I-Doppler Color Ultrasound: Vumela lesi sifo singabi nandawo yokucasha

I-cardiac Doppler ultrasound iyindlela yokuhlola ephumelela kakhulu ekuxilongweni kwesifo senhliziyo, ikakhulukazi isifo senhliziyo esizalwa naso. Kusukela ngawo-1980, ubuchwepheshe bokuxilonga i-ultrasound buqale ukuthuthuka ngesivinini esimangalisayo. Njengokuthwebula izithombe ze-magnetic resonance, i-CT kanye ne-isotope scanning, i-cardiac Doppler ultrasound nayo inendawo kubuchwepheshe obune obuyinhloko bokuxilonga izithombe kwezokwelapha zanamuhla.
I-cardiac Doppler ultrasound ingenye yezindlela ezibaluleke kakhulu zokuhlola izithombe ekuhlolweni kwenhliziyo okungangenisi umdlavuza. Lobu buchwepheshe bokuhlola abugcini nje ngokuba nezinzuzo zokuba bungabi buhlungu, buphindaphindeke, bungabi nangozi futhi bulula, kodwa futhi bunemiphumela yokuhlolwa ecacile nenembile kunezinye izivivinyo zezithombe. Ngemva kweminyaka eminingana yokukhushulwa, i-cardiac Doppler ultrasound isibe ithuluzi lokuxilonga elibalulekile kwezokwelapha zesimanje.
Ngokuvamile, uma umphumela wokutholwa uwukuntuleka okuncane kuphela, akukho ukwelashwa okukhethekile okudingekayo. Uma kungukwehluleka kwenhliziyo okumaphakathi noma okukhulu, ukwelashwa kufanele kwenziwe ngokushesha okukhulu ukuze kuvinjelwe izinguquko esakhiweni senhliziyo yesiguli kanye nokwenzeka kwezinkinga ezinkulu. Ekuhlolweni kwe-cardiomyopathy, i-cardiac Doppler ultrasound inganquma izinga le-myocardial hypertrophy kanye nokwandiswa kwegumbi lenhliziyo ezigulini; ezigulini ezinesifo senhliziyo, i-cardiac Doppler ultrasound ingabonisa ngokwemvelo indawo ye-myocardial ischemia, isize odokotela ukuthi bathuthukise izinhlelo zokwelapha ezifanele ngokwezimo ezithile zeziguli. Izifo eziyinhloko ezitholakala nge-cardiac Doppler ultrasound zifaka phakathi izilonda ze-aortic (njengezilonda ezifana ne-aortic stenosis), izifo ze-valve yenhliziyo (njengezilonda ze-mitral valve, i-stenosis, njll.), izifo ze-ventricular, njll.
I-cardiac Doppler ultrasound ayikwazi nje ukukhombisa ukusabalala kokugeleza kwegazi okungavamile emgodini wenhliziyo, kodwa futhi ibonise indlela kanye nesiqondiso sokugeleza kwegazi kwenhliziyo ngezinga elithile. Inganquma ukuthi uhlobo lokugeleza kwegazi kwenhliziyo luwukugeleza kwe-laminar, ukugeleza okuguquguqukayo noma ukugeleza kwe-eddy, futhi ingalinganisa nobubanzi, indawo, ubude kanye nobubanzi obuthile bomsebe wokugeleza kwegazi. I-cardiac Doppler ultrasound ingabonisa ngqo ubudlelwano phakathi kwesakhiwo senhliziyo esingavamile kanye ne-hemodynamics yenhliziyo engavamile ngokubonisa ulwazi lokugeleza kwegazi kumdwebo wesigaba esiphindwe kabili. Zonke izingane okusolwa ukuthi zinesifo senhliziyo sokuzalwa nazo kumele zihlolwe i-cardiac Doppler ultrasound ukuze kutholakale ukuthi lesi sifo sikhula kanjani.