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

Preferred term

Angiography, Digital Subtraction  

Type

  • mesh:Descriptor

Definition

  • 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.

Broader concept

Entry terms

  • Digital Subtraction Angiography
  • Subtraction Angiography, Digital

Allowable Qualifier(s)

In other languages

  • Angiographie de soustraction digitale

    French

  • Angiographie de soustraction
  • Angiographie digitale avec soustration
  • Angiographie numérique de soustraction
  • Angiographie numérique DSA
  • Angiographie numérique par soustraction
  • Angiographie numérisée de soustraction
  • Angiographie numérisée DSA
  • ANS (Angiographie Numérique de Soustraction)

URI

http://data.loterre.fr/ark:/67375/JVR-XMW7615P-S

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