NCIt definition : A procedure that uses sound waves to measure characteristics of disturbed bood flow,
such as direction, velocity and turbulence. This enables the examiner to differentiate
between normal and abnormal flow patterns and, in some cases, to quantitate those
characteristics that are helpful in determining the severity of abnormal flow states.;
Alternative definition : CDISC: A type of echocardiography that uses sound waves applying the Doppler effect
to measure characteristics of blood flow, such as direction, velocity, speed, and
turbulence.;