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This is an investigation where a special probe is passed over the vessels of interest. The probe emits high frequency sound waves. These waves are reflected by the vessel wall and by the blood inside. The reflected waves are then picked up by the probe and analysed by the machine. The machine then displays a real time accurate image of the arterial wall and of the blood flow inside. Duplex ultrasonography is a very useful tool in demonstrating the condition of arteries and veins and the characteristics of blood flow. In many occasions, this investigation can substitute angiography.
Unless you are already an inpatient, the majority of these procedures are performed on outpatient bases. You will be asked to present to the Radiology Department at a prearranged time and date. Depending on the area of interest, the examiner will apply a lubricant to the skin and will start scanning the vessels. This may involve applying some pressure which can sometimes cause minor discomfort.
The duration of the procedure varies according to the vessels examined. Being totally none invasive, there are no special precautions to follow after the examination is completed.
There are no known complications related to this examination.
Admission: Day of Procedure Anaesthetic: Not required Stay in hospital: One to two hours Time off work: Two to three hours First follow-up appointment: 2 weeks |
One of the duplex scanning machines in use. The room is usually dimly lit during scanning in order to assist the examiner . |
