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Digital subtraction angiography
? TBD
Method for delineating blood vessels using contrast medium
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Wikipedia

Digital subtraction angiography (DSA) is a fluoroscopy technique used in interventional radiology to clearly visualize blood vessels in a bony or dense soft tissue environment. Images are produced using contrast medium by subtracting a "pre-contrast image" or mask from subsequent images, once the contrast medium has been introduced into a...

Subclass of
Angiography
References
Wikidata