A I-Detal Doppler yindawo egcinwe ngesandla i-ultrasound esetyenziselwa ukufumana i Intliziyo yentliziyo yokuthambisa. Isebenzisa Isiphumo se-doppler ukubonelela ngokuvakalayo ukubethwa kwentliziyo. Ezinye iimodeli zikwabonisa ireyithi yentliziyo ekubekweni ngomzuzu (BPM).

Ukubek 'iliso kubizwa ngokuba neliso lobutshaba kunye nosana olusetyenziselwa ukubeka iliso kwidatha yoomama nooninali. Inokuluva utshintsho olwenziwe ngokwasemzimbeni, lukhulisa kwaye luqinise lolwazi, kwaye emva koko luyiguqule kulwazi lombane, kwaye emva koko lube kwaye luhlele ulwazi. Ukuba i-Index ekhankanyiweyo idlulisiwe, iya kubangela inkqubo yealam.