Vascular Imaging Glossary

A post-processing technique that displays the minimum pixel values along a ray path through volumetric data.

Magnetic resonance angiography, a non-invasive imaging technique using MRI to visualize blood vessels without ionizing r...

Image reconstruction technique that creates cross-sectional views in planes other than the original acquisition plane fr...

North American Symptomatic Carotid Endarterectomy Trial measurement method for quantifying carotid artery stenosis sever...

Inadequate myocardial reperfusion despite successful restoration of epicardial coronary flow during intervention.

The maximum blood flow velocity measured during the systolic phase of the cardiac cycle.

The passage of blood through tissue capillary beds, delivering oxygen and nutrients.

Myocardial injury occurring in temporal association with invasive cardiac procedures.

Posterior Inferior Cerebellar Artery, a critical vessel in neurovascular imaging requiring careful assessment for stroke...

The total amount or extent of atherosclerotic plaque within a vessel or vascular territory, often expressed as a percent...

A contained rupture of a blood vessel wall with hematoma formation that maintains communication with the vessel lumen.

Doppler ultrasound parameter measuring the variation between peak systolic and end-diastolic velocities relative to mean...

The restoration of blood flow through a previously occluded vessel, either naturally or through intervention.

A Doppler parameter calculated as (PSV - EDV)/PSV that reflects downstream vascular resistance.

Reversible Ischemic Neurological Deficit, describing neurological symptoms that resolve within 24 hours but with residua...

Fluoroscopic technique displaying vessel anatomy as reference overlay during interventional procedures.

A patent vessel distal to an occlusion that receives blood flow through collateral circulation.

The distal vessels that receive blood flow from a proximal arterial system.

Doppler ultrasound phenomenon showing widening of the frequency spectrum due to turbulent flow or increased velocity gra...

Ultrasound technique that displays velocity information as a graph showing frequency shift over time.

Diversion of blood flow from one vascular territory to another due to differential resistance.

Abnormal narrowing of a blood vessel that restricts blood flow.

A blood clot that forms in one location and travels to block a blood vessel elsewhere in the body.

A standardized classification system for grading coronary artery blood flow during angiography.