Jean-Paul Lethor

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In this paper we present a contour tracker on echographic image sequences. To do this, we use a hierarchical approach: we first compute a global estimation of the ventricular motion. Then we use a fine tuning algorithm to adjust the detection of the ventricular wall. The global estimation is based on a parametric motion model with a small number of(More)
In Duchenne's muscular dystrophy (DMD), cardiac function deteriorates with time and heart failure is one of the major causes of death. The aim of the study was to determine if a decrease in the ventricular inotropic reserves could be an early sign of cardiac dysfunction in these children. Nineteen children with DMD (aged 9 to 18 years, mean age 13.6 +/-(More)
A single coronary artery, especially if associated with anterior looping, remains a risk factor when performing an arterial switch operation for transposition of the great arteries. In such a situation, to avoid the risk of overstretching, we used a modification of the aortic autograft concept to transfer the single coronary artery, resulting in a(More)
BACKGROUND Paroxysmal supraventricular tachycardia (SVT) is considered benign in children if the electrocardiogram in sinus rhythm is normal, but causes anxiety in parents, children and doctors. AIMS To report on the clinical and electrophysiological data from children with SVT, their follow-up and management. METHODS Overall, 188 children/teenagers(More)
BACKGROUND With ablation, the follow-up of preexcitation syndrome now is difficult to assess. The purpose was to collect data of children with a preexcitation syndrome studied on two separate occasions within a minimal interval of 1 year. METHODS This is a retrospective chart review of 47 children initially aged 12 ± 4 years, who underwent two or more(More)
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