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

Kev siv tshuab ultrasound los kuaj mob plawv (cardiac Doppler ultrasound) yog ib txoj kev kuaj mob zoo heev rau kev kuaj mob plawv, tshwj xeeb yog kab mob plawv yug los. Txij li xyoo 1980, kev siv tshuab ultrasound los kuaj mob tau pib tsim kho sai heev. Ib yam li kev siv tshuab magnetic resonance imaging, CT thiab isotope scanning, kev siv tshuab ultrasound los kuaj mob plawv (cardiac Doppler ultrasound) kuj muaj qhov chaw nyob hauv plaub txoj kev siv tshuab kuaj mob tseem ceeb hauv kev kho mob niaj hnub no.
Kev siv tshuab ultrasound los ntsuas lub plawv (cardiac Doppler ultrasound) yog ib qho tseem ceeb tshaj plaws hauv kev kuaj mob plawv uas tsis yog phais. Cov tshuab no tsis yog tsuas yog muaj qhov zoo ntawm kev tsis mob, rov ua dua, tsis muaj teeb meem thiab yooj yim xwb, tab sis kuj muaj cov txiaj ntsig kev kuaj mob meej dua thiab raug dua li lwm cov kev kuaj mob. Tom qab ntau xyoo ntawm kev txhawb nqa, kev siv tshuab ultrasound los ntsuas lub plawv tau dhau los ua ib qho cuab yeej kuaj mob tseem ceeb hauv kev kho mob niaj hnub no.
Feem ntau hais lus, yog tias qhov tshwm sim ntawm kev kuaj pom tsuas yog qhov tsis txaus me me xwb, tsis tas yuav muaj kev kho mob tshwj xeeb. Yog tias nws yog qhov ua tsis tau zoo ntawm lub plawv nruab nrab lossis hnyav, kev kho mob yuav tsum tau ua sai li sai tau kom tiv thaiv kev hloov pauv ntawm tus neeg mob lub plawv thiab qhov ua rau muaj teeb meem loj. Hauv kev kuaj mob cardiomyopathy, cardiac Doppler ultrasound tuaj yeem txiav txim siab qib ntawm myocardial hypertrophy thiab cardiac chamber loj hlob hauv cov neeg mob; rau cov neeg mob uas muaj kab mob plawv coronary, cardiac Doppler ultrasound tuaj yeem qhia qhov chaw ntawm myocardial ischemia, pab cov kws kho mob tsim cov phiaj xwm kho mob raws li cov mob tshwj xeeb ntawm cov neeg mob. Cov kab mob tseem ceeb uas kuaj pom los ntawm cardiac Doppler ultrasound suav nrog aortic lesions (xws li lesions xws li aortic stenosis), lub plawv valve kab mob (xws li mitral valve lesions, stenosis, thiab lwm yam), ventricular kab mob, thiab lwm yam.
Kev siv Cardiac Doppler ultrasound tsis yog tsuas qhia tau qhov kev faib tawm ntawm cov ntshav ntws tsis zoo hauv lub plawv xwb, tab sis kuj qhia txog txoj kev thiab kev coj ntawm cov ntshav ntws hauv lub plawv mus rau qee yam. Nws tuaj yeem txiav txim siab seb qhov xwm txheej ntawm cov ntshav ntws hauv lub plawv yog laminar flow, turbulent flow lossis eddy flow, thiab tseem tuaj yeem ntsuas qhov contour, thaj chaw, ntev thiab dav ntawm cov ntshav ntws. Cardiac Doppler ultrasound tuaj yeem qhia ncaj qha txog kev sib raug zoo ntawm cov qauv plawv tsis zoo thiab cov ntshav ntws tsis zoo los ntawm kev tso saib cov ntaub ntawv ntws ntshav hauv daim duab ob-seem. Txhua tus menyuam yaus uas xav tias muaj kab mob plawv yug los yuav tsum tau kuaj mob cardiac Doppler ultrasound kom paub meej txog kev loj hlob ntawm tus kab mob.