digital subtraction angiography


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digital subtraction angiography

[′dij·əd·əl səb′trak·shən ‚an·jē′äg·rə·fē]
(medicine)
A form of digital radiography that delineates blood vessels by subtracting a digitized tissue background image from an image of tissue injected with an intravascular contrast material with a high content of iodine that attenuates x-rays. Abbreviated DSA.
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Paul J Nederkoorn, Yolanda Vander Graff, Myriam Hunink MG: Duplex ultrasound and magnetic resonance angiography compared with digital subtraction angiography in carotid artery stenosis: A Systematic Review: Stroke 2003;34:1324-1332.
Caption: Figure 2: (a) Three-dimensional digital subtraction angiography shows left posterior communicating artery aneurysm (arrow) and left persistent trigeminal artery (PTA) aneurysm (arrowhead).
The use of digital subtraction angiography is thought to be one way to increase the potential safety of performing an injection, to make sure the medication is getting delivered to where you want it around the nerve and not in the bloodstream, where it could potentially go to the spinal cord or the brain and cause a stroke or paralysis.
Digital subtraction angiography (DSA) was performed and showed occlusion of the right MCA and saccular out-pouching of the left MCA bifurcation.
Comparison of spiral CT angiography vs digital subtraction angiography in the evaluation of living kidney donors.
AngioViz yields its information from Digital Subtraction Angiography (DSA), a technique commonly used to show the vascular anatomy.
Digital subtraction angiography (DSA) was done with a biplane digital subtraction angiography unit with 3-D reconstruction (Allura, Philips, Andover, MA).
They verified all but two of these aneurysms either intraoperatively or by CT scan or digital subtraction angiography.
A complete Digital Subtraction Angiography (DSA) run can be seen in one color image.
Digital subtraction angiography (DSA), while traditionally the gold standard, is invasive and associated with potential complications.
Digital subtraction angiography (DSA) is the imaging modality of choice for the evaluation of carotid artery lesions.
To address the increased incidence of stroke, syngo iFlow is reinventing digital subtraction angiography (DSA) by enabling display in color," said Claus Grill, vice president, Angiography, Cardiac, and X-ray Systems, Siemens Medical Solutions USA, Inc.

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