radiography
Sign in to saveRadiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography. Similar techniques are used in airport security, (where "body scanners" generally use backscatter X-ray). To create an image in conventional radiography, a beam of X-rays is produced by an X-ray generator and it is projected towards the object. A certain amount of the X-rays or other radiation are absorbed by t
AI overview
Radiography is an imaging technique that uses X-rays and other types of radiation to create pictures of what's inside objects without opening them up. It's important because it has many practical uses, including helping doctors diagnose medical conditions, treating diseases, inspecting industrial products, and screening for security threats at airports.
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Key facts
- Medical specialty.title
- Radiography
- Medical specialty.subdivisions
- Interventional, Nuclear, Therapeutic, Paediatric
- Medical specialty.image
- Xraymachine.JPG
- Medical specialty.caption
- Projectional radiography of the knee in a modern X-ray machine
- Medical specialty.system
- Musculoskeletal
- Medical specialty.diseases
- Cancer, bone fractures
- Medical specialty.tests
- screening tests, X-ray, CT, MRI, PET, bone scan, ultrasonography, mammography, fluoroscopy
- Medical specialty.specialist
- Radiographer
- Diagnostic.Name
- Radiography
- Diagnostic.ICD9
- , -
- Diagnostic.MeshID
- D011859
- Diagnostic.OPS301
Article
25 sectionsContents
- History
- Medical uses
- Projectional radiography
- Computed tomography
- Dual energy X-ray absorptiometry
- Fluoroscopy
- Contrast radiography
- Other medical imaging
- Industrial radiography
- Image quality
- Radiation dose
- Shielding
- Campaigns
- Provider payment
- Equipment
- Sources
- Grid
- Detectors
- Side markers
- Image intensifiers and array detectors
- Dual-energy<span class="anchor" id="Dual-energy"></span>
- See also
- References
- Further reading
- External links
Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography. Similar techniques are used in airport security, (where "body scanners" generally use backscatter X-ray). To create an image in conventional radiography, a beam of X-rays is produced by an X-ray generator and it is projected towards the object. A certain amount of the X-rays or other radiation are absorbed by the object, dependent on the object's density and structural composition. The X-rays that pass through the object are captured behind the object by a detector (either photographic film or a digital detector). The generation of flat two-dimensional images by this technique is called projectional radiography. In computed tomography (CT scanning), an X-ray source and its associated detectors rotate around the subject, which itself moves through the conical X-ray beam produced. Any given point within the subject is crossed from many directions by many different beams at different times. Information regarding the attenuation of these beams is collated and subjected to computation to generate two-dimensional images on three planes (axial, coronal, and sagittal) which can be further processed to produce a three-dimensional image.
thumb|A medical radiograph of a skull