In the presence of varicose veins, obstruction or damage to the deep veins, an ultrasound scan of the leg is used to identify the blockages or backward flow of blood before medical treatment. Information for doctors Duplex scanning with colour flow imaging can detect the presence and anatomic extent of obstruction and ...

Replacing, or grafting of arteries is a surgical treatment for arterial disease. Grafts need to be monitored to identify any potential failures as a result of narrowing (stenosis). Information for doctors Patients with infrainguinal bypass grafts should have routine duplex scanning at six weeks, three weeks and six months and then six ...

You may be referred for this scan by a doctor if they suspect a blood clot in the vein. Information for doctors Duplex scanning with colour flow imaging provides instant visualisation of the veins and blood flow. It can detect the presence of both recent and old thrombi. In symptomatic patients the ...

This scan checks the lower legs for general arterial health including the build up of plaques or thickening of the arterial wall, for people who have been identified as having generalised arterial problems. Information for doctors Duplex scanning provides images of the arterial tree and blood velocities from the aorta to ...

Already mentioned under the AAA scan, this ultrasound scan identifies and monitors aneurysms which can form in any section of the aorta, most commonly in the belly area, an Abdominal Aortic Aneurysm (AAA). If you have already been diagnosed with an aneurysm this scan can be used to monitor its ...