Annex A > Chapter 3 - Developments in the UK, in the Diagnosis and Treatment of Congenital Heart Abnormalities in Children, 1984-1995 > Diagnosis and initial assessment > Doppler echocardiography
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Doppler echocardiography
17 During the mid-1980s, an ultrasound `Doppler' technique became available which enabled cardiologists to measure the velocity of blood flow within blood vessels. From these measurements it became possible to calculate pressures in certain chambers of the heart which previously could only be derived from direct measurements using cardiac catheterisation (see para 20).
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