title: Spectral analysis of Doppler ultrasonic flow signals by a personal computer.
abstract: This paper describes a method of performing spectral analysis on Doppler acoustical signals from peripheral blood vessels with the use of an Apple II plus personal computer. Digitization is accomplished with a commercially available analog-to-digital converter. The data are transformed with a fast Fourier technique, and the resultant information is plotted by an inexpensive X-Y plotter and/or on a television receiver.
mesh_terms: D001808:Blood Vessels / Q000502:physiology*; D003201:Computers; D006801:Humans; D008838:Microcomputers; D012039:Regional Blood Flow; D014465:Ultrasonics