{"id":72225,"date":"2025-11-01T12:00:00","date_gmt":"2025-11-01T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d"},"modified":"2025-11-01T21:24:43","modified_gmt":"2025-11-01T21:24:43","slug":"sonde-ultrasonore-visualise-circulation-sanguine-en-4d","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d","title":{"rendered":"Sonde Ultrasonore Visualise Circulation Sanguine en 4D"},"content":{"rendered":"

Africa-Press – Senegal. <\/strong><\/span>Voir la circulation sanguine d\u2019un organe en 4D (c\u2019est-a\u0300-dire dans un relief qui e\u0301volue en temps re\u0301el), c\u2019est de\u0301sormais possible. La preuve, avec pour la premie\u0300re fois des images ultra-pre\u0301cises de la microcirculation d\u2019un organe entier tout juste publie\u0301es dans la revue Nature.<\/p>\n

Une observation qui va des gros vaisseaux aux \u00ab arte\u0301rioles pre\u0301capillaires \u00bb<\/b><\/p>\n

Ce travail pionnier, mene\u0301 a\u0300 ce jour uniquement chez l\u2019animal, est le fruit des travaux d\u2019une e\u0301quipe de chercheurs de l\u2019Institut Physique pour la Me\u0301decine (Inserm\/ESPCI Paris-PSL\/CNRS). Les scientifiques ont employe\u0301 une nouvelle sonde ultrasonore combinant plusieurs lentilles pour obtenir un grand champ de vision. Elle a e\u0301te\u0301 de\u0301veloppe\u0301e dans le cadre des travaux de the\u0300se de Nabil Haidour sous la direction de Cle\u0301ment Papadacci. Ce dispositif a permis de cartographier de fac\u0327on dynamique le re\u0301seau complexe des vaisseaux sanguins qui acheminent le sang vers les tissus et les organes. Et le re\u0301sultat est assez bluffant, les images d\u2019arborescence vasculaire se cre\u0301ant en direct sous les yeux du spectateur.<\/p>\n

Ce travail constitue une premie\u0300re dans le domaine de l\u2019imagerie car a\u0300 ce jour aucune me\u0301thode ne permettait de visualiser la microcirculation en 4D et a\u0300 l\u2019e\u0301chelle d\u2019un organe entier. Ici, des c\u0153urs, reins et foies animaux de cochon ont e\u0301te\u0301 cartographie\u0301s avec une pre\u0301cision jamais e\u0301gale\u0301e.<\/p>\n

L\u2019objectif n\u2019est e\u0301videmment pas de simplement voir, mais surtout d\u2019analyser et d\u2019e\u0301valuer l\u2019inte\u0301grite\u0301 du syste\u0300me circulatoire dans son ensemble, des grandes arte\u0300res (la plus grosse e\u0301tant l\u2019aorte de 2,5 cm de diame\u0300tre) jusqu\u2019aux plus fines arte\u0301rioles (moins de 100 microme\u0300tres). \u00ab Notre approche permet une analyse plus approfondie de l\u2019he\u0301modynamique, des gros vaisseaux aux arte\u0301rioles pre\u0301capillaires, en fournissant des ensembles de donne\u0301es vastes et riches sur la vascularisation de l\u2019organe entier \u00bb, e\u0301crivent les auteurs dans leur abstract.<\/p>\n

Faciliter le diagnostic de certaines pathologies lie\u0301es a\u0300 la circulation du sang<\/b><\/p>\n

\u00ab Elle pourrait e\u0301galement contribuer a\u0300 faire progresser le diagnostic des troubles de la microcirculation et le suivi des traitements des maladies des petits vaisseaux, maladies pour lesquelles le diagnostic est complexe et se fait par exclusion des autres pathologies \u00bb, pre\u0301cise le premier auteur, Cle\u0301ment Papadacci. Car c\u2019est bien la\u0300 tout l\u2019inte\u0301re\u0302t de cette nouvelle imagerie qui doit maintenant passer a\u0300 l\u2019e\u0301tape clinique, un essai e\u0301tant pre\u0301vu aupre\u0300s d\u2019une quarantaine de personnes.<\/p>\n

Ce de\u0301veloppement pourrait a\u0300 la fois permettre de mieux comprendre l\u2019appareil circulatoire (veines, arte\u0300res, vaisseaux et syste\u0300me lymphatique), mais aussi de faciliter le diagnostic de certaines pathologies lie\u0301es a\u0300 la circulation du sang. Ces travaux seront mene\u0301s avec l\u2019aide de l\u2019ART Ultrasons biome\u0301dicaux, un acce\u0301le\u0301rateur de recherche technologique cre\u0301e\u0301 par l\u2019Inserm et inte\u0301gre\u0301 a\u0300 l\u2019Institut Physique pour la me\u0301decine. \u00ab La sonde pourra e\u0302tre connecte\u0301e a\u0300 un e\u0301quipement portable de petite taille qui permettrait son inte\u0301gration dans la pratique me\u0301dicale \u00bb, pre\u0301voit ainsi Cle\u0301ment Papadacci.<\/p>\n

Pour plus d’informations et d’analyses sur la Senegal<\/span>, suivez Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Senegal. Voir la circulation sanguine d\u2019un organe en 4D (c\u2019est-a\u0300-dire dans un relief qui e\u0301volue en temps re\u0301el), c\u2019est de\u0301sormais possible. La preuve, avec pour la premie\u0300re fois des images ultra-pre\u0301cises de la microcirculation d\u2019un organe entier tout juste publie\u0301es dans la revue Nature. Une observation qui va des gros vaisseaux aux \u00ab […]<\/p>\n","protected":false},"author":82,"featured_media":72224,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-72225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"\nSonde Ultrasonore Visualise Circulation Sanguine en 4D - Senegal<\/title>\n<meta name=\"description\" content=\"Voir la circulation sanguine d\u2019un organe en 4D (c\u2019est-a\u0300-dire dans un relief qui e\u0301volue en temps re\u0301el), c\u2019est de\u0301sorma ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sonde Ultrasonore Visualise Circulation Sanguine en 4D\" \/>\n<meta property=\"og:description\" content=\"Voir la circulation sanguine d\u2019un organe en 4D (c\u2019est-a\u0300-dire dans un relief qui e\u0301volue en temps re\u0301el), c\u2019est de\u0301sorma ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-01T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-01T21:24:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/11\/sm_1762060844.642645.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Sonde Ultrasonore Visualise Circulation Sanguine en 4D\",\"datePublished\":\"2025-11-01T12:00:00+00:00\",\"dateModified\":\"2025-11-01T21:24:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d\"},\"wordCount\":573,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/11\/sm_1762060844.642645.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/sonde-ultrasonore-visualise-circulation-sanguine-en-4d\",\"name\":\"Sonde Ultrasonore Visualise Circulation Sanguine en 4D - 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