Doppler Imaging yog dab tsi?

Ultrasound Doppler imaging yog lub peev xwm los ntsuas thiab ntsuas cov ntshav ntws hauv ntau cov hlab ntsha, cov hlab ntsha, thiab cov hlab ntsha. Feem ntau sawv cev los ntawm cov duab txav ntawm lub vijtsam ultrasound system, feem ntau tuaj yeem txheeb xyuas qhov kev kuaj Doppler los ntawm cov ntshav xim uas pom ntawm daim duab ultrasound. Doppler tuaj yeem txhais cov xim hauv daim duab raws li kev ntsuas cov ntshav ntws hauv thaj chaw tshwj xeeb uas tau teeb tsa.

Doppler imaging txawv ntawm ib txwm siv ultrasound imaging nyob rau hauv ib qho tseem ceeb txoj kev: nws tsis ua duab ib tug qauv. Ib txwm siv ultrasound muab cov duab ntawm ntau yam qauv, lub cev, thiab cov leeg los kuaj xyuas kev loj hlob, tawg, teeb meem ntawm cov qauv, thiab ntau lwm yam muaj peev xwm. Doppler imaging, ntawm qhov tod tes, project tsuas yog cov duab ntawm cov ntshav ntws.

Ultrasound Doppler imaging yog ib qho kev lees paub thoob ntiaj teb thiab muaj kev hwm zoo heev vim nws tsis muaj kev cuam tshuam thiab tsis muaj hluav taws xob. Doppler tsis siv hluav taws xob lossis cov yam ntxwv cuam tshuam, tab sis ua haujlwm zoo ib yam li lwm yam khoom siv ultrasound; siv cov suab nrov nrov uas cuam tshuam thiab hloov mus rau hauv cov xim, duab, thiab ntau yam kev txav.

Kev Pabcuam ntawm Doppler Imaging:

Doppler imaging txawv ntawm ib txwm siv ultrasound imaging nyob rau hauv ib qho tseem ceeb txoj kev: nws tsis ua duab ib tug qauv. Ib txwm siv ultrasound muab cov duab ntawm ntau yam qauv, lub cev, thiab cov leeg los kuaj xyuas kev loj hlob, tawg, teeb meem ntawm cov qauv, thiab ntau lwm yam muaj peev xwm.

Doppler imaging, ntawm qhov tod tes, yog siv los txheeb xyuas cov ntshav ntws thiab ntau yam kev phom sij uas yuav tshwm sim hauv cov hlab ntsha, cov hlab ntsha, thiab cov hlab ntsha. Doppler imaging feem ntau yog siv los txheeb xyuas cov ntshav txhaws, txheeb xyuas cov haujlwm tsis zoo hauv cov hlab ntsha, txiav txim siab seb cov hlab ntsha puas raug thaiv, lossis txheeb xyuas cov ntshav ncig thoob plaws hauv lub cev. Tag nrho cov kev hem thawj rau kev noj qab haus huv thiab lub neej tuaj yeem pom thiab tiv thaiv nrog Doppler imaging.

Tib neeg siv Doppler imaging rau ntau daim ntawv thov: Piv txwv li, cardiac Doppler, uas kuaj cov ntshav ntws mus thiab los ntawm lub plawv, yog ib qho tseem ceeb thiab tseem ceeb heev ntawm kev kuaj mob plawv.

Lwm cov ntawv thov Doppler nrov muaj xws li transcranial Doppler (txog cov ntshav ntws los ntawm lub hlwb thiab lub taub hau), vascular Doppler, thiab dav dav venous thiab arterial Doppler.