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digital subtraction angiography

   Also found in: Encyclopedia, Wikipedia 0.02 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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Bilateral intra-arterial digital subtraction angiography of the carotid arteries did not detect any feeding vessel.
Fibrous dysplasia in the retropharyngeal area by Ekinci, Cemil / Ear, Nose and Throat Journal
Developed in conjunction with leading neuroradiologists at Johns Hopkins University School of Medicine, Toshiba improves upon the previous three-dimensional digital subtraction angiography (3D-DSA) technology of its Infinix i-series with a new three-dimensional fusion digital subtraction angiography (3D-FDSA) technology.
Toshiba Introduces Its Latest High-Resolution Vascular Imaging ... by Business Wire
Vascularization of head and neck paragangliomas: Comparison of three MR angiographic techniques with digital subtraction angiography.
Pitfalls in imaging: differentiating intravagal and carotid body ... by Andersen, Charles A. / Ear, Nose and Throat Journal
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