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digital subtraction angiography
(redirected from Angiography, digital subtraction)

    Also found in: Encyclopedia, Wikipedia 0.04 sec.
digital sub·trac·tion angiography (sb-trkshn)
n.
A computer-assisted x-ray technique that subtracts images of bone and soft tissue to permit viewing of the cardiovascular system.
digital subtraction angiography (DSA),
a method in which radiographic images of blood vessels filled with contrast material are digitized and then subtracted from images obtained before administration of the material. The method increases the contrast between the vessels and the background.
digital subtraction angiography
Radiology A diagnostic technique that uses video equipment and computers to enhance images obtained with conventional angiography


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