Thawj tus ultrasound ntawm tus poj niam cev xeeb tub tsis yog tsuas yog ib lub sijhawm zoo rau nws pom nws tus menyuam tab txawm nws ua ntej nws yug los, tab sis kuj yog ib qho tseem ceeb tshaj plaws kev kuaj mob rau kev xeeb tub. Qhov tseem ceeb tshaj yog qhov ultrasound nyob rau hauv cov theem thaum ntxov ntawm cev xeeb tub, txij li tsuas yog hauv thawj peb lub hlis nws tau pom "pom" cov mob loj ntawm lub fetus thiab qhov chromosomal abnormalities.
Thawj ultrasound thaum cev xeeb tub
Gynecologists pom zoo kom dhau tsawg kawg yog peb qhov kev soj ntsuam ultrasound, ib qho ntawm txhua lub sijhawm uas cev xeeb tub. Txawm li cas los, qee lub sij hawm, leej niam lub neej yav tom ntej tsis yog ib qho, tab sis tsawg kawg yog ob lub ultrasound hauv thawj peb lub hlis thaum cev xeeb tub: thaum sau npe ntawm ib tug poj niam sab laj, thiab thawj tus qauv ultrasound thaum cev xeeb tub (10-14 lub lim piam).
Qhov tseeb hais tias ultrasound nyob rau hauv thawj lub lim tiam ntawm cev xeeb tub pub, thawj, los tsim qhov tseeb ntawm cev xeeb tub. Qhov no tseem ceeb heev yog tias ib tug poj niam tsis tau xeeb tub ib tus menyuam ntev. Qhov thib ob, ultrasound yuav pab nrhiav tus me nyuam hauv plab, uas yog ib qho tseem ceeb rau kev kuaj mob ntawm ectopic. Tus kws kho mob tshwj xeeb yuav ntsuas cov voj voog ntawm lub embryo (ntawm nws lub siab lub plawv dhia), cais los yog, alas, paub meej tias kev loj hlob ntawm ib tug cev xeeb tub khov.
Tsis tas li ntawd, siv ultrasound rau thaum ntxov ntawm cev xeeb tub txiav txim qhov kev tsim phom sij ntawm kev xeeb tub, nrog rau cov kab mob los yog txawv txav ntawm sab hauv genitalia ntawm leej niam yav tom ntej (uterine myoma, qog thiab hlwv ntawm qe menyuam, bicorne uterus, thiab lwm yam).
Thaum pib ua ultrasound thaum cev xeeb tub ntawm 10-14 lub lim piam, tus qauv ntawm embryo thiab nws cov week (chorion, amnion thiab yolk sac) yog kuaj xyuas, chromosomal abnormalities (Down's syndrome) los yog malformations (neural tube defects). Tus kws kho mob pom tau tias lub hnub nyoog ntawm tus me nyuam hauv plab hnyuv laus, uas yog tus saib xyuas obstetrician-gynecologist yuav raug coj thaum txiav txim siab lub sij hawm yug menyuam.
Npaj ultrasound thaum cev xeeb tub
Npaj rau kev tshawb nrhiav, nyob ntawm seb lub ultrasound ua tiav thaum cev xeeb tub. Thaum ua ultrasound hauv thawj lub limtiam uas cev xeeb tub, tsis muaj kev kawm tshwjxeeb: qhov kev kuaj ntawd yog siv lub vaginal sensor. Ua ntej qhov kev kuaj mob, ib tus kws kho mob tshwj xeeb yuav hais kom koj zais qhov zais zis.
Yog tus thawj ultrasound siv thaum cev xeeb tub hauv 10-14 lub lim piam, tom qab ntawd, raws li txoj cai, nws yog kev kuaj mob transabdominal (los ntawm phab ntsa plab). Rau ob peb teev ua ntej txoj kev, haus 1.5-2 khob kua dej uas tsis yog carbon.
Tsis txhob hnov qab nqa cov phuam huv los yog ntaub qhwv thiab hnab looj tes (yog tias kev kuaj kev tuag).
Cov txiaj ntsig thiab kev cai ntawm ultrasound ntawm 12 lub lim tiam ntawm cev xeeb tub
Tus txheej txheem ultrasound kav ib nrab ntawm 10-30 feeb. Tom qab ntawd tus kws kho mob yuav sau ib daim ntawv pov thawj tshwj xeeb, uas nws yuav sau cov ntsiab lus ntawm txoj kev tshawb fawb.
Cia saib cov tseem ceeb tshaj plaws ntawm kev txhim kho ntawm tus me nyuam hauv plab rau 12 lub lis piam:
1. Lub coccyx-parietal fetal size (CTE) plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab txog kev xeeb tub.
| Term, lub lim tiam | 4 | 5 | 6th | 7th | 8th | 9th | 10 | 11th | 12th | 13th | 14th |
| KTP, cm | 0.3 | 0.4 | 0.5 | 0.9 | 1.4 | 2.0 | 2.7. | 3.6. | 4.7 | 5.9 | 7.2 |
2. Qhov loj ntawm qhov chaw tsho loj . Nquag
3. Lub plawv dhia hauv plawv (HR) . Feem ntau, tus menyuam lub plawv dhia ceev ceev ntawm 110-180 neeg ntaus ib feeb ntawm lub limtiam 12. Txo hauv lub plawv dhia mus txog 85-100 neeg ntaus ib feeb. thiab nce ntawm ntau tshaj 200 bpm. tej zaum yuav qhia tau hais tias qhov siab tshaj plaws ntawm kev rho menyuam.