Arterial Bypass 2025

Duplex ultrasound

A method used for postoperative follow-up and management after arterial bypass grafting.

B-mode

A type of imaging used to visualize the structure of blood vessels during an arterial bypass scan.

Color Doppler

A technique that measures blood flow and its direction in vessels.

Spectral Doppler

A method that assesses the velocity of blood flow within a vessel.

Stenosis

Narrowing of a blood vessel that can occur at bypass grafts.

Autogenous vein

A type of bypass graft that uses the patient's own vein, preferred for better long-term patency.

In situ bypass graft

A bypass graft in which the vein remains in its original position.

Orthograde

A technique where valves are lyzed, allowing blood to flow downward in a bypass graft.

Retrograde

A technique involving flipping the vein where valves do not need to be lyzed.

Anastomosis

The surgical connection between two blood vessels.

Aneurysmal dilatation

A pathological enlargement of a segment of a blood vessel.

Myointimal hyperplasia

The thickening of the intimal layer of a vessel often causing stenosis.

Doppler technique

A method involving the use of sound waves to measure blood flow in vessels.

Gray scale

A mode of ultrasound imaging used to view the internal structure of blood vessels.

Peak Systolic Velocity (PSV)

A measurement used to assess blood flow, specifically in relation to stenosis.

Color-flow imaging

An ultrasound method that visualizes blood flow and detects abnormalities.

Arteriovenous fistula

An abnormal connection between an artery and a vein.

Poststenotic turbulence

Disturbed flow observed downstream from a stenosis.

Hematoma

A localized collection of blood outside of blood vessels, often seen post-surgery.

Thrombosis

The formation of a blood clot inside a blood vessel, which can lead to graft failure.

Aliasing

A measurement artifact in Doppler imaging indicating flow disturbance.

Spectral analysis

An evaluation of the frequency and characteristics of blood flow in a vessel using Doppler.