Umbala we-Doppler VS Power Doppler

 

Iyini i-Color Doppler?

 

Lolu hlobo lwe-Doppler lushintsha amaza omsindo abe imibala ehlukene ukuze aboniswe ukuze abonise isivinini nesiqondiso sokugeleza kwegazi ngesikhathi sangempela.

Ingasetshenziselwa ukulinganisa ukugeleza kwegazi emithanjeni yakho yegazi ngokuqhumisa amaza omsindo wemvamisa ephezulu (i-ultrasound) emangqamuzaneni egazi abomvu ajikelezayo.I-ultrasound evamile isebenzisa amaza omsindo ukukhiqiza izithombe, kodwa ayikwazi ukubonisa ukugeleza kwegazi.

Iyini i-Power Doppler?

I-Power Doppler isuselwe ekutholeni amasiginali wokugeleza kwegazi okunensayo, isusa isignali yokushintsha imvamisa, futhi isebenzisa isignali ye-amplitude eyakhiwe amandla ahlakazekile amangqamuzana egazi abomvu ukuze abonise ukusatshalaliswa kwemithambo yegazi emincane ngokuzwela kakhulu.

Uyini Umehluko phakathi kwe-Colour Doppler ne-Power Doppler?

I-Colour Doppler iguqula izilinganiso zokugeleza kwegazi zibe uxhaxha lwemibala ukusiza ukukhombisa isivinini nesiqondiso sokugeleza kwegazi emkhunjini.

I-Power Doppler izwela kakhulu kune-Doppler yombala ekutholeni ukugeleza kwegazi, nakuba inganikezi ulwazi mayelana nesiqondiso sokugeleza kwegazi.

 

I-Dawei High-end color ultrasonica imishini yokuxilonga,I-DW-T8, hhayi kuphela ukuba ne-Power Doppler Imaging (PDI), kodwa i-Directional Power Doppler Imaging (DPDI).