Doppler Xim Ultrasound: Cia Tus Kab Mob tsis muaj qhov chaw nkaum

Cardiac Doppler ultrasound yog ib txoj hauv kev zoo heev rau kev kuaj mob ntawm cov kab mob plawv, tshwj xeeb tshaj yog kab mob hauv lub plawv. Txij li thaum xyoo 1980s, ultrasound diagnostic thev naus laus zis tau pib tsim ntawm qhov nrawm nrawm. Zoo li magnetic resonance imaging, CT thiab isotope scanning, cardiac Doppler ultrasound kuj muaj qhov chaw nyob rau hauv plaub lub loj imaging diagnostic technologies nyob rau hauv niaj hnub tshuaj.
Cardiac Doppler ultrasound yog ib qho tseem ceeb tshaj plaws ntawm kev tshuaj ntsuam xyuas thev naus laus zis hauv kev kuaj mob plawv uas tsis muaj kev cuam tshuam. Qhov kev ntsuam xyuas thev naus laus zis no tsis yog tsuas yog muaj qhov zoo ntawm qhov tsis mob, rov ua dua, tsis muaj mob thiab yooj yim, tab sis kuj muaj cov txiaj ntsig kev kuaj pom tseeb dua thiab muaj tseeb dua li lwm yam kev kuaj pom. Tom qab ob peb xyoos ntawm kev nce qib, cardiac Doppler ultrasound tau dhau los ua cov cuab yeej kuaj mob tseem ceeb hauv cov tshuaj kho mob niaj hnub.
Feem ntau hais lus, yog tias qhov kev kuaj pom tsuas yog qhov tsis txaus, tsis tas yuav muaj kev kho tshwj xeeb. Yog tias nws mob plawv tsis ua hauj lwm los yog mob hnyav, kev kho mob yuav tsum tau ua kom sai li sai tau txhawm rau tiv thaiv kev hloov pauv ntawm tus neeg mob lub plawv thiab qhov ua rau muaj teeb meem loj. Hauv kev kuaj mob cardiomyopathy, lub plawv Doppler ultrasound tuaj yeem txiav txim siab qib ntawm myocardial hypertrophy thiab cardiac chamber o hauv cov neeg mob; rau cov neeg mob uas muaj kab mob plawv, plawv Doppler ultrasound tuaj yeem ua rau pom qhov chaw ntawm myocardial ischemia, pab cov kws kho mob los tsim cov kev kho mob tsim nyog raws li cov xwm txheej tshwj xeeb ntawm cov neeg mob. Cov kab mob tseem ceeb uas kuaj pom los ntawm lub plawv Doppler ultrasound suav nrog aortic lesions (xws li cov kab mob xws li aortic stenosis), kab mob plawv (xws li mitral valve lesions, stenosis, thiab lwm yam), kab mob ventricular, thiab lwm yam.
Cardiac Doppler ultrasound tsis tuaj yeem tsuas yog qhia txog kev faib cov ntshav khiav hauv lub plawv, tab sis kuj qhia txog txoj hauv kev thiab kev taw qhia ntawm cov ntshav plawv mus rau qee yam. Nws tuaj yeem txiav txim siab seb qhov xwm txheej ntawm cov ntshav siab yog laminar flow, turbulent flow lossis eddy flow, thiab tseem tuaj yeem ntsuas qhov contour, cheeb tsam, qhov ntev thiab qhov dav ntawm cov hlab ntshav. Cardiac Doppler ultrasound tuaj yeem cuam tshuam ncaj qha rau kev sib raug zoo ntawm cov qauv plawv txawv txav thiab cov hlab plawv hemodynamics txawv txav los ntawm kev nthuav tawm cov ntaub ntawv ntawm cov ntshav ntws hauv daim duab duab ob sab. Txhua tus menyuam yaus uas xav tias muaj kab mob hauv lub plawv yuav tsum tau kuaj mob plawv Doppler ultrasound txhawm rau txiav txim siab txog kev txhim kho ntawm tus kabmob.