" /> angiography, digital subtraction - CISMeF





Preferred Label : angiography, digital subtraction;

MeSH 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.;

MeSH synonym : subtraction angiography, digital; digital subtraction angiography;

MeSH annotation : /drug eff /rad eff permitted; do not use /util except by MeSH definition; DF: DS ANGIOGR;

Wikipedia link : https://en.wikipedia.org/wiki/Angiography, digital subtraction;

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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.

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06/05/2025


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