Dopplerography ntawm cov hlab ntsha yog ib txoj kev tshawb nrhiav tam sim no uas tso cai rau kev kawm txog lub xeev ntawm lub vas sab hauv los ntawm kev siv ultrasound. Lwm cov npe ntawm hom no yog duplex luam ntawm cov hlab ntsha, ultrasound ntawm cov hlab ntsha.
Dopplerography muab cov ntaub ntawv qhia txog cov qauv ntawm cov hlab ntsha thiab seb cov ntshav txav ntawm lawv li cas. Qhov no ua rau nws pom tau tias muaj kab mob ntau yam nyob hauv cov theem thaum ntxov, tiv thaiv kev loj hlob ntawm kev mob loj heev. Ntxiv rau qhov kev kuaj mob, txoj kev no yog siv los xaiv hom kev kho mob thiab ntsuam xyuas nws cov txiaj ntsig.
Cov txheej txheem yog nqa tawm nrog kev pab los ntawm ultrasound rays, uas yog siv nyob rau hauv lub niaj zaus ultrasound ntawm ntau yam plab hnyuv siab raum. Txawm li cas los xij, qhov no yog qhov tshwj xeeb sensor siv los ua emits thiab tau txais ultrasonic tsis, ua haujlwm ntawm txoj cai ntawm Doppler effect. Nyob rau hauv qhov no, cov txheej txheem yog kev nyab xeeb kiag thiab tsis mob thiab yuav ua tau dua yog tias tsim nyog.
Hom thiab cov cim qhia ntawm dopplerography ntawm cov hlab ntsha
Txoj kev tshawb no, raws li txoj cai, raug xaiv tsa raws li tus neeg mob cov kev tsis txaus siab thiab qhov kev mob ntawm tus kab mob, uas tso cai rau ib tus neeg txhawj xeeb ntawm cov kab mob vascular. Thaum lub sij hawm tus txheej txheem, nyob ntawm seb ntawm qhov chaw ntawm cov hlab ntsha, cov sensors nrog ultrasound frequencies siv. Xav seb puas muaj cov tsos mob tshwm sim rau ntau hom kev dopplerography.
1. Dopplerography ntawm cov hlab ntsha ntawm lub caj dab thiab taub hau:
- mob taub hau, kiv taub hau;
- tsis nco qab;
- nco tsis tau;
- pw tsaug zog mob;
- ntshav siab hloov;
- suab nrov hauv pob ntseg;
- "Yoov" ua ntej qhov muag , thiab lwm yam.
2. Ultrasonic dopplerography ntawm cov hlab ntsha ntawm qis thiab sab qaum pob ntseg:
- chilliness ntawm txhais tes, taw;
- o ntawm tes, taw;
- convulsions, loog loog ntawm txoj kev nqua;
- mob thaum taug kev;
- poob ntawm cov leeg mob hauv tes;
- hloov nyob rau hauv daim tawv nqaij xim ntawm extremities, thiab lwm yam.
3. Dopplerography ntawm cov hlab ntsha:
- mob hauv thaj chaw lumbar;
- ntshav siab hloov;
- qhov txawv ntawm qhov loj ntawm sab laug thiab txoj cai ob lub raum;
- polyuria thiab lwm tus.
Transcranial dopplerography ntawm cerebral vessels
Transcranial dopplerography ntawm cerebral hlab ntsha yog ua nrog rau lub hom phiaj ntawm kev pom qhov chaw mob ntawm intracranial hlab ntsha thiab ntau yam kev mob ntawm cov ntshav khiav hauv lawv. Cov txheej txheem no yog ua tiav, feem ntau, nrog:
- migraines;
- cov vas sab hauv plab hlaub ;
- craniocerebral kev tuag;
- myocardial infarction;
- mob hlab ntsha tawg thiab lwm tus.
Yog xav kawm cov ntshav khiav hauv cov hlab ntsha cerebral siv qee thaj chaw, hu ua ultrasound windows. Hauv cov cheeb tsam no, cov pob txha ntawm pob txha taub hau yog thinner, los yog lawv muaj qhov chaw qhib.
Deciphering cov ntsiab ntawm dopplerography
Nrog kev pab los ntawm dopplerography, ib tus kws kho mob soj ntsuam cov phab ntsa ntawm lub nkoj, cov ntaub so ntswg, kev coj thiab kev ceev ntawm cov ntshav khiav, muaj cov formations uas ua rau cov ntshav khiav tsis zoo (plaques, thrombi). Ntxiv rau, qhov chaw thiab khoov ntawm cov hlab ntsha tuaj kuaj, thiab cov khoom tau tshwm sim raug muab piv nrog cov neeg sawv cev.
Cov ntsiab lus nram qab no ntawm cov ntshav khiav tau raug soj ntsuam:
- tshaj tawm ntawm cov ntshav khiav;
- systolic-diastolic ratio - qhov piv ntawm qhov siab tshaj plaws (thaum lub caij systole) thiab qhov tsawg kawg nkaus (thaum lub sijhawm diastole) ntshav khiav tshaj tawm;
- pulsation index - qhov sib txawv ntawm qhov sib txawv ntawm qhov siab tshaj thiab yam tsawg kawg nkaus ntawm cov ntshav khiav mus rau qhov nruab nrab tshaj tawm hauv lub nkoj;
- qhov kev ua haujlwm tsis muaj zog yog qhov sib piv ntawm qhov txawv ntawm systolic thiab diastolic velocities thiab systolic tshaj tawm;
- lub cheeb ntawm lub nkoj.
Qhov xwm txheej ntawm txoj kev yog nyob ntawm qhov kev tsim nyog ntawm tus kws kho mob uas ua tus txheej txheem. Nws tseem ceeb heev kom npaj rau txoj kev tshawb no. Yog li, cov neeg mob tsis pom zoo noj tshuaj, haus tshuaj yej lossis kas fes hnub ntawm kev kuaj mob, haus luam yeeb rau 2 lossis tsawg teev ua ntej txoj kev ua haujlwm. Ua ntej qhov kev kuaj mob ntawm lub raum, yuav tsum tau noj zaub mov tshwj xeeb.