Doppler ultrasound yog cov txheej txheem ua haujlwm siv ntau yam uas siv tau ntau yam hauv kev niaj hnub. Txawm hais tias nws tau siv thoob plaws, ntau tus neeg tsis paub txog dab tsi nws yog, yuav ua li cas los ntawm cov qauv txheem, nws ntau hom, thiab nws cov ntawv thov hla kev mob kho mob sib txawv. Kab lus no ua kom nkag siab ntawm Doppler ultrasound, npog nws cov ntsiab cai, hom, siv, thiab qhov tseem ceeb hauv kev kuaj mob.

Doppler ultrasound?

Doppler ultrasound yog qhov kev xav tsis sib xws uas ua haujlwm ntau zaus ua suab nrov kom pom thiab ntsuas cov ntshav hauv cov hlab ntsha. Tsis zoo li ib txwm muaj ultrasound, uas feem ntau tsim cov duab ntawm sab hauv cov ntshav, pab ntsuas cov ntshav, pab ntsuas cov nuj nqi thiab kev noj qab haus huv ntawm cov hlab ntshav.

DOPPLER CHAVE UA HAUJ LWM?

Cov txheej txheem yog raws li cov nyhuv doppler, ib qho tshwm sim ntawm lub npe, ib qho tshwm sim npe hu ua tom qab Jortrian Doyicist Christian Doppler. Cov txiaj ntsig doppler yog hais txog qhov hloov pauv hauv zaus lossis nthwv dej ntawm cov suab tsis raws li lawv xav txog cov khoom txav. Hauv doppler ultrasound, suab vuag emritted tawm los ntawm transducer (tuav cov tawv nqaij) thaws ntws tawm cov ntshav hauv cov hlab ntshav. Qhov zaus hloov ntawm lub suab tawm thiab tau txais suab nrov nrov yog ntsuas ntsuas thiab siv los txiav txim siab nrawm thiab kev taw qhia txog cov ntshav khiav.

Qhov sib txawv ntawm doppler ultrasound thiab txheem ultrasound

TXHEEM QAUV

• Kev tsom xam cov qauv: Tus qauv ultrasound, tseem hu ua B-hom lossis hom ci ci, tsom rau kev tsim cov duab ob sab hauv thiab cov ntaub so ntswg. Nws yog dav siv rau pom cov qauv ntawm cov plab hnyuv siab raum, cov leeg nqaij, thiab cov me nyuam hauv plab thaum cev xeeb tub.

• Suab Yeem Tswv Yexus: Nws ua haujlwm los ntawm emitting suab nrov uas tau muab txhais ua cov duab sab hauv raws li kev siv thiab sijhawm ntawm lub echhoes.

• Doppler Ultrasound

• Ua kom pom tseeb: Doppler ultrasound, hauv kev sib piv, yog tsim tshwj xeeb los ntsuas qhov kev txav ntawm cov hlab ntshav los ntawm cov hlab. Nws muab cov ntaub ntawv ntsig txog qhov nrawm thiab kev coj ntawm cov ntshav khiav, uas yog qhov tseem ceeb rau kev ntsuas cov kev noj qab haus huv vascular.

• Kev hloov pauv hloov: Cov txheej txheem ntawm kev kuaj xyuas cov kev hloov pauv ntawm cov suab tsis yog raws li lawv tau kev tshuaj xyuas cov ntshav ntawm cov ntshav ntws.

Hom Doppler Ultrasound

Muaj ntau hom doppler ultrasound, txhua tus pabcuam tshwj xeeb lub hom phiaj:

• Xim Doppler Ultrasound: Xim DOPPLER siv cov xim coding los sawv cev rau kev ceev thiab kev taw qhia txog cov hlab ntsha. Cov xim sib txawv (feem ntau liab thiab xiav) qhia cov kev taw qhia ntawm kev plam kev txheeb ze rau lub transducer.

      Daim Ntawv Thov: Hom no tau siv dav siv rau kev pom cov ntshav ntws hauv cov hlab ntsha thiab cov leeg ntshav, txheeb xyuas cov xwm txheej, thiab ntsuas cov xwm txheej ntawm lub plawv li qub.

• Hwj chim Doppler Ultrasound: Fais Doppler yog rhiab dua li cov xim doppler thiab tuaj yeem kuaj xyuas cov ntshav nrawm. Nws qhia txog lub zog (amplitude) ntawm doppler cim tsis muaj kev taw qhia, muab cov duab ntxaws ntxaws ntxiv ntawm cov ntshav ntws.

      Daim Ntawv Thov: Fiber Doppler yog siv tau tshwj xeeb rau kev pom cov ntshav ntws hauv cov ntshav me me, xws li lub raum qeeb qeeb, xws li lub raum thiab mob siab.

• Spectral doppler ultrasound: spectral dopplays nthuav tawm cov ntshav txaus raws li cov kab rov qab sawv cev thiab txoj kab rov qab sawv cev. Qhov no tso cai rau kev ntsuas ncaj qha ntawm cov ntshav ntws.

      Daim Ntawv Thov: Nws feem ntau siv los ntsuas cov ntshav ntws thiab los ntsuas cov hlab ntsha loj thiab suav nrog lub plawv dhia kev thiab lub plawv kev siv hluav taws xob.

• Nruam yoj doppler ultrasound: Nruam Nto Ntog Doppler tsis tu ncua emits thiab tau txais kev ntsuas ntawm cov ntshav siab-nrawm txaus. Nws tsis muab ib daim duab tab sis tsim hluav taws xob vectrictforms los soj ntsuam cov ntshav txaus.

      Daim Ntawv Thov: Hom no zoo tagnrho rau kev ntsuas ntshav siab, xws li cov neeg pom ntawm cov hlab ntsha senenosis (nqaim ntawm cov hlab ntshav).

• Duplex ultrasound: Duplex ultrasound ua ke nrog doppler chartrasound, muab ob qho duab anatomical thiab cov ntshav ntws hauv ib qho kev kuaj mob.

      Daim Ntawv Thov: Nws yog qhov sib zog ntsuas xws li kev sib sib zog nqus nkhaus

Cov ntawv thov ntawm doppler ultrasound

Doppler ultrasound yog siv thoob plaws kev kho mob tshwj xeeb vim nws lub peev xwm los muab cov ntaub ntawv tseem ceeb txog cov ntshav thiab vascular kev noj qab haus huv. Nov yog qee cov ntawv thov tseem ceeb:

• Cardiology

• Lub plawv ua haujlwm: Doppler ultrasound ntsuam xyuas lub plawv ua haujlwm los ntsuas ntshav ntws los ntawm lub plawv thiab li qub. Nws pab txheeb xyuas lub plawv lub plawv stenosis, regurgitation, thiab lub plawv tsis ua hauj lwm.

• Congenital lub plawv tsis xws luag: Nws yog qhov tseem ceeb rau kev kuaj mob lub plawv congenosing hauv cov menyuam mos thiab menyuam yaus, cia rau kev cuam tshuam rau kev cuam tshuam thiab kev kho mob.

• Vascular tshuaj

• Peripheral ntshav mob: doppler ultrasound ntsuas cov ntshav ntws hauv cov kab mob caj ceg

• Carotid Ntshav Ntshav Kab Mob: nws tshuaj xyuas cov kab mob carbon hauv lub caj dab, uas muab cov ntshav tawm rau lub hlwb. Qhov no yog qhov tseem ceeb rau kev txheeb xyuas cov kev cuam tshuam uas tuaj yeem ua rau muaj kev khoo.

• Cov Nkawv thiab Gynecology

• Fetal saib xyuas: Doppler ultrasound saib ntshav ntws hauv cov hlab ntsha thiab lwm cov tub rog plab, ua kom lub plab tau txais cov ntshav txaus thiab oxygen thaum cev xeeb tub.

• Kev ua haujlwm placental: nws ntsuas cov ntshav ntws los kuaj cov mob xws li kev ua haujlwm ua ntej thiab kev txwv kev loj hlob ntawm kev mob siab (IUGR).

• Luam radiology

• Mob siab thiab mob raum cov kab mob: doppler ultrasound ntsuas cov ntshav ntws mus rau lub siab thiab mob hlwb, thiab ntshav ntshav tawg, thiab ntshav ntshav plab me me.

• Kev Ntsuam Xyuas Qum: Nws pab sib txawv ntawm buign thiab malignant hlav los ntawm kev ntsuas cov ntshav ntws hauv thiab ib ncig ntawm cov hlav.

• Neurology

• Kev ntsuas cov ntshav ultrasound ua rau cov kab mob Vasospasboid zoo li cov kab mob ntawm Vasospasage thiab lwm yam kev cuam tshuam ntawm cov kab mob cerarhacular.

Qhov zoo thiab txwv ntawm doppler ultrasound

• Qhov Zoo

• Tsis muaj qhov tsis zoo thiab muaj kev nyab xeeb: doppler ultrasound yog cov txheej txheem tsis muaj kev nyab xeeb, ua rau nws muaj kev nyab xeeb rau kev siv rov qab rau ionizing hluav taws xob.

• Qhov tseeb-lub sij hawm kev yees duab: nws muab cov duab tiag tiag thiab ua haujlwm, pub rau kev ntsuas sai thiab kuaj pom sai.

• Tus nqi-siv tau: piv rau lwm cov qauv kev xav zoo li MRI lossis CT, DOPPLER ultrasound yog cov nqi ntau dua thiab muaj ntau.

• Versilility: Doppler ultrasound yog siv rau ntau yam ntawm lub cev thiab ntau yam ntawm kev kho mob.

• Kev txwv

• Tus neeg teb xov tooj nyob ntawm: qhov tseeb thiab zoo ntawm doppler ultrasound tseem ceeb rau tus neeg teb xov tooj kev txawj thiab kev paub.

• Txwv tsis pub nkag mus: Nws yuav muaj teeb meem daws cov qauv sib sib zog nqus cov qauv lossis cov tsis pom los ntawm pob txha lossis huab cua.

• Tus Neeg Mob Tej Yam: Tus neeg dag zog txav, rog, thiab lwm yam khoom tuaj yeem cuam tshuam qhov zoo ntawm cov duab thiab kev ntsuas.

• Cov txhais lus nyuaj: Kev txhais lus ntawm cov cim doppler yuav tsum muaj kev cob qhia tshwj xeeb thiab kev paub, raws li nws cuam tshuam nrog kev ntsuas cov kev nruam thiab cov qauv txaus.

Cov Lus Qhia Yav Tom Ntej Hauv Doppler Ultrasound

Kev nce qib hauv thev naus laus zis txuas ntxiv txhim kho cov peev xwm thiab cov ntawv thov doppler ultrasound:

Peb-seem Doppler Kev Ntsuas: Qhov nthuav tawm 3D doppler kev xav tau cov ntshav ntws thiab vascular qauv, txhim kho kev kho mob raug.

Kev ntsuas kev cia siab: Kev kawm nce qib hauv software thiab kev txawj ntse yog coj los siv rau kev saib xyuas cov npe doppler, txo cov neeg teb xov tooj cia siab.

Portable doppler cov khoom siv: kev loj hlob ntawm portable thiab fandheld doppller cov khoom siv tau ua kom yooj yim rau kev kuaj xyuas cov txaj thiab qhov tshwj xeeb hauv thaj chaw deb thiab tsis muaj chaw nyob.

DoPpler ultrasound yog qhov cuab yeej tseem ceeb hauv cov tshuaj, muab cov ncauj lus qhia ntxaws ntxaws rau hauv cov ntshav ntws thiab vascular kev noj qab haus huv uas tsis tuaj yeem muab tau. Nws ntau hom, muaj hwj chim, spectral, txuas ntxiv yoj, thiab deplpler tshwj xeeb thoob plaws ntau yam kev khomob. Thaum nws muaj qee qhov kev txwv, qhov zoo ntawm doppler ultrasound, xws li tsis muaj kev tsis muaj txiaj ntsig, ua kom nws muaj txiaj ntsig zoo, ua rau nws tsis tseem ceeb ntawm kev kho mob. Nkag siab doppler ultrasound cov hauv paus ntsiab lus, kev siv, thiab cov kev pab, thiab yav tom ntej lub luag haujlwm pab kom nws txoj haujlwm tseem ceeb hauv kev txhim kho cov neeg mob tu thiab ua tau txiaj ntsig.