Ultrasound chikamu chendarama yepamusoro yekuzvidzivirira pamuviri uye haina chakaipa kuna amai uye fetus. Inobatsira kuziva kare kuti zvinokonzera kusakanganiswa kwekukura kwekuberekwa, maitiro ekusafukidzira (semuenzaniso, Down's disease) uye inobvumira kukanganisa kwekuzvidzivirira kwakadaro mumakore masvondo gumi nemaviri. Pazvikamu zvekupedzisira zvehuzi, kuongorora panguva yekudzivirira kunoongororwa kuti uwedzere kutora maitiro, kutevedzana nehukuru hwahwo, nguva yegestational, uye placenta.
Yokutanga kuongorora ultrasound pakuberekwa
Yokutanga kuongorora ultrasound panguva yekuzvitakura kunoitwa panguva yevhiki 9-13. Iyo inzira inonyanya kukosha yekuongorora, iyo inoita kuti zvikwanise kubvisa kuve kwekuremara kwakakomba mu fetus. Munguva iyi yehutachiwana, nhengo dzakawanda uye zvigadzirwa zvemaatomical zve fetus zviri kutoonekwa. Pamusoro pekutanga ultrasound, unogona kuona zvinotevera:
- nhamba yezvibereko, nzvimbo yekusungirirwa kweparcenta, chengeta mamiriro emamniotic membrane. Mukana wekuwanda kwemimba inotarisa huwandu hwepascentas (mumapatya pane imwe chete inowanika placenta, mumapatya akaparadzaniswa);
- chengetedza nguva yekutenda uye nguva inotarisirwa yekuendeswa;
- kuti aongorore kukodzera kwepentecenta uye kuumbwa kwemudonzvo wembilical;
- kuti aratidze zviratidzo zvechromosomal defects. Ne ultrasound ye fetus neArt's syndrome, unogona kuona: zvinyorwa zvisinganzwisisiki zvemapfupa emapfupa, kuwedzera kwehutanda nzvimbo, kuchinja kweropa kuderera kuburikidza nemagetsi eti tricuspid).
- kuzivikanwa kwehuwandu hwakaipa hwemucheche;
- zvimwe zvirwere zvinotyisa (zvinotyisa kubvisa pamuviri, zviratidzo zvekuvhiringidzika kwepfungwa).
Yokutanga kuongorora ultrasound ye fetus, pasinei nekugadzirisa kwayo kushanda, haigone kupa 100% chivimbiso chekusabatwa kwezvisina kukwana mumucheche pamusana pemaduku maduku.
Chechipiri ultrasound kuongororwa kwevakadzi vane pamuviri
Kuongorora kwechipiri ultrasound ye fetus kunoitwa pa19-23 kwevhiki yekubata uye kunobvumira kuongororwa kwakajeka kwehutano hwehutachiona huri hunoitwa. Munguva yekuongorora kwechipiri ultrasound panguva yekuzvitakura, unogona:
- kutsanangura nguva chaiyo yehupamuviri;
- kutsunga kwechinzvimbo uye chikamu chezvino che fetus;
- Sarudza hutano hwemucheche;
- chengetedza nzvimbo uye mamiriro epa placenta;
- sarudza kuwanda kweamniotic fluid;
- kuti aone mamiriro emhuri.
Iyo ultrasound yeuropi ye fetal inobvumira kusabvisa zvisizvo zvekusimudzirwa kwayo, kuona zvivako zvinyorwa zvepamusoro uye maplexous avo, mauropi ekupakati uye posterior cranial fossa. Iyo ultrasound yeuropi ye fetal inoitwa sequentially mubato we craniocaudal (kubva kumusoro kumusoro).
Chechitatu ye ultrasound kuongorora kuve nepamuviri
Chirwere chechitatu chekudzivirira kwekuita pamuviri chinoitwa pamasvondo 32-34. Pamwe pamwe ne ultrasound, dopplerography uye carotocography inogadzirwa, iyo inobvumira kuongorora hutachiwana hwemucheche uye mamiriro epa placenta. Nekubatsira kwe ultrasound zvinogoneka:
- kuti aratidze kukanganisa kwe fetus;
- kuti aone chimiro uye mharidzo ye fetus, inogona kuiswa muchero wembilical;
- kuverenga kuenzanisa kuyerwa nekukura kwe fetus;
- kuongorora kufanana kwema fetus kusvika panguva yekutora;
- chengetedza hutano hwehutendea uye sarudzo (kusiyanisa, kuoma, kukura);
- eyera muyero weamniotic fluid;
- chengetedza mamiriro emuviri wechibereko;
- mumadzimai avo vaiva nechikamu chekuchengetedzwa kwemashoko munhoroondo, chengeta kuwanda kwechivara pachibereko.
Mushure mokunge wechitatu ultrasound mumukadzi ane pamuviri anogadzirirwa pre-tactics yokutakura.
Saka, takakurukura imwe yenzira nzira yekuita nayo kuongorora panguva yekuzvitakura. Sezvaunogona kuona, ultrasound ndiyo inonyanya kukosha yekuongororwa nzira yekuzarura chirwere mumatatu ose ekudzivirira, inobvumira kuongorora mamiriro e-placenta uye fetus, nekugadzirisa nguva chaiyo yekuzvitakura.