Xim Doppler VS Fais Fab Doppler

 

Xim Doppler yog dab tsi?

 

Hom Doppler no hloov suab nthwv dej rau hauv cov xim sib txawv rau kev nthuav qhia kom pom kev nrawm thiab kev coj ntawm cov ntshav ntws hauv lub sijhawm.

Nws tuaj yeem siv los kwv yees cov ntshav ntws los ntawm koj cov hlab ntsha los ntawm bouncing high-frequency sound waves (ultrasound) tawm ntawm cov qe ntshav liab.Lub ultrasound tsis tu ncua siv lub suab tsis tsim cov duab, tab sis tsis tuaj yeem pom cov ntshav ntws.

Lub zog Doppler yog dab tsi?

Lub zog Doppler yog ua raws li kev tshawb pom ntawm cov ntshav ntws qeeb, tshem tawm cov cim hloov pauv zaus, thiab siv cov teeb liab amplitude tsim los ntawm lub zog tawg ntawm cov qe ntshav liab los ua kom pom kev faib cov hlab ntsha me me dua.

Qhov txawv ntawm Xim Doppler thiab Power Doppler yog dab tsi?

Xim Doppler hloov cov kev ntsuas ntshav mus rau hauv cov xim sib txawv los pab qhia qhov ceev thiab kev coj ntawm cov ntshav ntws los ntawm lub nkoj.

Lub zog Doppler tseem muaj kev nkag siab ntau dua li xim Doppler hauv kev kuaj ntshav, txawm hais tias nws tsis muab cov ntaub ntawv hais txog cov ntshav khiav.

 

Dawei High-end xim ultrasonica kuaj apparatus,DW-T8, tsis tsuas yog muaj Power Doppler Imaging (PDI), tab sis Directional Power Doppler Imaging (DPDI).