Vascular Imaging Glossary
100 terms total — 11 showing — Last updated 15 Sep 2026
coaxial catheter system
Nested catheter arrangement with inner catheter passing through outer guiding catheter.
acquisition matrix
Digital imaging parameter defining the number of data points collected in each spatial dimension during image formation.
arteriogram
An imaging study that visualizes arteries using contrast material, typically obtained through catheter-based angiography...
arteriovenous fistula
An abnormal direct connection between an artery and vein, bypassing the normal capillary bed.
arteriovenous malformation
Abnormal tangle of blood vessels connecting arteries and veins directly without normal capillary beds, creating high-flo...
ECASS criteria
European Cooperative Acute Stroke Study criteria used to classify hemorrhagic transformation types in stroke imaging int...
luminal irregularity
Abnormal variation in the smooth contour of a blood vessel's inner surface, often indicating atherosclerotic disease or...
periprocedural myocardial infarction
Myocardial injury occurring in temporal association with invasive cardiac procedures.
RIND
Reversible Ischemic Neurological Deficit, describing neurological symptoms that resolve within 24 hours but with residua...
vascular territory
Anatomical region supplied by a specific arterial system, critical for understanding perfusion patterns and ischemic ris...
vessel lumen irregularity
Abnormal contour of the vessel's internal channel, indicating potential atherosclerotic disease, dissection, or other va...
volumetric flow rate
Quantitative measurement of blood volume passing through a vessel cross-section per unit time, typically expressed in mL...