Arterial Vascular Imaging Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
contrast nephropathy CIN
Acute kidney injury occurring after intravascular contrast agent administration.
aneurysm
Abnormal focal dilatation of an artery wall that exceeds 150% of the normal vessel diameter.
ankle-brachial index
Diagnostic ratio comparing systolic blood pressure at ankle to arm, used to assess peripheral arterial disease severity.
aortic elongation
Abnormal lengthening of the aorta leading to tortuous configuration, often associated with aging, hypertension, or conne...
arterial access complication
Adverse events related to percutaneous arterial puncture and catheter insertion during vascular procedures.
arterial access site
The specific anatomical location where arterial puncture is performed for catheter-based vascular procedures.
arterial calcification scoring
Quantitative assessment method for measuring calcium deposits in arterial walls using standardized scales.
arterial phase
Specific timing phase during contrast-enhanced imaging when arteries show peak contrast enhancement.
arterial stent
Tubular mesh device deployed within an artery to maintain vessel patency and structural support.
arterial stiffness
Pathophysiological condition characterized by reduced arterial elasticity and increased pulse wave velocity.
arterial tortuosity
Abnormal twisting or coiling of arteries beyond normal anatomical curves, often associated with aging or connective tiss...
arteriographic blush
Persistent contrast staining in tissue indicating active extravasation or hypervascularity.
arteriovenous malformation
Abnormal tangle of blood vessels where arteries connect directly to veins without normal capillary bed. Requires detaile...
atherectomy
Interventional procedure that removes atherosclerotic plaque from arterial walls using cutting or ablative devices.
balloon angioplasty
Interventional procedure using an inflatable balloon to compress arterial plaque and restore vessel patency.
blue-toe syndrome
Clinical condition characterized by acute digital ischemia and cyanosis due to cholesterol or thrombotic embolization.
calcific plaque
Atherosclerotic deposits containing calcium that appear as high-density areas on CT and acoustic shadows on ultrasound,...
catheter-directed thrombolysis
Minimally invasive procedure delivering thrombolytic agents directly into arterial clots via catheter placement.
collateral circulation
Alternative vascular pathways that develop to bypass areas of arterial stenosis or occlusion.
computed tomographic angiography
Cross-sectional imaging technique using contrast-enhanced CT to visualize arterial anatomy and pathology.
contrast bolus timing
The precise coordination of contrast injection with image acquisition to optimize vascular enhancement.
contrast extravasation
Leakage of contrast material outside the vascular lumen, indicating vessel wall injury or perforation.
contrast nephropathy
Acute kidney injury occurring after intravascular contrast agent administration.
contrast timing optimization
Process of determining optimal contrast injection and scan timing for maximal arterial enhancement.
contrast-enhanced
Imaging technique utilizing injected contrast material to improve visualization of blood vessels.