radiopaedia.org

• charset: utf-8
• name: viewport content: width=device-width, initial-scale=1
• property: og:image content: https://prod-assets-static.radiopaedia.org/assets/logo-df506a0aadc0a350b39ce927c6bfbe714e50db1b4a3282bb558218c7b49fd488.png
• property: og:site_name content: Radiopaedia
• property: og:type content: website
• property: og:url content: https://radiopaedia.org/
• name: csrf-param content: authenticity_token
• name: csrf-token content: On_ziYZHLC3zWDeMD8Q4uVPXuWLxilDhAubAg11gmyVm1lvaxQk7pFhoWYG5LvQzYCBrdoqWn4HznBT3HYr4tw
• name: robots content: max-image-preview:large
• name: cf-ray-id content: 9cc413fdbb189a3b-FRA
• equiv: origin-trial content: AlK2UR5SkAlj8jjdEc9p3F3xuFYlF6LYjAML3EOqw1g26eCwWPjdmecULvBH5MVPoqKYrOfPhYVL71xAXI1IBQoAAAB8eyJvcmlnaW4iOiJodHRwczovL2RvdWJsZWNsaWNrLm5ldDo0NDMiLCJmZWF0dXJlIjoiV2ViVmlld1hSZXF1ZXN0ZWRXaXRoRGVwcmVjYXRpb24iLCJleHBpcnkiOjE3NTgwNjcxOTksImlzU3ViZG9tYWluIjp0cnVlfQ==
• equiv: origin-trial content: Amm8/NmvvQfhwCib6I7ZsmUxiSCfOxWxHayJwyU1r3gRIItzr7bNQid6O8ZYaE1GSQTa69WwhPC9flq/oYkRBwsAAACCeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXN5bmRpY2F0aW9uLmNvbTo0NDMiLCJmZWF0dXJlIjoiV2ViVmlld1hSZXF1ZXN0ZWRXaXRoRGVwcmVjYXRpb24iLCJleHBpcnkiOjE3NTgwNjcxOTksImlzU3ViZG9tYWluIjp0cnVlfQ==
• equiv: origin-trial content: A9nrunKdU5m96PSN1XsSGr3qOP0lvPFUB2AiAylCDlN5DTl17uDFkpQuHj1AFtgWLxpLaiBZuhrtb2WOu7ofHwEAAACKeyJvcmlnaW4iOiJodHRwczovL2RvdWJsZWNsaWNrLm5ldDo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
• equiv: origin-trial content: A93bovR+QVXNx2/38qDbmeYYf1wdte9EO37K9eMq3r+541qo0byhYU899BhPB7Cv9QqD7wIbR1B6OAc9kEfYCA4AAACQeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXN5bmRpY2F0aW9uLmNvbTo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
• equiv: origin-trial content: A1S5fojrAunSDrFbD8OfGmFHdRFZymSM/1ss3G+NEttCLfHkXvlcF6LGLH8Mo5PakLO1sCASXU1/gQf6XGuTBgwAAACQeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXRhZ3NlcnZpY2VzLmNvbTo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9

• http://radiopaedia.org/#
• About
• Articles
• Cases
• Courses
• Questions
• Quiz
• Recent Edits
• Supporters
• Log In
• Sign up
• http://radiopaedia.org/#menu
• Radiopaedia.org
• http://radiopaedia.org/#search
• Articles
• Cases
• Log in
• Go ad-free
• https://radiopaedia.org/courses/paediatric-x-ray-essentials-chest
• Articles
• Anatomy
• Approach
• Artificial Intelligence
• Classifications
• Gamuts
• Imaging Technology
• Interventional Radiology
• Mnemonics
• Nuclear Medicine
• Pathology
• Radiography
• Signs
• Staging
• Syndromes
• Breast
• Cardiac
• Central Nervous System
• Chest
• Forensic
• Gastrointestinal
• Gynaecology
• Haematology
• Head & Neck
• Hepatobiliary
• Interventional
• Musculoskeletal
• Obstetrics
• Oncology
• Paediatrics
• Spine
• Trauma
• Urogenital
• Vascular
• Breast
• Cardiac
• Central Nervous System
• Chest
• Forensic
• Gastrointestinal
• Gynaecology
• Haematology
• Head & Neck
• Hepatobiliary
• Interventional
• Musculoskeletal
• Obstetrics
• Oncology
• Paediatrics
• Spine
• Trauma
• Urogenital
• Vascular
• Not Applicable
• Editorial Board
• Radiopaedia Team
• Help
• Contact Us
• Terms of Use
• Privacy Policy
• Licensing
• Sponsorship
• Developers
• medical professionals
• use of cookies

            Domain Name: RADIOPAEDIA.ORG
Registrar: Amazon Registrar, Inc.
Domain Status: client delete prohibited
Domain Status: client transfer prohibited
Domain Status: client update prohibited
Registry Expiry Date: 2028-01-11T04:29:17.761Z
Creation Date: 2007-01-11T04:29:17.761Z
Updated Date: 2024-10-15T02:41:45.287Z
Name Server: DARWIN.NS.CLOUDFLARE.COM
Name Server: EMILY.NS.CLOUDFLARE.COM
REGISTRAR Contact: Amazon Registrar, Inc.
>>> Last update of RDAP database: 2026-01-18T06:39:38Z         

			# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a Content-Signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a Content-Signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a Content-Signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via Content-Signal with respect to the corresponding use.

# The content signals and their meanings are:

# search:   building a search index and providing search results (e.g., returning
#           hyperlinks and short excerpts from your website's contents). Search does not
#           include providing AI-generated search summaries.
# ai-input: inputting content into one or more AI models (e.g., retrieval
#           augmented generation, grounding, or other real-time taking of content for
#           generative AI search answers).
# ai-train: training or fine-tuning AI models.

# ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF
# RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT
# AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET.

# BEGIN Cloudflare Managed content

User-agent: *
Content-Signal: search=yes,ai-train=no
Allow: /

User-agent: Amazonbot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: meta-externalagent
Disallow: /

# END Cloudflare Managed Content

Crawl-delay: 10
Sitemap: https://radiopaedia.org/sitemap?lang=us
User-agent: AdsBot-Google
Allow: /
User-agent: AdsBot-Google-Mobile
Allow: /
User-agent: Mediapartners-Google
Allow: /
User-agent: Googlebot-Image
Allow: /
User-agent: *
Disallow: /admin/
Disallow: /admin
Disallow: /questions/
Disallow: /questions
Disallow: /search/
Disallow: /search
Disallow: /tags/
Disallow: /tags
Disallow: /playlists/
Disallow: /playlists
Disallow: /edits/
Disallow: /edits
Disallow: /articles/missing
Disallow: /sessions/new
Disallow: /cases/new
Disallow: /playlists/new
Disallow: /articles/new
Disallow: /packs/
Disallow: /assets/
Disallow: /signup-modal-props.json
Disallow: /api/
Disallow: /chat/
Disallow: /signup-data/
Disallow: /*/edit$
Disallow: /*/new$
        

SEO tècnic

SEO a la pàgina

Contingut i UX