Doppler ultrasound pakuberekwa - zvinowanzoitika

Mukuwedzera pakutsvakurudza uye kuongororwa kwe fetoplacental blood flow, doppler ultrasound inogona kuongorora zvinhu zvakakosha zvakadai sekukura uye mamiriro emucheche, chiyero che amniotic fluid, uye fetal movements. Mukuwedzera, uchishandisa nzira iyi yekutsvakurudza, inova inogoneka kuyera kuenzana kwemusoro, thorax, mimba, mitezo yemakumbo, uye kusarudza kuenzanisa kwayo.

Dopplerography inonyanya kuratidzwa kune vakadzi vane pamuviri vane mimba yakawanda, Rhesus-mhirizhonga, chirwere chepfungwa, mishonga yeropa, gestosis, pamwe nekuonekwa kwekukura kwechikafu nekukura kwechifuva.

Chinangwa chikuru che doppler ultrasound

Mhedzisiro ye doppler inowanzoshandiswa mukudzivirira kutarisa kubuda kweropa mumaketani epa placenta, chibereko uye fetus, iyo inobvumira kutonga kana mwana anogamuchira oksijeni yakakwana nemuviri. Kushandisa nzira ye dopplerometry, nyanzvi dzinokwanisa kuwana magetsi ekubuda kwemazivi mumidziyo ye chibereko-placenta-fetus system. Zvakare, zvichibva pane zvinyorwa zvinoshandiswa mumashamba ekudzivirira, zviwanikwa zvakawanikwa zvinongororwa. Panguva imwecheteyo, mitsetse ye umbilical cord, uterine arteri uye midziyo ye fetal inodzidzwa.

Nekubatsira kwedoppler ultrasound, zvinetso zvakakomba zvakanyanya zvinogona kuonekwa, zvakadai sepascental insufficiency uye intrauterine fetal hypoxia. Mukuwedzera, kudzidza Doppler kunobatsira kuziva chikonzero chekuita fetus (kwete, kusava nemuviri), uyewo munguva yekufungidzira kuti ane ania mu fetus, izvo zvinoda kuchinja pakarepo munzira dzekudzivirira nekuberekwa.

Zviratidzo zveDoppler pamuviri

Migumisiro ye doppler, yakaitwa panguva yekuzvitakura, inoita kuti zvikwanise kutonga kukanganisa kwakadaro mukugadzirwa kwe fetus. Funga nezvezvikwangwani zvikuru zvakawanikwa nekuda kwekuita doppler ultrasound pakuzvitakura.

Zvirwere zvinopararira : vane 3 digiri. Yokutanga wavo inotaura nezvekutyora kwekuyerera kweropa pakati pemubereki uye placenta apo uchichengetedza ropa ruchiyerera pakati pe placenta uye fetus uye zvakasiyana. Pachiitiko chechipiri chekuvhiringidzika kwemhirizhonga, pane kukanganiswa kwemazuva matanhatu pakati pemubereki uye placenta uye placenta uye fetus, iyo isingagone kuchinja hukuru. Kana pane zvipingamupinyi zvakakosha zvekuyerera kweropa pakati pepentecenta uye fetus, izvi zvinoratidza kuvapo kwechidimbu chechitatu chekuvhiringidzika kwemhirizhonga.

Kurwisana kwehumodynamics ye fetus (hemodynamics - kufamba uku kweropa mumidziyo): kunewo madigiri matatu. Pakutanga kune kukanganiswa kwekuyerera kweropa bedzi mumutsetse wechirwere chemubilical. Pachipiri chechipiri kune kukanganisa kwehemodynamics ye fetus, iyo ine ngozi nekuda kwe fetal hypoxia. Dhigirii yechitatu inoratidzirwa nehutano hwakanyanya hwehemodynamics uye kuwedzera fetal hypoxia. Pane kuwedzerwa kweropa ruchiyerera mu aorta ye fetus kusvikira kusakwana kwacho zvachose, pamwe nekuputsika kwekumanikidzwa mukati mechereti yekati carotid.

Doppler Rates muUkubata

Nekujekesa migumisiro yeDopplerography uye achizvienzanisa nemitemo ye doppler ultrasound pamuviri, saka zviri nani kuisiya kune vadzidzisi, sezvo kuzvitsanangura kweDoppler kudzidza kwakaoma kana usina ruzivo rwakakosha. Mumwe anogona kungotaura zvimwe zvikonzero pane izvo nyika yekukura kwe fetus inotaridzirwa. Pakati pavo: maitiro emutsara we uterine arteri kushorwa, mitemo yechirongwa chekudzivirira kweambilical arteri, maitiro e-pulsation index mu fetal aorta, chimiro chekutsvaira kwepulsation yepakati yeperesi yemazamu ye fetus nevamwe.

Kuteerera nemitemo iyi kunoongororwa maererano nenguva yekudzivirira, pamwe nekufunga nezvekuchinja kunogona kuitika mumakwikwi.