Chromaticity-coded Doppler blood velocity sonagrams: preliminary observations.
This paper describes the application of chromaticity to spectrally analysed Doppler blood velocity signals. Chromaticity enables a particular colour to be assigned to the power/frequency distribution within each instantaneous spectral sweep of a sonagram. Successive spectral sweeps of a sonagram can then be colour-coded in this fashion to produce a chromaticity-coded sonagram. Two chromaticity-coded sonagrams are presented to illustrate various blood flow features. Standard sonagram display formats are also presented for comparison purposes. It appears that the chromaticity-coded sonagram offers the ability to digitally encode the instantaneous power spectral distribution with a single chromaticity vector.
Kontis
S
S
Department of Radiological Sciences, Guy's Hospital, London, U.K.
Padayachee
T S
TS
Gosling
R G
RG
D001783:Blood Flow Velocity; D003116:Color; D006801:Humans; D013057:Spectrum Analysis; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods