence of isolated solutions, their bifurcations, their merging with the main response branch and their basins of attraction. This is achieved using tools including nonlinear normal modes, energy balance, harmonic balance-based continuation and bifurcation tracking, and global analysis. [less ▲]

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See detailPERFORMANCE ET INVENTION. LE LABORATOIRE DE L’EXPERIENCE ESTHETIQUE
Hagelstein, Maud ULg

E-print/Working paper (2015)

Lorsqu’il cherche à qualifier l’époque de l’art dans laquelle nous baignons actuellement, le philosophe Jacques Rancière parle d’un régime pour lequel l’expérience esthétique serait déterminante ... [more ▼]

Lorsqu’il cherche à qualifier l’époque de l’art dans laquelle nous baignons actuellement, le philosophe Jacques Rancière parle d’un régime pour lequel l’expérience esthétique serait déterminante : sensible (par définition) et prise dans un rapport paradoxal de continuité et d’exception avec l’expérience commune. Le régime esthétique de l’art – celui qui affecte les productions artistiques contemporaines – signerait notamment l’effacement des spécificités des arts (et l’abandon du régime très hiérarchisé des Beaux-Arts) au profit d’une expérience sensible commune à toutes les formes d’expression artistiques . Le propre de l’art serait donc de faire vivre à son spectateur une telle expérience, qui toucherait directement ses sens et son imagination. Une expérience dont la tonalité particulière serait directement reconnaissable. Une expérience en excès par rapport à ses habitudes et qui le ferait basculer progressivement dans le domaine si singulier de l’art. On voudrait ici défendre l’idée suivante : la performance artistique semble l’une des animatrices principales de ce régime contemporain en tant qu’elle vise à dégager – au-delà des particularismes des médias d’expression – un territoire très large (un laboratoire) d’expérimentation pour l’art. À travers leurs propositions, les artistes performeurs ne produisent pas des œuvres d’art (c’est-à-dire des produits finis), ils montrent le travail de la créativité à l’œuvre. [less ▲]

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See detailThe Brussels Court judgement in Commission v Elevators manufacturers, or the story of how the Commission lost an action for damages based on its own infringement decision.
Marcos Ramos, Jorge ULg; Muheme, Daniel ULg

Diverse speeche and writing (2015)

With the proceedings before the Brussels Court, the Commission emphasized its growing need to promote claims for damages for infringements of EU Competition law. Ahead of the implementation of the Damages ... [more ▼]

With the proceedings before the Brussels Court, the Commission emphasized its growing need to promote claims for damages for infringements of EU Competition law. Ahead of the implementation of the Damages Directive, and with its own infringement decision in hand, this claim seemed to be an easy exercise for the Commission to recoup the allegedly surplus paid for the maintenance contracts. [less ▲]

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See detailAn automated statistical shape model developmental pipeline: application to the human scapula and humerus
Mutsvangwa, Tinashe; Burdin, Valérie; Schwartz, Cédric ULg et al

in IEEE Transactions on Biomedical Engineering (2015), 62(4), 1098-1107

This work presents development of statistical shape models based on robust and rigid-groupwise registration followed by pointset non-rigid registration. The main advantages of the pipeline include ... [more ▼]

This work presents development of statistical shape models based on robust and rigid-groupwise registration followed by pointset non-rigid registration. The main advantages of the pipeline include automation in that the method does not rely on manual landmarks or a regionalization step; there is no bias in the choice of reference during the correspondence steps and the use of the Probabilistic Principal Component Analysis framework increases the domain of the shape variability. A comparison between the widely used Expectation Maximization- Iterative Closest Point algorithm and a recently reported groupwise method on publicly available data (hippocampus) using the well-known criteria of generality, specificity and compactness is also presented. The proposed method gives similar values but the curves of generality and specificity are superior to those of the other two methods. Finally the method is applied to the human scapula, which is a known difficult structure, and the human humerus. [less ▲]

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See detailCoopératives et démocratie : un état des lieux de la question pour encourager la vitalité démocratique des coopératives
Rijpens, Julie ULg; Jonet, Christian; Mertens de Wilmars, Sybille ULg

in Van Gyes, Guy; De Spiegelaere, Stan (Eds.) L'entreprise de nous tous. Innover la participation des travailleurs en Belgique (2015)

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See detailImportance of wavenumber dependence of Biot numbers in one-sided models of evaporative Marangoni instability: horizontal layer and spherical droplet
Machrafi, Hatim ULg; Rednikov, Alexey; Colinet, Pierre et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2015)

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See detailReversing song behavior phenotype: Testosterone driven induction of singing and measures of song quality in adult male and female canaries (Serinus canaria)
Madison, Farrah N.; Rouse, Melvin L. Jr; Balthazart, Jacques ULg et al

in General and comparative endocrinology (2015), 215

In songbirds, such as canaries (Serinus canaria), the song control circuit has been shown to undergo a remarkable change in morphology in response to exogenous testosterone (T). It is also well ... [more ▼]

In songbirds, such as canaries (Serinus canaria), the song control circuit has been shown to undergo a remarkable change in morphology in response to exogenous testosterone (T). It is also well established that HVC, a telencephalic nucleus involved in song production, is significantly larger in males than in females. T regulates seasonal changes in HVC volume in males, and exposure to exogenous T in adult females increases HVC volume and singing activity such that their song becomes more male-like in frequency and structure. However, whether there are sex differences in the ability of T to modulate changes in the song system and song behavior has not been investigated in canaries. In this study, we compared the effects of increasing doses of T on singing and song control nuclei volumes in adult male and female American Singer canaries exposed to identical environmental conditions. Males were castrated and all birds were placed on short days (8L:16D) for 8weeks. Males and females were implanted either with a 2, 6 or 12mm long Silastic implant filled with crystalline T or an empty 12mm implant as control. Birds were then housed individually in sound-attenuated chambers. Brains were collected from six birds from each group after 1week or 3weeks of treatment. Testosterone was not equally effective in increasing singing activity in both males and females. Changes in song quality and occurrence rate took place after a shorter latency in males than in females; however, females did undergo marked changes in a number of measures of song behavior if given sufficient time. Males responded with an increase in HVC volume at all three doses. In females, T-induced changes in HVC volume only had limited amplitude and these volumes never reached male-typical levels, suggesting that there are sex differences in the neural substrate that responds to T. [less ▲]

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See detailEU and Brazil in Africa: a Solidarity Triangular Cooperation? The case of biofuel production in Mozambique
Cusson, Gabrielle ULg

Conference (2015)

Although triangular cooperation (TrC) between the European Union (EU) and Brazil in Africa is still in its early stages, recent joint action plans (2008; 2011) establish certain principles such as ... [more ▼]

Although triangular cooperation (TrC) between the European Union (EU) and Brazil in Africa is still in its early stages, recent joint action plans (2008; 2011) establish certain principles such as solidarity and local empowerment. In addition, they identify climate change, sustainable development and renewable energy as one of TrC priority areas. The recent strategic partnership between EU and Brazil for the biofuel production in Mozambique already raises many questions. The project aims to increase efficiency of bioethanol, biodiesel and bioelectricity production by intensifying agricultural production in lands of Mozambique. Currently, a feasibility study for project implementation is underway. However, many critics have been raised regarding the lack of transparency and the top down process of the project. The critics also raise awareness for the issues of environmental land degradation, food insecurity and land grabbing. Thus, there seems to be a gap between the rhetoric of the EU and Brazil about TrC principles and the reality that is emerging in Africa. Therefore, it is relevant to ask ourselves whether the TrC reflects principles of solidarity and development or respond to the interests of the « donnors »? This article will attempt to analyze the strategic and commercial interests behind this partnership. As part of the energy policy of the EU that aims to use 20% of renewable energy by 2020, its need for biofuel is undeniable. The creation of new biofuel supply platforms in Africa, which could be acquired to minimum taxe level, is definitively in its best interests. For Brazil, the acquisition of land in Africa for biofuel production could beneficiate its national companies such as Cosan or Copersucar [less ▲]

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See detailACE inhibitors in aortic stenosis: no fear just hope.
DAVIN, Laurent ULg; DULGHERU, Raluca Elena ULg; Lancellotti, Patrizio ULg

in European heart journal cardiovascular Imaging (2015)

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See detailEchocardiographic reference ranges for normal cardiac Doppler data: results from the NORRE Study.
Caballero, Luis; Kou, Seisyou; DULGHERu et al

in European heart journal cardiovascular Imaging (2015)

AIMS: Reference values for Doppler parameters according to age and gender are recommended for the assessment of heart physiology, specifically for left ventricular (LV) diastolic function. In this study ... [more ▼]

AIMS: Reference values for Doppler parameters according to age and gender are recommended for the assessment of heart physiology, specifically for left ventricular (LV) diastolic function. In this study, we report normal reference ranges for Doppler parameters obtained in a large group of healthy volunteers. Echocardiographic data were acquired using state-of-the-art cardiac ultrasound equipment following Doppler acquisition and measurement protocols approved by the European Association of Cardiovascular Imaging. METHODS AND RESULTS: A total of 449 (mean age: 45.8 +/- 13.7 years) healthy volunteers (198 men and 251 women) were enrolled at the collaborating institutions of the Normal Reference Ranges for Echocardiography (NORRE) study. A comprehensive echocardiographic examination was obtained from all subjects following predefined protocols. The majority of the Doppler diastolic parameters (e', E/e') as well as right ventricle systolic s' wave velocity were similar in men and women. Left ventricle s' wave velocity was higher in men than in women. E wave and e' were higher in younger subjects and decreased progressively in the older ones. E/e' ratio increased with ageing. Septal e' <8 cm/s was present in 19.7% of the subjects in the 40-60 year group and in 55% of those in the >/=60 year group. However, the cut-off value of average E/e' or lateral E/e' remained <15 or 13, respectively, in the majority of patients. CONCLUSION: The NORRE study provides the reference values for the most useful Doppler parameters in the evaluation of heart physiology. These data highlight the need of using age-specific reference values especially for the diagnosis of LV systolic and diastolic dysfunction and for the estimation of LV filling pressures. [less ▲]

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See detailClinical Significance of Exercise Pulmonary Hypertension in Secondary Mitral Regurgitation.
Lancellotti, Patrizio ULg; Magne, Julien; DULGHERU, Raluca Elena ULg et al

in The American journal of cardiology (2015)

In patients with heart failure, exercise echocardiography can help in risk stratification and decision making. The prognostic significance of exercise pulmonary hypertension (PH) in patients with ... [more ▼]

In patients with heart failure, exercise echocardiography can help in risk stratification and decision making. The prognostic significance of exercise pulmonary hypertension (PH) in patients with secondary mitral regurgitation (MR) remains unknown. The aim of the present study was to assess the prognostic value of exercise PH in patients with secondary MR and narrow QRS intervals. From 2005 to 2012, 159 consecutive patients with secondary MR, narrow QRS intervals, left ventricular dysfunction (mean ejection fraction 36 +/- 7%), and measurable systolic pulmonary arterial pressure (SPAP) during exercise echocardiography were included. Resting and exercise PH were defined as SPAP >50 and >60 mm Hg, respectively. Exercise PH was more frequent than resting PH (40% vs 13%, p <0.0001). On multivariate logistic regression, the independent determinants of exercise PH were resting SPAP (p <0.0001), exercise MR severity (p <0.0001), and e'-wave velocity (p = 0.004). The incidence of cardiac events during follow-up was significantly higher in patients with exercise PH compared with those without exercise PH (4 years: 40 +/- 7% vs 20 +/- 5%, p <0.0001). Patients with exercise PH exhibited higher rates of cardiac events and death than those with resting PH. In a multivariate Cox proportional hazards model, exercise PH was independently associated with the occurrence of cardiac events (p <0.0001). In conclusion, in patients with secondary MR, exercise PH is determined mainly by resting SPAP, left ventricular diastolic burden, and exercise MR severity. Exercise PH is a powerful predictor of poor outcomes, with a 5.3-fold increased risk for cardiac-related death during follow-up. These results highlight the added value of exercise echocardiography in secondary MR. [less ▲]

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See detailReply: valvular disease, myocardial mechanics, and valve guidelines.
Donal, Erwan; Lancellotti, Patrizio ULg; Sengupta, Partho P. et al

in JACC. Cardiovascular imaging (2015), 8(3), 383

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See detailE-learning in cardiovascular imaging: another step towards a structured educational approach.
Cosyns, Bernard; De Diego, Jose Juan Gomez; Stefanidis, Alexandros et al

in European heart journal cardiovascular Imaging (2015)

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See detailEACVI/HFA Cardiac Oncology Toxicity Registry in breast cancer patients: rationale, study design, and methodology (EACVI/HFA COT Registry)-EURObservational Research Program of the European Society of Cardiology.
Lancellotti, Patrizio ULg; Anker, Stefan D.; Donal, Erwan et al

in European heart journal cardiovascular Imaging (2015)

The goal of adjuvant anti-cancer therapies is cure with limited or no side effects, in particular long-term side effects with negative impact on quality of life. In the palliative setting disease control ... [more ▼]

The goal of adjuvant anti-cancer therapies is cure with limited or no side effects, in particular long-term side effects with negative impact on quality of life. In the palliative setting disease control, quality of life and overall survival are important end points. Partly due to improvements in treatment, the population of cancer survivors is large and growing. However, anti-cancer drug-related cardiotoxicity (ADRC) is the leading cause of treatment-associated mortality in cancer survivors. It is one of the most common post-treatment problems among 5- to 10-year survivors of adult cancer. This is particularly true for breast cancer, the most common cancer in women. The EACVI/HFA COT registry is designed for comprehensive data collection and evaluation of the current European practice in terms of diagnosis and management of ADRC in breast cancer patients. The COT registry will be carried out in two continuing phases, the pilot study phase involving 13 countries followed by the long-term registry in which all the 56 ESC countries will be invited to participate. With the COT registry, several critical information will be obtained: on predisposing factors for the development of ADRC, the rate of subclinical LV dysfunction and its transition to overt heart failure, the clinical impact and outcome of ADRC. [less ▲]

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See detailRecommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging.
Lang, Roberto M.; Badano, Luigi P.; Mor-Avi, Victor et al

in European heart journal cardiovascular Imaging (2015), 16(3), 233-70

The rapid technological developments of the past decade and the changes in echocardiographic practice brought about by these developments have resulted in the need for updated recommendations to the ... [more ▼]

The rapid technological developments of the past decade and the changes in echocardiographic practice brought about by these developments have resulted in the need for updated recommendations to the previously published guidelines for cardiac chamber quantification, which was the goal of the joint writing group assembled by the American Society of Echocardiography and the European Association of Cardiovascular Imaging. This document provides updated normal values for all four cardiac chambers, including three-dimensional echocardiography and myocardial deformation, when possible, on the basis of considerably larger numbers of normal subjects, compiled from multiple databases. In addition, this document attempts to eliminate several minor discrepancies that existed between previously published guidelines. [less ▲]

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See detailRole of multimodality cardiac imaging in the management of patients with hypertrophic cardiomyopathy: an expert consensus of the European Association of Cardiovascular Imaging Endorsed by the Saudi Heart Association.
Cardim, Nuno; Galderisi, Maurizio; Edvardsen, Thor et al

in European heart journal cardiovascular Imaging (2015)

Taking into account the complexity and limitations of clinical assessment in hypertrophic cardiomyopathy (HCM), imaging techniques play an essential role in the evaluation of patients with this disease ... [more ▼]

Taking into account the complexity and limitations of clinical assessment in hypertrophic cardiomyopathy (HCM), imaging techniques play an essential role in the evaluation of patients with this disease. Thus, in HCM patients, imaging provides solutions for most clinical needs, from diagnosis to prognosis and risk stratification, from anatomical and functional assessment to ischaemia detection, from metabolic evaluation to monitoring of treatment modalities, from staging and clinical profiles to follow-up, and from family screening and preclinical diagnosis to differential diagnosis. Accordingly, a multimodality imaging (MMI) approach (including echocardiography, cardiac magnetic resonance, cardiac computed tomography, and cardiac nuclear imaging) is encouraged in the assessment of these patients. The choice of which technique to use should be based on a broad perspective and expert knowledge of what each technique has to offer, including its specific advantages and disadvantages. Experts in different imaging techniques should collaborate and the different methods should be seen as complementary, not as competitors. Each test must be selected in an integrated and rational way in order to provide clear answers to specific clinical questions and problems, trying to avoid redundant and duplicated information, taking into account its availability, benefits, risks, and cost. [less ▲]

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See detailThe use of echocardiography in acute cardiovascular care: Recommendations of the European Association of Cardiovascular Imaging and the Acute Cardiovascular Care Association.
Lancellotti, Patrizio ULg; Price, Susanna; Edvardsen, Thor et al

in European heart journal. Acute cardiovascular care (2015)

Echocardiography is one of the most powerful diagnostic and monitoring tools available to the modern emergency/critical care practitioner. Currently, there is a lack of specific European Association of ... [more ▼]

Echocardiography is one of the most powerful diagnostic and monitoring tools available to the modern emergency/critical care practitioner. Currently, there is a lack of specific European Association of Cardiovascular Imaging/Acute Cardiovascular Care Association recommendations for the use of echocardiography in acute cardiovascular care. In this document, we describe the practical applications of echocardiography in patients with acute cardiac conditions, in particular with acute chest pain, acute heart failure, suspected cardiac tamponade, complications of myocardial infarction, acute valvular heart disease including endocarditis, acute disease of the ascending aorta and post-intervention complications. Specific issues regarding echocardiography in other acute cardiac care scenarios are also described. [less ▲]

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See detailNuclear Cardiology Core Syllabus of the European Association of Cardiovascular Imaging (EACVI).
Gimelli, Alessia; Neglia, Danilo; Schindler, Thomas H. et al

in European heart journal cardiovascular Imaging (2015)

The European Association of Cardiovascular Imaging (EACVI) Core Syllabus for Nuclear Cardiology is now available online. The syllabus lists key elements of knowledge in nuclear cardiology. It represents a ... [more ▼]

The European Association of Cardiovascular Imaging (EACVI) Core Syllabus for Nuclear Cardiology is now available online. The syllabus lists key elements of knowledge in nuclear cardiology. It represents a framework for the development of training curricula and provides expected knowledge-based learning outcomes to the nuclear cardiology trainees. [less ▲]

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