Doppler Imaging yog dab tsi?

Kev siv Ultrasound Doppler imaging yog lub peev xwm los ntsuas thiab ntsuas cov ntshav ntws hauv ntau yam leeg, cov hlab ntsha, thiab cov hlab ntsha. Feem ntau yog ib daim duab txav mus los ntawm lub vijtsam ultrasound system, ib tus neeg feem ntau tuaj yeem txheeb xyuas qhov kev xeem Doppler los ntawm cov ntshav ntws 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 raug thaij duab.

Kev siv Doppler imaging txawv ntawm kev siv ultrasound imaging ib txwm muaj ib txoj hauv kev tseem ceeb: nws tsis tau thaij duab rau ib qho qauv twg. Kev siv ultrasound ib txwm muab cov duab ntawm ntau yam qauv, cov kabmob, thiab cov leeg ntshav los kuaj xyuas cov qog nqaij hlav, cov pob tawg, cov teeb meem ntawm cov qauv, thiab ntau lwm yam mob. Kev siv Doppler imaging, ntawm qhov tod tes, tsuas yog tso saib cov ntshav ntws xwb.

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

Cov kev pabcuam ntawm Doppler Imaging:

Kev thaij duab Doppler txawv ntawm kev thaij duab ultrasound ib txwm muaj ib txoj hauv kev tseem ceeb: nws tsis thaij duab rau ib qho qauv twg. Kev thaij duab ultrasound ib txwm muab cov duab ntawm ntau yam qauv, cov kabmob, thiab cov leeg ntshav los kuaj xyuas cov qog nqaij hlav, cov pob tawg, cov teeb meem ntawm cov qauv, thiab ntau lwm yam mob.

Ntawm qhov tod tes, Doppler imaging yog siv los ntes cov ntshav ntws thiab ntau yam kev phom sij uas yuav tshwm sim hauv cov leeg ntshav, cov hlab ntsha, thiab cov hlab ntsha. Doppler imaging feem ntau yog siv los ntes cov ntshav txhaws, txheeb xyuas cov qhov dej tsis ua haujlwm zoo hauv cov leeg ntshav, txiav txim siab seb cov hlab ntsha puas raug thaiv, lossis txheeb xyuas cov ntshav ncig tsis zoo thoob plaws lub cev. Tag nrho cov kev hem thawj rau kev noj qab haus huv thiab lub neej no tuaj yeem pom thiab tiv thaiv nrog Doppler imaging.

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

Lwm cov ntawv thov Doppler nrov suav nrog transcranial Doppler (taug qab cov ntshav ntws los ntawm lub hlwb thiab lub taub hau), vascular Doppler, thiab dav dav venous thiab arterial Doppler.