We use ultrasound for diagnostic purposes in a variety of different situations. Ultrasound, or sonography, can be used in emergencies, for example, to establish an initial diagnosis quickly. This technology is also used for on-going monitoring and as a general investigative method, for example in the abdomen.
Various parts of the body and organs can be easily and effectively imaged using ultrasonic waves. The scan produces two-dimensional images that give us an idea of the shape, arrangement and size of the structures being investigated inside the body and which clearly illustrate any changes caused by disease.
Ultrasound uses the colour-coded imaging of blood vessels to deliver precise information about the direction and speed of blood flow. Duplex ultrasound is regarded as the pioneering technology for the diagnosis of perfusion problems and for characterising a tumour based on its vascular pattern and perfusion.
This procedure is also used to investigate the heart and aorta, to image veins and arteries, for renal imaging and in obstetrics.