Pakutanga pakuberekwa, zvimwe zvakagadzirwa ne-ultrasound zvakadai sekuvapo kwe- yolk sac uye korona-ku-rump ratio inoshandiswa kubatsira kusimbisa hutano hwehupombwe, nguva yekuita zvepabonde uye kukwanisa kuberekwa pamuviri . Mushure mokutanga kwemwedzi mitatu, zvisinei, iyo embryo yakagadzirwa kuva fetus uye itsva zviratidzo zvinoshandiswa kuderera mumakore ekutenda uye kuongorora hutano hwemucheche.
Pakati pezviratidzo zvinoshandiswa pakuongorora fetus kukura uye hutano ndehurefu hwomukadzi wemucheche, iyo yakareba pfupa muhudyu yevanhu. Zvichienzaniswa kubva pakuguma kwemafupa kusvika kune shaft, chirwere chevakadzi chinowanzoonekwa mumamilimita.
Kukanganisa Kwechikadzi Kureba Sechiratidzo Chepamuviri Utano
Kunyange zvazvo shoma shorti yakareba kuwanikwa pa ultrasound inogona kuratidza kudiwa kwekuenderera mberi kuongororwa kutonga mimwe mamiriro ezvinhu, zvinokoshawo kugara uchifunga mupfungwa dzisingakwanisi kushandisa femur kure sechiratidzo chekubata pamuviri usina kunaka. Kubva pane kukanganisa kwevanhu kusvika kune dzimwe nguva zvigadzirwa zve ultrasound kusvika kune zvakasiyana-siyana, uhu hunopera humwe chete hunosiyana pakati pevakawanda hunofanirwa kushandiswa kuita sarudzo nezveramangwana rekudzivirira, uye kazhinji imwe ine zvakawanda zvisingakwanisi.
Kunyange zvazvo shoma shorure yakatarwa pachirwere chechipiri mune chechipiri kana chechitatu inomutsa kunetseka kune zvimwe zviitiko zviri pasi apa, zvakakosha kuyeuka kuti muhuwandu hwezvizvaro izvi (73 muzana), vabereki vacharamba vaine nguva yakazara kuberekwa kwomwana ane utano hwakakura hunoenderana nezera rekuita gestational.
Dwarfism
Kana uhu hwakareba hwave huri kuwanikwa huri pasi pepfumbamwe percentile, vakadzi vangarayirwa pamusoro pehuwandu hwehutano hwakakonzerwa nekukuvara kwakashata. Chimwe chinetso ndechokuti mhumbu dzine nguva shoma-kupfuura-inotarisirwa femur yakawanikwa iri pangozi yakanyanya ye skeletal dysplasia, zvichida inozivikanwa sechirfism.
Pane zvinetso zvinopfuura 200 zvinogona kuenzaniswa se skeletal dysplasia, uye zvose zvinoratidzika skeleton skeleton inokonzerwa nekateti uye bone kukura zvisina kunaka. Izvi zvakasiyana nemamiriro mashomanana, iyo inenge yakakwirira ye 3 kana kupfuura inokanganisa mitemo pasi pezvinorehwa nezera asi yakaenzana.
Placental Insufficiency
Zvimwe zvidzidzo zvakakonzera kushushikana pamusoro pekukwanika kwepentecenta kuti ipe nzvimbo yakakwana yezvokudya zvemucheche ane urefu hwemaminiti mashoma. Nemhaka yezvakadaro, hupfupi hwema femir urefu hwakabatanidzwa kune zvimwe zvinokonzera kubata mitezo yakadai sekuberekwa kwakakosha kwezera remakore, vana vanozvarwa nechepasi kuberekwa uremu, uye kutanga kuberekwa.
Aneuploidies
Mukuwedzera, zviduku-zvishoma-zvakatarwa zvevakadzikadzi zvakashandiswa sezvinyoro zvishoma nezvimwe zvinokonzera maitiro, zvakadai seTrisomy 21 (Down syndrome), trisomy 13 (Patau syndrome) uye trisomy 18 (Edward's syndrome). Zvinyorwa zvishoma ndezve "mapuranga matsvuku" anowanika pane zvinokonzerwa ne-ultrasound izvo zvisiri zvisiri izvo, pane se, asi pane zviitiko zvinowanzoitika kakawanda muhuwandu hwevana vane mazamu akaedza kuziva mazita ekusimbisa zvisiri izvo zvisiri izvo, asi zvinoitika kazhinji mumatususi ne chromosomal trisomies.
Kana ichienzaniswa nepamusoro-soro mararamiro akadai senyuchi yeganda, urefu hwemadzimai hunofungidzirwa sechechi-yepamusoro-chekisi yepasi pasi.