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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Intraoperative digital subtraction angiography and the surgical treatment of intracranial aneurysms and vascular malformations.
A combination of imaging with carbon dioxide and gadolinium works well for digital subtraction angiography, said Dr.
Internal carotid artery agenesis: Correlation by conventional and digital subtraction angiography, and by computed tomography.
By utilizing the Aquilion ONE Neuro Imaging protocol, which combines non-contrast CT, cerebral blood flow analysis and four-dimensional digital subtraction angiography into a single exam, Millard Fillmore achieved an entire stroke workup in minutes using a single 50cc contrast injection.
Digital subtraction angiography before and 6 months after ATMSC implantation showed formation of numerous vascular collateral networks across affected arteries.
Historically, atraumatic patients with signs of SAH on CT proceeded directly to cerebral catheter digital subtraction angiography (DSA) for underlying aneurysm identification prior to endovascular surgery or conventional neurosurgical clipping.
Researchers compared intra-operative indocyanine green (ICG) video angiography with both intraoperative and postoperative digital subtraction angiography (DSA).
The room's centerpiece is a stereoscopic biplane digital subtraction angiography systemits curvilinear arms nearly reaching the ceiling, encircling a space as broad as a giant redwood trunk.
This hybrid edition also comes with the new SmartVascular software, which enables surgeons to create a digital subtraction angiography at any time without having to take manual intermediate steps.
A minority of patients may still require digital subtraction angiography when CTA examinations are nondiagnostic or have equivocal or indirect findings.
This Neuro ONE acute stroke imaging protocol on Aquilion ONE combines non-contrast CT, cerebral blood flow analysis and four-dimensional digital subtraction angiography (DSA) into a single exam.
Digital subtraction angiography with high frame rate, the possibility of roadmapping and recording video sequences are therefore provided.

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