Kule minyaka engama-20 ubudala, indlela elula kunye neyobuchule isetyenziselwe ukufunda i-blood-placental circulation circulation-fetal doppler. Le ndlela isekelwe kwimpembelelo yokutshintsha kwexesha lokutshatyalaliswa kwamagagasi, efunyenwe ngekhulu le-19 ngu-Austrian scientist H.I. Doppler, kwaye isetyenziswe ngempumelelo ekubonweni kwangaphambili komama wabakhulelweyo abakhulelweyo.
Yintoni i-dopplerometry yomntwana?
I-Doppler isifundo sezantya kunye nobukhulu bokuhamba kwegazi kwisibeleko sikamama, intambo yomtya kunye neempahla zentsana. Ingundoqo yale nkqubo kukuba i-ultrasonic pulses ethunyelwe ngumenzi we-apparatus kwiimpawu zibonakaliswa kwi-erythrocyte ehamba ngaphakathi kwiinqanawa kwaye isalathiso sinikezwa ngendlela ye-ultrasound. Ngokuxhomekeke kwindlela ohamba ngayo kunye nesantya se-erythrocyte kwaye, ngokufanelekileyo, ubukhulu beentshukumo ze-ultrasonic, ifowuni ibhalisa izibonakaliso zezibonakaliso. Ngokusekelwe kuhlalutyo lwolu datha, ukuhamba kweempawu zokuguqulwa kwenkqubo ye-mother-placenta-fetus ichongiwe.
Le nkqubo iyahlukana nophando oluqhelekileyo lwe-ultrasound ekuthi ukuphuma kwegazi kwiinqanawa kwi-screen monitor kuboniswa ngemibala eyahlukileyo kuxhomekeke kwisantya sokunyakaza. Le nto idinga amandla amaninzi, kodwa ungakhathazeki malunga nokuba i-doppler inobungozi kumntwana. Esi sifundo asiyingozi nakubini nangomama.
Imiqondiso ye-doplerometry ye-fetus
I-ultrasound ye-fetal ene-doppler ibonelelwe ngabasetyhini, abakhulelwe kunye nezifo ezifana nalezi:
- gestosis;
- pyelonephritis;
- isifo sikashukela;
- ukungqinelani koomama kunye nomntwana ngeqela legazi;
- xi nzelelo;
- izifo ze-collagen.
Ukongezelela, i-doppler yokuphulaphula intliziyo yesibindi ibonakaliswe ngokungaqhelekanga okufunyenwe yi-ultrasound kunye ne-cardiotocography. Ezi ziquka:
- ukulibaziseka ekuphuhlisweni komntwana;
- kunqongophala kwamanzi ;
- ukuvuthwa kwangaphambi kwepentecenta;
- uphuhliso olungavamile lomkhonto;
- ukungafani ngokukhululeka komntwana ngexesha lokukhulelwa;
- izifo ze-chromosomal, okanye ukusola kwabo.
Esi sifundo senziwa ekupheleni kokukhulelwa okungenani iiveki ezingama-20. Emva kwenkqubo, ugqirha unikeza iziphumo ngokubhalwa kwe-fetal doppler, ebonisa iinkqubo okanye ukuphambuka ekuphuculeni ukukhulelwa. Olu luhlolisiso olubaluleke kakhulu ngoncedo lwalo lungangoko kwiinqanaba zokuqala ukuchonga izifo ezahlukeneyo zesifo okanye intsingiselo kumzimba kamama.