{"id":5968,"date":"2026-06-28T14:50:55","date_gmt":"2026-06-28T14:50:55","guid":{"rendered":"https:\/\/www.impc.fr\/?p=5968"},"modified":"2026-09-03T12:14:22","modified_gmt":"2026-09-03T12:14:22","slug":"pourquoi-passer-un-scanner-thoracique","status":"publish","type":"post","link":"https:\/\/www.impc.fr\/en\/pourquoi-passer-un-scanner-thoracique\/","title":{"rendered":"Pourquoi passer un scanner thoracique ?"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbHero\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb use_background_color_gradient=\u00a0\u00bbon\u00a0\u00bb background_color_gradient_stops=\u00a0\u00bbrgba(0,0,0,0.5) 0%|rgba(0,0,0,0) 100%\u00a0\u00bb background_color_gradient_overlays_image=\u00a0\u00bbon\u00a0\u00bb background_color_gradient_start=\u00a0\u00bbrgba(0,0,0,0.5)\u00a0\u00bb background_color_gradient_end=\u00a0\u00bbrgba(0,0,0,0)\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/www.impc.fr\/wp-content\/uploads\/2020\/06\/irm-centre-radiologie.jpg\u00a0\u00bb custom_margin=\u00a0\u00bb|||\u00a0\u00bb custom_padding=\u00a0\u00bb0||0px||false|false\u00a0\u00bb bottom_divider_color=\u00a0\u00bb#ffffff\u00a0\u00bb bottom_divider_flip=\u00a0\u00bbhorizontal\u00a0\u00bb animation_style=\u00a0\u00bbslide\u00a0\u00bb animation_direction=\u00a0\u00bbtop\u00a0\u00bb animation_intensity_slide=\u00a0\u00bb5%\u00a0\u00bb animation_starting_opacity=\u00a0\u00bb100%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb3_5,2_5&Prime; 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_builder_version=\u00a0\u00bb4.27.4&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbTitle\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.8&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_font=\u00a0\u00bb||||||||\u00a0\u00bb header_font=\u00a0\u00bbMontserrat|600|||||||\u00a0\u00bb header_text_color=\u00a0\u00bb#004D77&Prime; header_font_size=\u00a0\u00bb36px\u00a0\u00bb header_letter_spacing=\u00a0\u00bb-1px\u00a0\u00bb header_2_font=\u00a0\u00bbMontserrat||||||||\u00a0\u00bb header_2_text_color=\u00a0\u00bb#000000&Prime; header_2_font_size=\u00a0\u00bb18px\u00a0\u00bb header_3_font=\u00a0\u00bb||||||||\u00a0\u00bb header_3_text_color=\u00a0\u00bb#ffcc00&Prime; header_3_font_size=\u00a0\u00bb28px\u00a0\u00bb background_layout=\u00a0\u00bbdark\u00a0\u00bb custom_margin=\u00a0\u00bb9px|||||\u00a0\u00bb custom_padding=\u00a0\u00bb|38px||29px|false|false\u00a0\u00bb animation_style=\u00a0\u00bbzoom\u00a0\u00bb animation_direction=\u00a0\u00bbleft\u00a0\u00bb animation_intensity_zoom=\u00a0\u00bb10%\u00a0\u00bb header_font_size_tablet=\u00a0\u00bb\u00a0\u00bb header_font_size_phone=\u00a0\u00bb29px\u00a0\u00bb header_font_size_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb header_line_height_tablet=\u00a0\u00bb\u00a0\u00bb header_line_height_phone=\u00a0\u00bb1.3em\u00a0\u00bb header_line_height_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h1 dir=\"ltr\"><strong>Pourquoi passer un scanner thoracique ? Ce qu&rsquo;il faut savoir avant l&rsquo;examen<\/strong><\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; _builder_version=\u00a0\u00bb4.27.4&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb41px||||false|false\u00a0\u00bb custom_margin_tablet=\u00a0\u00bb41px||||false|false\u00a0\u00bb custom_margin_phone=\u00a0\u00bb41px||||false|false\u00a0\u00bb custom_margin_last_edited=\u00a0\u00bbon|desktop\u00a0\u00bb custom_padding=\u00a0\u00bb0px|||||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb3_5,2_5&Prime; use_custom_gutter=\u00a0\u00bbon\u00a0\u00bb gutter_width=\u00a0\u00bb2&Prime; _builder_version=\u00a0\u00bb4.27.4&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb78%\u00a0\u00bb width_tablet=\u00a0\u00bb90%\u00a0\u00bb width_phone=\u00a0\u00bb97%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|desktop\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb custom_padding=\u00a0\u00bb33px|10px||10px|false|true\u00a0\u00bb make_fullwidth=\u00a0\u00bbon\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb3_5&Prime; _builder_version=\u00a0\u00bb4.16&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb custom_padding__hover=\u00a0\u00bb|||\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.8&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_font=\u00a0\u00bb||||||||\u00a0\u00bb text_text_color=\u00a0\u00bb#000000&Prime; text_font_size=\u00a0\u00bb16px\u00a0\u00bb header_2_font=\u00a0\u00bbMontserrat||||||||\u00a0\u00bb header_2_text_color=\u00a0\u00bb#004D77&Prime; header_2_font_size=\u00a0\u00bb23px\u00a0\u00bb header_3_font=\u00a0\u00bbPoppins||||||||\u00a0\u00bb header_3_text_color=\u00a0\u00bb#004d77&Prime; header_4_font=\u00a0\u00bbPoppins||||on||||\u00a0\u00bb header_4_text_color=\u00a0\u00bbrgba(96,145,150,0.8)\u00a0\u00bb header_4_font_size=\u00a0\u00bb19px\u00a0\u00bb width=\u00a0\u00bb100%\u00a0\u00bb width_tablet=\u00a0\u00bb100%\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|desktop\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_tablet=\u00a0\u00bb125%\u00a0\u00bb max_width_phone=\u00a0\u00bb125%\u00a0\u00bb max_width_last_edited=\u00a0\u00bbon|desktop\u00a0\u00bb custom_margin=\u00a0\u00bb|0px|||false|false\u00a0\u00bb custom_margin_tablet=\u00a0\u00bb|0px||0px|false|false\u00a0\u00bb custom_margin_phone=\u00a0\u00bb|0px||0px|false|false\u00a0\u00bb custom_margin_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb custom_padding=\u00a0\u00bb|51px|||false|false\u00a0\u00bb custom_padding_tablet=\u00a0\u00bb|51px|||false|false\u00a0\u00bb custom_padding_phone=\u00a0\u00bb|0px|||false|false\u00a0\u00bb custom_padding_last_edited=\u00a0\u00bbon|desktop\u00a0\u00bb border_width_right=\u00a0\u00bb1px\u00a0\u00bb border_color_right=\u00a0\u00bb#a3a3a3&Prime; border_width_right_tablet=\u00a0\u00bb0px\u00a0\u00bb border_width_right_phone=\u00a0\u00bb0px\u00a0\u00bb border_width_right_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p dir=\"ltr\">Si votre m\u00e9decin vous a prescrit un <strong>scanner thoracique<\/strong>, c&rsquo;est qu&rsquo;il souhaite obtenir une image d\u00e9taill\u00e9e de vos poumons, de votre c\u0153ur ou des vaisseaux de votre thorax pour comprendre un sympt\u00f4me ou surveiller une pathologie connue. C&rsquo;est un examen rapide et fiable, mais qui soul\u00e8ve souvent des questions sur les rayons X, l&rsquo;injection et ce que l&rsquo;on cherche vraiment \u00e0 voir. Voici les r\u00e9ponses aux interrogations les plus fr\u00e9quentes avant de passer cet examen.<\/p>\n<h2 dir=\"ltr\"><strong>Pourquoi mon m\u00e9decin demande-t-il un scanner plut\u00f4t qu&rsquo;une simple radio des poumons ?<\/strong><\/h2>\n<p dir=\"ltr\">La radiographie thoracique reste utile pour un premier aper\u00e7u global, mais elle ne permet pas de distinguer les d\u00e9tails fins des tissus, des vaisseaux ou des petites l\u00e9sions. Le scanner thoracique offre des images en coupe, beaucoup plus pr\u00e9cises, qui permettent de visualiser l&rsquo;ensemble du thorax en profondeur. Il est prescrit face \u00e0 une toux persistante, un essoufflement inexpliqu\u00e9, une douleur thoracique, un suivi apr\u00e8s un cancer, ou pour explorer une anomalie d\u00e9j\u00e0 rep\u00e9r\u00e9e sur une radiographie. C&rsquo;est \u00e9galement l&rsquo;examen de r\u00e9f\u00e9rence lorsqu&rsquo;une urgence vasculaire, comme une embolie pulmonaire, est suspect\u00e9e.<\/p>\n<h3 dir=\"ltr\"><strong>Est-ce que le fait de me prescrire cet examen signifie qu&rsquo;on soup\u00e7onne un cancer ?<\/strong><\/h3>\n<p dir=\"ltr\">C&rsquo;est souvent la premi\u00e8re crainte qui vient \u00e0 l&rsquo;esprit, et elle est bien compr\u00e9hensible. En r\u00e9alit\u00e9, le scanner thoracique est utilis\u00e9 dans un tr\u00e8s large \u00e9ventail de situations qui n&rsquo;ont rien \u00e0 voir avec un cancer : suivi d&rsquo;une infection pulmonaire, bilan avant une op\u00e9ration, exploration d&rsquo;un essoufflement li\u00e9 \u00e0 une cause b\u00e9nigne, ou simple contr\u00f4le de routine chez une personne ayant des ant\u00e9c\u00e9dents familiaux. Il sert avant tout \u00e0 donner \u00e0 votre m\u00e9decin une image pr\u00e9cise pour \u00e9carter certaines hypoth\u00e8ses ou en confirmer d&rsquo;autres. Recevoir cette prescription ne signifie donc pas qu&rsquo;un diagnostic grave a d\u00e9j\u00e0 \u00e9t\u00e9 pos\u00e9.<\/p>\n<h3 dir=\"ltr\"><strong>Dois-je m&rsquo;inqui\u00e9ter de l&rsquo;irradiation ?<\/strong><\/h3>\n<p dir=\"ltr\">C&rsquo;est une question l\u00e9gitime, car le scanner utilise effectivement des rayons X. Les \u00e9quipes radiologiques appliquent syst\u00e9matiquement le principe de dose minimale n\u00e9cessaire pour obtenir une image exploitable, et les appareils actuels permettent de limiter fortement l&rsquo;exposition par rapport aux g\u00e9n\u00e9rations pr\u00e9c\u00e9dentes. Un scanner isol\u00e9 repr\u00e9sente une exposition comparable \u00e0 celle re\u00e7ue naturellement sur plusieurs mois de vie quotidienne. Si des examens r\u00e9p\u00e9t\u00e9s sont n\u00e9cessaires dans le cadre d&rsquo;un suivi, votre m\u00e9decin \u00e9value toujours le b\u00e9n\u00e9fice attendu par rapport au risque, qui reste tr\u00e8s faible pour un examen ponctuel.<\/p>\n<h3 dir=\"ltr\"><strong>Qu&rsquo;est-ce que cet examen va concr\u00e8tement r\u00e9v\u00e9ler ?<\/strong><\/h3>\n<p dir=\"ltr\">Le scanner thoracique permet de visualiser avec pr\u00e9cision les poumons, le c\u0153ur, les gros vaisseaux, les ganglions et la paroi thoracique. Il peut d\u00e9tecter une infection, une inflammation, un nodule, une masse suspecte, un \u00e9panchement ou une anomalie vasculaire comme une dissection aortique ou une embolie pulmonaire. Cette richesse d&rsquo;information permet au m\u00e9decin de poser un diagnostic fiable et d&rsquo;orienter la prise en charge la plus adapt\u00e9e, qu&rsquo;il s&rsquo;agisse d&rsquo;une simple surveillance, d&rsquo;un traitement m\u00e9dicamenteux ou d&rsquo;un avis sp\u00e9cialis\u00e9 compl\u00e9mentaire.<\/p>\n<h2 dir=\"ltr\"><strong>Faut-il \u00eatre \u00e0 jeun avant l&rsquo;examen ?<\/strong><\/h2>\n<p dir=\"ltr\">Cela d\u00e9pend du type de scanner prescrit. Un scanner thoracique r\u00e9alis\u00e9 sans injection ne n\u00e9cessite aucune pr\u00e9paration particuli\u00e8re. En revanche, si une injection de produit de contraste iod\u00e9 est pr\u00e9vue (pour un angioscanner par exemple), il est recommand\u00e9 de privil\u00e9gier un repas l\u00e9ger et d&rsquo;\u00e9viter de manger dans les heures pr\u00e9c\u00e9dant l&rsquo;examen, car le produit peut provoquer une sensation de naus\u00e9e. Il est \u00e9galement conseill\u00e9 de ne pas fumer avant l&rsquo;examen. Le centre vous pr\u00e9cisera les consignes exactes au moment de la prise de rendez-vous.<\/p>\n<p dir=\"ltr\">\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb2_5&Prime; _builder_version=\u00a0\u00bb4.16&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb80px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb custom_padding__hover=\u00a0\u00bb|||\u00a0\u00bb][et_pb_blurb title=\u00a0\u00bbRDV IRM en ligne\u00a0\u00bb url=\u00a0\u00bbhttps:\/\/www.impc.fr\/contactez-nous\/\u00a0\u00bb use_icon=\u00a0\u00bbon\u00a0\u00bb font_icon=\u00a0\u00bb&#xe023;||divi||400&Prime; icon_color=\u00a0\u00bb#282828&Prime; icon_placement=\u00a0\u00bbleft\u00a0\u00bb image_icon_width=\u00a0\u00bb70px\u00a0\u00bb icon_placement_tablet=\u00a0\u00bbleft\u00a0\u00bb icon_placement_phone=\u00a0\u00bbleft\u00a0\u00bb icon_placement_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.8&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb header_level=\u00a0\u00bbh2&Prime; 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border_width_right_tablet=\u00a0\u00bb0px\u00a0\u00bb border_width_right_phone=\u00a0\u00bb0px\u00a0\u00bb border_width_right_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3 dir=\"ltr\"><strong>Dois-je retenir ma respiration, et pourquoi cela m&rsquo;angoisse un peu ?<\/strong><\/h3>\n<p dir=\"ltr\">C&rsquo;est une inqui\u00e9tude fr\u00e9quente, notamment chez les personnes essouffl\u00e9es ou anxieuses. Pendant l&rsquo;acquisition des images, il vous sera demand\u00e9 de retenir votre respiration pendant quelques secondes seulement, le temps que l&rsquo;appareil capture les coupes du thorax. Ce n&rsquo;est ni long ni difficile pour la grande majorit\u00e9 des patients, et l&rsquo;\u00e9quipe vous guidera clairement \u00e0 chaque \u00e9tape par un micro reli\u00e9 \u00e0 la salle d&rsquo;examen. Si vous avez des difficult\u00e9s respiratoires connues, signalez le avant l&rsquo;examen afin que le protocole soit adapt\u00e9.<\/p>\n<h3 dir=\"ltr\"><strong>Que se passe-t-il apr\u00e8s l&rsquo;examen ?<\/strong><\/h3>\n<p dir=\"ltr\">Aucune restriction particuli\u00e8re n&rsquo;est n\u00e9cessaire apr\u00e8s un scanner thoracique sans injection. Si un produit de contraste a \u00e9t\u00e9 utilis\u00e9, il est simplement recommand\u00e9 de bien s&rsquo;hydrater dans les heures suivantes, afin d&rsquo;aider l&rsquo;organisme \u00e0 l&rsquo;\u00e9liminer. Le radiologue analyse les images et transmet ses conclusions \u00e0 votre m\u00e9decin prescripteur, qui reste votre interlocuteur principal pour interpr\u00e9ter les r\u00e9sultats et d\u00e9cider, si besoin, des prochaines \u00e9tapes.<\/p>\n<h3 dir=\"ltr\"><strong>Passer votre scanner thoracique chez IMPC<\/strong><\/h3>\n<p dir=\"ltr\">Chez <strong>IMPC<\/strong>, nos centres disposent d&rsquo;\u00e9quipements r\u00e9cents permettant de limiter l&rsquo;exposition aux rayons X tout en garantissant une qualit\u00e9 d&rsquo;image optimale. Nos radiologues prennent le temps d&rsquo;expliquer le d\u00e9roulement de l&rsquo;examen et de r\u00e9pondre \u00e0 vos questions, notamment sur la dose re\u00e7ue ou sur ce que l&rsquo;examen va r\u00e9v\u00e9ler. Prise de rendez-vous en ligne ou par t\u00e9l\u00e9phone, dans l&rsquo;un de nos <strong>dix centres \u00e0 Paris<\/strong>.<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/www.impc.fr\/wp-content\/uploads\/2020\/08\/parisimpc.png\u00a0\u00bb title_text=\u00a0\u00bbparisimpc\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Votre m\u00e9decin vous a prescrit un scanner thoracique ? D\u00e9couvrez pourquoi cet examen est demand\u00e9, ce qu&rsquo;il faut savoir sur l&rsquo;irradiation et l&rsquo;injection, et ce que les images r\u00e9v\u00e8lent r\u00e9ellement sur vos poumons et votre c\u0153ur.<\/p>","protected":false},"author":5,"featured_media":0,"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":[273],"tags":[],"class_list":["post-5968","post","type-post","status-publish","format-standard","hentry","category-scanner"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pourquoi passer un scanner thoracique ? - Groupe IMPC - Imagerie M\u00e9dicale<\/title>\n<meta name=\"description\" content=\"Pourquoi passer un scanner thoracique ? 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