Ib tug neeg yog nws xav paub, thiab txawm mus rau cov poj niam cev xeeb tub. Tsis muaj kev txhawj xeeb, txhua tus niam txiv yuav tsum niaj hnub nug los ntawm cov lus nug txog nws tus me nyuam zoo li lub plab, nws zoo li cas, nws ua li cas thaum lub sijhawm ntawd, thiab lwm yam. Qhov zoo ces, science thiab technology tsis sawv ntsug, thiab, kom muaj kev thaj yeeb nyab xeeb, rau cov lus teb rau txhua nqe lus nug ntawm cov poj niam cev xeeb tub thiab tsis tsuas yog tau tsim cov khoom siv ultrasound plaub.
Tsis zoo li ntau tshaj thiab nyab xeeb ob sab hauv daim duab ntawm daim duab dub thiab dawb ntawm qhov screen, incomprehensible rau tus neeg mob, 4 d ultrasound ntawm lub fetus yog ib hom ultrasound nyob rau hauv lub hom 3 d. Yog li, nws yog feem ntau hu ua 3d video ultrasound. Thiab yog hais tias qhov 3D ultrasound, lub ntim thiab xim duab ntawm lub fetus nyob rau hauv peb qhov ntev "qhov ntev / qhov siab / qhov tob," yog qhov qub, ces 4 d ultrasound thaum cev xeeb tub muaj plaub qhov "- sij hawm", uas, ntxiv nrog rau cov ntsiab lus me tshaj plaws ntawm tus me nyuam, thaum lub sijhawm Ultrasound tuaj yeem xav tau rau nws txoj kev tawm hauv on-line. Ntxiv mus, cov ntaub ntawv teev cov duab ultrasound nyob rau hauv cev xeeb tub 3d thiab 4d tawm ntawm lub disk los yog flash card nyob rau hauv daim ntawv ntawm ib tug video clip los yog ib tug yooj yim duab yuav kom ntseeg tau rau yav tom ntej niam txiv thiab lawv cov txheeb ze txais thiab khaws cov kev kaj lug tshaj plaws ntawm thawj cov rooj sib tham nrog crumbs ntev.
Tiam sis qhov kev ua haujlwm 4d ultrasound ntawm lub fetus, raws li ntau yam ntawm peb cov duab ultrasound, dua li qhov kev xav tau thiab xav paub txog leej niam kom tau ntsib nws tus menyuam hauv plab, nws kuj tseem ceeb hauv cov ntsiab lus tseem ceeb nram qab no:
- kev txheeb xyuas cov kev txhim kho sab nraud ("hws lub qhov ncauj", "lip lip", teeb meem nrog tus txha caj qaum);
- qhov zoo tshaj plaws, muaj tseeb thiab ceev tsis zoo li 2d ultrasound, txhawm rau kuaj chromosomal abnormalities ntawm lub embryo (zam ntawm kev txheeb xyuas qhov yuam kev hauv kev ntsuas ntawm lub ncauj tsev menyuam quav, kev kuaj ntawm pob txha ntswg);
- nrhiav kev txheeb ntawm kev txhim kho ntawm lub hauv nruab nrab hauv lub paj hlwb vim qhov tseem yuav rov kho qhov hlwv ntawm lub paj hlwb ntawm lub embryo twb nyob hauv thawj lub hli trimester;
- kuaj mob ntawm lub plawv ntawm lub plawv (tsis nyob tsawg dua ntawm kev txawj ntse ntawm tus kws kho mob dua li cov pa ultrasound, hauv internet hom pub kuaj xyuas kev ua haujlwm ntawm lub plawv hauv txhua theem ntawm kev mob plawv);
- visualization ntawm cov ntsiab lus ntawm cov pob txha fetal, ntev, symmetry ntawm lub nqua, txha nqaj puab tsaig, puab tsaig thiab ntiv tes thiab cov ntiv taw nrog kev xaiv ntawm pob txha txhim kho;
- kev soj ntsuam txog ntawm lub ntsej muag ntawm lub fetus, qhia tias muaj qhov teeb meem / tsis muaj teeb meem hauv nws txoj kev loj hlob;
- ib qho kev txiav txim siab ntawm kev sib daj sib deev ntawm tus menyuam vim pom tau qhov siab ntawm qhov chaw mos.
Qhov zoo tshaj plaws rau kev ua 4d ultrasound thaum cev xeeb tub yog lub sij hawm 10-28 lub lis piam. Thaum lub sijhawm no, tus menyuam yaus kuj tseem tuaj yeem txav mus rau hauv dej ntawm amniotic dej ntawm niam lub tsev menyuam, uas tso cai rau nws pom thiab nws txoj haujlwm ntawm nws lub cev. Thaum muaj "laus dua", feem ntau txhim kho lawv txoj haujlwm nrog lawv nraub qaum rau qhov sensor, tau txais cov duab zoo ntawm crumbs yuav ua tau teeb meem.