Nzira yacho inobatwa sei?
Pasina dopplerography ye fetus, chiremba anosarudza nzvimbo iri pasi pekutsvakurudza: midziyo yeutteroplacental blood flow, midziyo yeuropi, mwoyo, chiropa. Nokugadzira Doppler basa uye kutumira sensor kune nhengo iri pasi pekuongororwa, chiremba achagamuchira mufananidzo pahwindo. Iyo majekiti achaongorora izvi data pachayo. Nzira yacho haina maturo uye haina nguva pfupi - 10-15 maminitsi.
Ndega wose anonzi dopplerography?
Dopplerography ye uteroplacental ropa inoyerera inorayirwa kune vose vakadzi vane pamuviri muvhiki 32 yekutakura mwana. Panyaya yezviratidzo zvakananga (kushanduka-kushaya kukwana, kusava nechokwadi kwekukurumidza kwekuwedzera mukati), chidzidzo chacho chingaitwa mberi kwepanguva inoratidzwa (masvondo 22-24).
Dopplerography inotsanangurwawo mumamiriro ezvinhu akadai se:
- multiple pregnancies;
- Rhesus-fetus uye amai vanopesana.
Uyewo, mumamiriro ezvinhu apo miviri yepamuviri yemukomana haifananidzi nemakore ekutenda, ultrasound ye fetus ine dopplerography inogona kugoverwa kuongororwa ropa rinoyerera.
Ndezvipi zvirongwa zvinowanikwa mune Doppler?
Pamwe chete, pane 2 arteri uye 1 mhou mumbilical cord, iyo inopa fetus nemiti uye oxygen. Saka, pamharoti ropa rinoenda kumwana zvakananga kubva pamaketeni. Kuburikidza nemuviri, zvigadzirwa kubva mukuora zvinodzingwa kubva mu fetus.
Nokuda kwekushanda kwemashoko eropa akadaro, kushorwa mumasvingo ehateri kunofanira kuva yakaderera. Mumamiriro ekuderedza kwemudziyo, kushayikwa kweokisijeni kunowedzera, iyo inokanganisa kusagadzikana kwekuwedzera kwemukati.
Ndezvipi zvinetso zvekuyerera kweropa zvinogona kuongororwa neDoppler?
Pakuita dopplerography yemidziyo ye fetal, zvinotevera zviratidzo zvinotangwa:
- ropa flow velocity,
- mhepo yakasimba,
- elasticity yemidziyo yeropa.
Kana achienzanisa maitiro akawanikwa, kusangana kwakasiyana-siyana kweropa rinogona kuonekwa. Saka, allocate:
- 1 degree A - kana pane kusakosha muutro-placental blood system, asi fetal-placenta system inowanzoshanda;
- 1 degree B - inoratidzwa apo fetus-placenta system haina simba, uye uteroplacental ropa inoyerera haina matambudziko;
- 2 degree - mumamiriro ezvinhu apo kukanganisa kuripo pakarepo mumitambo 2, asi haisi mhosva;
- 3 digita - inoonekwa apo kudarika kwe fetaline placenta system inokosha, uye uteroplacental ropa inoputika inopwanyika.
Pa1 degree yekuputsa, mukadzi ane pamuviri anoonekwa nguva yose yasara. Kuongorora uye ultrasound kunoitwa kamwe kamwe pavhiki. Panguva imwecheteyo, kana CTG yakaratidza haina kuratidza chero kukanganisa uye kutyisidzirwa kwepamwe nzira yekuzvitakura, kuberekwa kunoitika panguva.
Nezvidimbu zvitatu zvekuputsa, mukadzi ari pasi pekutariswa kwezuva nezuva navanachiremba, uye muhupo hwekutyisidzira zvinhu zvekuzvitakura, chikamu chekudzivirira chiri kuitwa.
Nokudaro, dopplerography ye fetus ndiyo nzira yekutsvakurudza iyo inosarudza kana uteroplacental ropa inopera inowanzo uye kana mwana anonzwa kurwadziwa munyaya iyi.