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This paper presents a novel method for measurements of internal constraints during an interventional radiology procedure. Fiber-optic strain gauge, operating as a Fabry-Perot interferometer, is inserted and navigated inside a polyvinyl alcohol (PVA) model. The information obtained from deformation of the Fabry-Perot cavity is analyzed and the results are then rescaled through a calibration procedure...
This paper is related to the measurements of the modulus of elasticity of an artery by studying the deformations due to the inflation of an angioplasty balloon catheter used for interventional radiology (IR) procedures. Various types of balloons are studied in order to characterize and compare their behaviors at the time of inflation. A test bench, consisting of an angioplasty balloon, a polyvinyl...
La foudre est une decharge electrique atmospherique de type impulsionnel de tres haute tension et de duree tres breve (15 μs). Elle a deux effets sur l'homme : l'electrisation par coup de foudre direct ou indirect et l'effet de souffle ou blast effect, du a une onde de choc intense (explosion).Les accidents lies a la foudre sont rares mais graves : en moyenne, chaque annee en France, 16 personnes...
Nous rapportons un nouveau cas de rupture spontanée de l'œsophage. Devant une histoire clinique évocatrice (douleurs thoraciques précédées d'efforts de vomissements), le diagnostic est évoqué par la découverte d'un pneumomédiastin sur le scanner thoracique et confirmé par un transit œsophagien. Le patient bénéficie alors d'un geste chirurgical précoce (18 e heure). L'évolution est favorable,...
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