Yintoni ubukhulu biparietal?
Ubungakanani biparietal yentloko yengane (okanye i-BDP ye-fetus), itafile apho ugqirha onobuchwephesha bokuxilongwa kwe-ultrasound kufuneka azi, yenye yeenkcukacha ezichanekileyo zengqondo yokudala. Yigqitywe yimiphumo ye-ultrasound. Inani eliphezulu lokufundisa eli khonkco liyabonwa kwiiveki ezi-12 ukuya ku-28 zokukhulelwa.
I-BDP - umgama phakathi kwemida yangaphakathi kunye neyangaphandle yamathambo e-parietal, oko kukuthi, umgca odibanisa i-contours yangaphandle yamathambo e-parietal. Kumele kudlule i-thalamus. Le yinto ebizwa ngokuthi "ububanzi" yentloko, ekulinganiselwe esuka etempileni ukuya ethempelini kunye ne-axis encane.
Ngaliphi na ixesha lokugaya, kukho inani elithile lenkcazo ephantsi kokuqwalaselwa kwinto eqhelekileyo. Njengoko ukukhulelwa kukhula, esi sibonakaliso sanda, kodwa ekupheleni kwesigxina sokukhula kwezinga lokunyuka kwayo kuncitshiswa kakhulu. Ukuphambuka kwimimiselo eyamkelweyo ivame ukukhokelela ekuphazamiseni iziphumo ezifunyenweyo, ngenxa yokuba ixesha lokukhulelwa lichanekile ngokuchanekileyo.
Itheyibhile yobukhulu bebiparietal yentloko yentloko
Ngezantsi kwetafile yeBDP. Ibonisa iingongoma zesohlwayo ukusuka kwiiveki ezi-11 ukuya kuma-40 zesigxina, kuba ngeli xesha iingcali ze-ultrasound zilinganisa kwisifundo ngasinye.
Olu lathiso alufanele lucatshangelwe ngokuzimela, kodwa kunye nobukhulu be-occipital size. Ziyalinganiswa kwelinye indiza kwaye ziyahluka ngokumalunga nexesha lokuphuhlisa i-intrauterine. Ukuze uchaneke ngokuthe tye, ujikelezo lwesisu kunye nobude bethanga luyalinganiswa.
Ukulinganiswa kwe-BDP kuvumela ukuchonga iingxaki ezithile ekuphuhliseni umntwana, oko kukuthi: ukukhawuleza kokukhula kwe-intrauterine, i- hydrocephalus, ubunzima obunzima bentsana (ukuba le nto idlulile) okanye i- microcephaly (ukuba ayinako). Kule meko, iziphumo zenye imilinganiselo ziyakuthi ziqwalaselwe.