{"id":5984,"date":"2026-07-31T13:04:08","date_gmt":"2026-07-31T13:04:08","guid":{"rendered":"https:\/\/www.impc.fr\/?p=5984"},"modified":"2026-09-03T12:14:11","modified_gmt":"2026-09-03T12:14:11","slug":"pourquoi-passer-une-irm-lombaire","status":"publish","type":"post","link":"https:\/\/www.impc.fr\/en\/pourquoi-passer-une-irm-lombaire\/","title":{"rendered":"Pourquoi passer une IRM lombaire ?"},"content":{"rendered":"

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Pourquoi passer une IRM lombaire ? Ce qu’il faut savoir avant l’examen<\/h1>\n

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Si votre m\u00e9decin vous a prescrit une <\/span>IRM lo<\/b><\/a><\/b><\/a>mbaire<\/b><\/a><\/span>, c’est qu’il souhaite explorer votre bas du dos pour comprendre l’origine d’une douleur persistante, d’une sciatique ou d’une g\u00eane qui ne s’am\u00e9liore pas avec les premiers traitements. La lombalgie touche la grande majorit\u00e9 des adultes au cours de leur vie, et l’IRM reste l’examen de r\u00e9f\u00e9rence pour explorer les structures du dos en profondeur. Voici les r\u00e9ponses aux questions les plus fr\u00e9quentes avant de passer cet examen.<\/span><\/p>\n

Pourquoi mon m\u00e9decin demande-t-il une IRM plut\u00f4t que d’attendre que \u00e7a passe ?<\/b><\/h2>\n

Dans la majorit\u00e9 des cas de mal de dos r\u00e9cent, une IRM imm\u00e9diate n’est pas n\u00e9cessaire, car la douleur s’am\u00e9liore souvent d’elle-m\u00eame avec du repos relatif et un traitement adapt\u00e9. L’IRM devient pertinente lorsque la douleur persiste malgr\u00e9 ce traitement, lorsqu’une <\/span>sciatique<\/b> s’accompagne de sympt\u00f4mes neurologiques comme un engourdissement ou une faiblesse musculaire, ou lorsqu’un signal d’alerte particulier justifie une exploration plus rapide. Elle permet de visualiser pr\u00e9cis\u00e9ment les disques, les nerfs et les structures que la radiographie ne montre pas.<\/span><\/p>\n

Est-ce que le fait de me prescrire cet examen signifie que c’est grave ?<\/b><\/h2>\n

C’est une inqui\u00e9tude tr\u00e8s fr\u00e9quente, et elle m\u00e9rite une r\u00e9ponse nuanc\u00e9e. Dans la plupart des situations, l’IRM lombaire est prescrite pour mieux comprendre une douleur qui dure, pas parce qu’une pathologie grave est d\u00e9j\u00e0 suspect\u00e9e. Elle sert justement \u00e0 \u00e9carter certaines causes et \u00e0 orienter le traitement le plus adapt\u00e9, qu’il s’agisse de kin\u00e9sith\u00e9rapie, d’un traitement m\u00e9dicamenteux ou, plus rarement, d’un avis chirurgical.<\/span><\/p>\n

Si l’IRM montre une hernie discale, est-ce que je vais devoir \u00eatre op\u00e9r\u00e9 ?<\/b><\/h2>\n

C’est probablement la crainte la plus r\u00e9pandue, et il est important de la relativiser. Une <\/span>hernie discale<\/b> ou une usure du disque intervert\u00e9bral est une d\u00e9couverte extr\u00eamement fr\u00e9quente \u00e0 l’IRM, y compris chez des personnes qui ne ressentent absolument aucune douleur. Plus les appareils deviennent pr\u00e9cis, plus ils r\u00e9v\u00e8lent des variations anatomiques normales li\u00e9es au vieillissement, sans lien direct avec la douleur ressentie. Le radiologue et votre m\u00e9decin interpr\u00e8tent toujours l’image en tenant compte de vos sympt\u00f4mes r\u00e9els, de votre examen clinique et de votre histoire, pas seulement de ce qui appara\u00eet sur les clich\u00e9s. Une hernie visible ne signifie donc pas automatiquement une op\u00e9ration : la grande majorit\u00e9 des cas se traitent <\/span>sans chirurgie<\/b>.<\/span><\/p>\n

Qu’est-ce que cet examen va concr\u00e8tement r\u00e9v\u00e9ler ?<\/b><\/h2>\n

L’IRM lombaire permet de visualiser en d\u00e9tail les vert\u00e8bres, les disques intervert\u00e9braux, la moelle \u00e9pini\u00e8re et les nerfs. Elle peut montrer une hernie discale, une <\/span>d\u00e9g\u00e9n\u00e9rescence discale<\/b>, un pincement, une compression nerveuse \u00e0 l’origine d’une sciatique, ou plus rarement une inflammation, une infection ou une anomalie osseuse. Cette pr\u00e9cision aide votre m\u00e9decin \u00e0 comprendre exactement quelle structure est en cause, ce qui conditionne le type de prise en charge propos\u00e9.<\/span><\/p>\n

Dois-je m’inqui\u00e9ter si mes r\u00e9sultats mentionnent de l’arthrose ou une d\u00e9g\u00e9n\u00e9rescence ?<\/b><\/h2>\n

Non, et c’est important \u00e0 comprendre. Les termes utilis\u00e9s dans un compte rendu d’IRM peuvent sembler alarmants alors qu’ils d\u00e9crivent des ph\u00e9nom\u00e8nes tr\u00e8s courants li\u00e9s au vieillissement naturel de la colonne vert\u00e9brale. De nombreuses personnes pr\u00e9sentent des signes d’<\/span>arthrose<\/b> ou de d\u00e9g\u00e9n\u00e9rescence discale visibles \u00e0 l’imagerie sans jamais ressentir la moindre douleur. Ces mots d\u00e9crivent une image, pas n\u00e9cessairement votre ressenti quotidien. N’h\u00e9sitez pas \u00e0 demander \u00e0 votre m\u00e9decin de vous expliquer clairement ce que signifie votre compte rendu dans votre situation pr\u00e9cise.<\/span><\/p>\n

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Prenez rendez-vous pour une IRM dans nos centres<\/p>\n

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Prise de rendez-vous IRM – Paris 75002<\/p>\n

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Prise de rendez-vous IRM – Paris 75009 – P\u00f4le Sant\u00e9 Berg\u00e8re<\/p>\n

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Prise de rendez-vous IRM – Paris 75009 – Clinique Drouot<\/p>\n

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Prise de rendez-vous IRM – Paris 75015<\/p>\n

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Comment se d\u00e9roule l’examen, et dois-je craindre le tunnel ?<\/b><\/h2>\n

L’IRM lombaire est un examen <\/span>indolore<\/b>, r\u00e9alis\u00e9 en position allong\u00e9e sur le dos, dans un appareil en forme de tunnel. Elle dure g\u00e9n\u00e9ralement entre vingt et trente minutes, pendant lesquelles il faut rester immobile. Si vous appr\u00e9hendez l’espace confin\u00e9, signalez le \u00e0 l’\u00e9quipe avant l’examen : plusieurs centres disposent d’appareils semi-ouverts, plus confortables pour les personnes anxieuses ou claustrophobes, et un accompagnement adapt\u00e9 peut toujours \u00eatre propos\u00e9.<\/span><\/p>\n

Que se passe-t-il apr\u00e8s l’examen ?<\/b><\/h2>\n

Aucune restriction n’est n\u00e9cessaire apr\u00e8s une IRM lombaire : vous pouvez reprendre vos activit\u00e9s habituelles d\u00e8s la sortie. Le radiologue analyse les images et transmet un <\/span>compte rendu d\u00e9taill\u00e9<\/b> \u00e0 votre m\u00e9decin prescripteur, qui vous expliquera les r\u00e9sultats et la marche \u00e0 suivre lors de votre prochaine consultation, en les remettant toujours en perspective avec vos sympt\u00f4mes r\u00e9els.<\/span><\/p>\n

Passer votre IRM lombaire chez IMPC<\/b><\/h2>\n

Chez <\/span>IMPC<\/b>, nos centres disposent d’\u00e9quipements adapt\u00e9s au confort des patients, y compris pour les personnes anxieuses ou claustrophobes. Nos radiologues sp\u00e9cialis\u00e9s en imagerie du rachis prennent le temps d’expliquer les r\u00e9sultats dans leur contexte r\u00e9el, sans dramatiser des d\u00e9couvertes fr\u00e9quentes et sans gravit\u00e9. Prise de rendez-vous en ligne ou par t\u00e9l\u00e9phone, dans l’un de nos <\/span>dix centres \u00e0 Paris<\/b>.<\/span><\/p>\n

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Douleur au dos ou sciatique persistante ? D\u00e9couvrez pourquoi votre m\u00e9decin prescrit une IRM lombaire, ce que les r\u00e9sultats signifient r\u00e9ellement, et pourquoi une hernie discale visible ne m\u00e8ne pas toujours \u00e0 une op\u00e9ration.<\/p>","protected":false},"author":5,"featured_media":5986,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"1080","footnotes":""},"categories":[272],"tags":[],"class_list":["post-5984","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-irm"],"yoast_head":"\nPourquoi passer une IRM lombaire ? - Groupe IMPC - Imagerie M\u00e9dicale<\/title>\n<meta name=\"description\" content=\"Pourquoi passer une IRM lombaire ? Ce qu'elle r\u00e9v\u00e8le vraiment, et pourquoi une hernie visible ne veut pas dire op\u00e9ration. 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