Vas week 5: Key Terms & Concepts Arterial Duplex Imaging

In this image the aorta is dilated focally to > 3 cm in diameter. All three layers of the wall are expanding. What is the term used to describe this condition?

Aneurysm

In this diagram the arrows indicate blood flow. Note the swirling blood flow encapsulated next to artery? What is this?

Pseudoaneurysm

Narrowing in artery or vein that causes a focal increase in velocities.

hemodynamic significant stenosis

A vessel that is open with blood flowing through is considered

Patent

A vessel with no flow is considered

Occluded

The ___________________________ found in the neck of a pseudoaneurysm will demonstrate blood flow in to and out of the pulsating hematoma.

To-and-Fro flow

In this procedure, guidewires and catheters are inserted through vascular access in groin, navigated to area of narrowing to reopen artery and perfuse leg. Which type of procedure is this?

Angioplasty

Which of the following is mesh tubing used to reinforce vessel wall often placed after angioplasty to maintain vessel patency?

stent

Pseudoaneurysm

False aneurysm; a pulsating encapsulated hematoma that communicates with the adjacent artery. Process occurs from a leakage of blood after an injury to arterial wall.

Plaque

The deposit of fatty material within the vessel walls, which is characteristic of atherosclerosis.

stenosis

Narrowing of a vein

popliteal artery entrapment

occurs when the popliteal artery is compressed by the medial head of the gastrocnemius muscle or adjacent tendons. This repeated extrinsic compression of the popliteal artery produces trauma to vessel wall, which can lead to aneurysm formation, thromboembolism, or arterial thrombosis.

contrast radiography

A radiologic imaging technique performed using ionizing radiation to provide detailed arterial system configuration and pathology information

Neck or Track

Connection between vessel and pseudoaneurysm.

Ying-Yang Symbol

Red-blue swirling pattern consistent with a pseudoaneurysm

Intermittent Claudication

Pain in the buttock, thigh or calf muscles with exercise; relieved by stopping exercise or activity.

Tibioperoneal Trunk

Origin of the PTA and Peroneal artery

Angioplasty

To dilate a blood vessel by using guidewires and catheters through vascular access in groin. Device navigated through vascular system to area of narrowing and vessel dilated. Stent often placed after angioplasty to reinforce vessel wall and maintain patency. Procedure is often performed as outpatient and minimally invasive. Often first procedure in treatment of vascular disease, prior to placing bypass grafts.