Vascular Ultrasound Registry Review

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A series of vocabulary flashcards based on key concepts from vascular ultrasound and anatomy studies, designed to assist with exam preparation.

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27 Terms

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Hemodynamics

The study of blood moving through the circulatory system.

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Vasoconstriction

A narrowing of blood vessels which increases resistance and decreases blood flow.

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Vasodilation

A widening of blood vessels which decreases resistance and increases blood flow.

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Doppler Effect

The change in frequency of a wave in relation to an observer who is moving relative to the wave source.

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Transducer

A device that converts one form of energy into another, commonly used in ultrasound.

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Stenosis

Narrowing of a blood vessel that can restrict blood flow.

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Aneurysm

An abnormal bulge in the wall of a blood vessel caused by weakness in the vessel wall.

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Plaque

A buildup of fatty deposits in arteries that can lead to blockages.

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Turbulent Flow

Irregular, chaotic flow patterns often occurring around obstructions.

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Embolism

The blockage of a blood vessel by a foreign object such as a blood clot or air bubble.

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DVT

Deep Vein Thrombosis, a condition in which a blood clot forms in a deep vein, often in the legs.

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Intravenous

Pertaining to blood vessels, typically used to describe the administration of fluids or medications.

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Arteriovenous Fistula

An abnormal connection between an artery and a vein, bypassing the capillary system.

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Vena Cava

The large vein that carries deoxygenated blood back to the heart.

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Capillaries

The smallest blood vessels where gas and nutrient exchange occurs.

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Spectral Doppler

A form of Doppler ultrasound that provides information on the speed and direction of blood flow.

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Peripheral Artery Disease (PAD)

A circulatory condition in which narrowed arteries reduce blood flow to the limbs.

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Ischemia

Insufficient blood flow to the tissues, leading to a shortage of oxygen needed for cellular metabolism.

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Atherosclerosis

A disease in which plaque builds up inside arteries.

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Raynaud's Phenomenon

Episodes of vasospasm causing reduced blood flow, often in response to cold or stress.

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Inferior Vena Cava (IVC)

The large vein that carries blood from the lower body to the right atrium of the heart.

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Tardus Parvus

A specific waveform pattern seen in Doppler studies indicating proximal arterial disease.

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Transcranial Doppler

An ultrasound test used to examine blood flow in the brain's major arteries.

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B-mode Imaging

A 2D ultrasound imaging technique that provides a cross-sectional view of tissues.

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Plethysmography

A test to measure changes in volume within an organ or whole body.

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Balloon Angioplasty

A procedure to widen narrowed or obstructed blood vessels.

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Bypass Graft

A surgical procedure to create a new path for blood flow around a blocked artery.