One embodiment provides a data compression apparatus for compressing Doppler data including a plurality of types of measurement data obtained by ultrasound measurement, the apparatus including: a first compression unit configured to compress first measurement data according to a first compression parameter to thereby generate first compressed data a second compression unit configured to compress second measurement data according to a second compression parameter different from the first compression parameter to thereby generate second compressed data and a combining unit configured to combine the first compressed data and the second compressed data.
