Tag Archives: duplex

Vascular Imaging
4
Feb

Overview

Vascular imaging includes ultrasound CT angiography and MR angiography. It evaluates stenosis occlusion aneurysm and malformations. Imaging guides endovascular and surgical interventions.

Carotid Imaging

Carotid ultrasound assesses plaque and stenosis non invasively. CT and MR angiography provide detailed vascular maps. Findings inform stroke prevention strategies.

Peripheral Vascular

CT angiography and MR angiography evaluate peripheral arterial disease. Ultrasound assesses flow and duplex parameters. Imaging guides revascularization and intervention planning.

Aortic Imaging

CT angiography is the standard for aortic aneurysm assessment. MR angiography offers alternatives in selected patients. Imaging monitors aneurysm size and guides timing of repair.

Imaging for Peripheral Arterial Disease
4
Feb

Overview

Imaging evaluates arterial stenosis occlusion and collateral circulation in peripheral arterial disease. Modalities include duplex ultrasound CT angiography and MR angiography. Imaging guides revascularization planning and surveillance.

Duplex Ultrasound

Duplex assesses flow velocity and plaque morphology in peripheral arteries. It is widely available and useful for initial evaluation. Operator expertise and standardized protocols improve diagnostic accuracy.

CT and MR Angiography

CT angiography provides high resolution vascular maps for procedural planning. MR angiography offers alternatives without ionizing radiation in selected patients. Contrast timing and artifact management are important for image quality.

Invasive Angiography

Digital subtraction angiography remains the gold standard for intervention and detailed vascular mapping. It enables simultaneous diagnostic assessment and endovascular therapy. Imaging guides selection of stents balloons and adjunctive devices.

Peripheral Vascular System
4
Feb

Overview

Peripheral vascular system supplies limbs and organs with oxygenated blood and returns deoxygenated blood to the heart. Arterial and venous networks include major named vessels and collateral pathways. Vascular integrity and flow determine tissue viability and function.

Arterial Anatomy

Major peripheral arteries include the aorta iliac femoral popliteal tibial and pedal vessels. Arterial disease such as atherosclerosis causes stenosis and ischemia. Imaging with ultrasound CT angiography and MR angiography maps lesions for intervention.

Venous Anatomy

Peripheral veins include deep and superficial systems with valves to prevent reflux. Venous thrombosis and insufficiency lead to swelling pain and ulceration. Duplex ultrasound is the primary modality for venous assessment.

Clinical Relevance

Peripheral arterial disease and venous thromboembolism are common and morbid conditions. Revascularization endovascular therapy and anticoagulation are key treatments. Early diagnosis and risk factor control reduce complications.