Colour Doppler Scan
Colour Doppler or Doppler Ultrasound is a non-invasive test procedure that uses high-frequency sound waves to measure the blood flow through the arteries and veins.Doppler ultrasound enables to determine the speed of blood flow within a vessel by measuring the rate of change in its frequency and by colour coding the information.
Diagnosis from Colour Doppler
Colour Doppler is used to determine the following medical conditions:
- To detect Deep Vein Thrombosis(DVT) – a condition where blood clots form in the leg veins, which further could block the blood flow to the lungs.It can be very life-threatening.
- Arterial Occlusion ( blocked artery)
- Aneurysms( bulging artery)
- Blood flow problems with liver, kidneys, pancreas, or spleen
- Unusual growths in your belly, such as tumours.
- Narrowing of large arteries in the neck leading to the reduction in the blood flow
- Clothes: Loose fitting and comfortable clothes with no metal fasteners( zippers, snaps).
- Jewellery and other metal accessories to be removed before the scan to avoid interference with the image result.
- Diet: Depending on the region where Doppler Ultrasound is performed, the diet restriction would vary
a) For Stomach Ultrasound: Food or liquid should not be consumed 6 to 12 before the scan.
b) For Pelvic Ultrasound: Nearly 1(one) Litre of water should be consumed 1(one) hour, so the bladder is full for the scan.
c) For Leg Ultrasound: No diet restriction for this test.