Ngaphandle kokucwaninga nokuhlola ukugeleza kwegazi, i-doppler ultrasound ingakwazi ukuhlola izinto ezibalulekile njengokukhula nesimo se-fetus, inani lama-amniotic fluid, kanye nokunyakaza kwe-fetus. Ngaphezu kwalokho, usebenzisa le ndlela yokucwaninga, kungenzeka ukuba ulinganise ubukhulu bekhanda, isithotho, isisu, izitho zomntwana, futhi unqume isisindo salo esilinganiselwe.
Ukuhlukunyezwa komzimba kuboniswa ngokukhethekile kwabesifazane abakhulelwe abanokukhulelwa okuphindaphindiwe, i-Rhesus-impikiswano, isifo sezinso, imithwalo yegazi, i-gestosis, kanye nokutholakala kokukhula kwe-lag nokuthuthukiswa komntwana.
Inhloso eyinhloko ye-doppler ultrasound
Umphumela we-doppler usetshenziselwa kakhulu ekukhulelweni ukuhlola ukugeleza kwegazi emithanjeni ye-placenta, isisu kanye nesisu, okuvumela ukugweba ukuthi ingane ithola oksijini nokondla okwanele. Ngokusebenzisa inqubo ye-dopplerometry, ochwepheshe bayakwazi ukuthola ama-curves of flow flow velocities ezitsheni zesimiso se-womb-fetus-fetus. Ngaphezu kwalokho, ngokusekelwe ezinkampanini zokuphikisana kwamathambo, imiphumela etholakalayo ihlaziywa. Ngesikhathi esifanayo, ucwaningo lwezintambo zomzimba, izimbangela ze-uterine kanye nezitsha ze-fetal zifundwa.
Ngosizo lwe-doppler ultrasound, kunezinkinga eziningana ezingathà sina ezingabonakala, njenge-insufficient ye-placental ne-hypoxia ye-intrauterine fetal. Ngaphezu kwalokho, ukutadisha kwe-Doppler kusiza ekutholeni imbangela yobungane bokubeletha (isibonelo, ukuntuleka kwezakhi), futhi ngesikhathi sokusola i-anemia emntwaneni, okudinga ushintsho olusheshayo kumaqhinga okukhulelwa nokubeletha.
Izikhombisi ze-doppler ekukhulelwe
Imiphumela ye-doppler, eyenziwa ngesikhathi sokukhulelwa, yenza kube lula ukwahlulela ukuphulwa okuthile ekuthuthukiseni ingane. Cabanga ngezinkomba eziyinhloko ezitholakale ngenxa yokwenza i-doppler ultrasound ekukhulelwe.
Ukuphazamiseka kwe-circulatory : ube nama-3 degrees. Owokuqala wabo ukhuluma ngokuphulwa kwegazi phakathi kwesibeletho kanye ne-placenta ngenkathi kugcinwa ukugeleza kwegazi phakathi kwe-placenta ne-fetus futhi ngokuphambene nalokho. Ngezinga lesibili lokuphazanyiswa kwegazi, kukhona ukuphazamiseka kwegazi ngesikhathi esisodwa phakathi kwesibeletho kanye ne-placenta kanye ne-placenta ne-fetus, engenzi izimpikiswano ezinkulu. Uma kukhona ukuphazanyiswa okubucayi kokugeleza kwegazi phakathi kwe-placenta ne-fetus, lokhu kubonisa ukuba khona kwezinga lesithathu lokuphazamiseka kokujikeleza.
Ukuhlukunyezwa kwe-hemodynamics ye-fetus (i-hemodynamics - lokhu kuhamba kwegazi ezitsheni): futhi ube nama-3 degrees. Ekuqaleni kukhona ukuphazamiseka kokugeleza kwegazi kuphela emthonjeni wezintambo. Ezingeni lesibili kukhona ukwephulwa kwe-hemodynamics ye-fetus, eyingozi ngenxa ye-hypoxia ye-fetal. I-degree yesithathu ibhekene nesimo esibucayi se-hemodynamics futhi ikhula hypoxia yobusana. Kukhona ukwehla kokugeleza kwegazi ku-aorta ye-fetus kuze kube yilapho engekho ngokuphelele, kanye nokwephulwa kokumelana nomshini wangaphakathi we-carotid.
Ama-Doppler Rates ekukhulelweni
Ngokuqondene nokucacisa imiphumela yeDopplerography kanye
Ukuhambisana nalezi zindinganiso kuhlolwa ngokulinganisa kwesikhathi sokukhulelwa, kanye nokucatshangelwa ukushintshashintsha kwezinkomba.