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Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Techniques, Cardiovascular > Angiography > Angiography, Digital Subtraction
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Radiography > Angiography > Angiography, Digital Subtraction
Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Subtraction Technique > Angiography, Digital Subtraction
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Radiography > Radiographic Image Enhancement > Angiography, Digital Subtraction
... > Information Science > Computing Methodologies > Image Processing, Computer-Assisted > Image Enhancement > Radiographic Image Enhancement > Angiography, Digital Subtraction
Investigative Techniques > Photography > Image Enhancement > Radiographic Image Enhancement > Angiography, Digital Subtraction
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Photography > Image Enhancement > Radiographic Image Enhancement > Angiography, Digital Subtraction

Preferred term

Angiography, Digital Subtraction  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • Digital Subtraction Angiography
  • Subtraction Angiography, Digital

Scope note

  • A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.

History note

  • 90

In other languages

URI

http://www.yso.fi/onto/mesh/D015901

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RDF/XML TURTLE JSON-LD Created 5/15/89, last modified 7/8/08