I-Ultrasound yindlela kuphela evumela ukuthi kutholakale ukukhulelwa okukhulayo ezinyathelweni zokuqala. Ukuhlolwa kokukhulelwa kungaba kuhle kokubili ukukhulelwa kwe-ectopic nokubandiswa, futhi emva kokusungulwa kwe-ultrasound, sekuvele kubonakala ekuqaleni kokukhulelwa okwenzekayo esibelethweni.
Yini ebonakalayo kwi-ultrasound ekuqaleni kwezinyathelo?
Kuze kube amasonto amathathu okukhulelwa nge-ultrasound, ukukhulelwa akukakabonakali, ngaphandle kokuthi ku-sensor yesisu. Kodwa uma owesifazane enesithakazelo sokulondoloza ukukhulelwa, khona-ke inzwa yesisu ingasetshenzisiwe ukuba ingabhubhisi ukukhulelwa kwesisu. Ngemuva kwamaviki amathathu ku-ultrasound evamile, iqanda lesisu elisesibusweni selivele libonakala (libukeka njengebhola elimnyama esibelethweni).
Ukuxilongwa kokuqala kokukhulelwa kwi-ultrasound
Ekuqaleni kokukhulelwa kwi-ultrasound esibelethweni, kuvele iqanda lomntwana:
- emavikini amathathu - 0.8 cm;
- emavikini angu-4 - 1.4 cm;
- emavikini angu-5 - 2.0 cm;
- emavikini angu-6 - 2.7 cm;
- emavikini angu-7 -3.4 cm;
- emavikini angu-8 - 4.0 cm;
- emavikini angu-9 - 4.7 cm,
- emavikini angu-10 - 5.3 cm,
- emavikini angu-11 - 6.0 cm;
- emavikini angu-12 - 6.7 cm;
- ngemuva kwamasonto angu-12 wokukhulelwa, ingane engenakulinganiswa.
Iqanda le-fetal kufanele libe sebelethweni. Uma uvivinyo oluhle lokukhulelwa emgodini wesifo sofuba lungatholakali, kufanele lufunwe emathinini amancane (nge-ectopic pregnancy).
I-embryo ye-ultrasound ekuqaleni kwezinyathelo
Ngaphezu kweqanda lesisu, kusukela ngesonto le-6 lokukhulelwa umbungu ubonakala, futhi iqalwa ukukala. Ngokuhambisana nobukhulu beqanda lesisu nesisu, amatafula athola isikhathi sokukhulelwa yi-ultrasound. I-embryo ilinganiswa ukusuka ku-parietal kuze kube ngethambo le-coccygeal ubude, izinyawo azitholakali ngalesi sikhathi, lobu bukhulu bubizwa nge-coccyx-parietal (KTP):
- kusuka emavikini ayisithupha kuya kwangu-7 okukhulelwa KTR 7-10 mm;
- kusuka emavikini angu-7 ukuya kwangu-8 KTR 11-15 mm;
- kusuka emavikini ayisishiyagalombili kuya ku-9 KTR 16-22 mm;
- kusuka emavikini angu-9 ukuya ku-10 KTR 23-31 mm;
- kusuka emavikini angu-10 kuya kwangu-11 KTR 32-41 mm;
- kusuka emavikini angu-11 ukuya ku-12 KTR 42-53 mm;
- kusuka emavikini angu-12 kuya ku-13 KTR 54-66 mm;
- kusuka emavikini angu-13 ukuya kwangu-14 KTR 67-80 mm.
Uma i-CTE ingaphezu kuka-80, ingabe ingalinganiswanga, futhi ubukhulu be-fetus buzovele buhlukile, ngaphandle kwetafula ukucacisa isikhathi sokubeletha. Ngaphezu kokulinganisa i-KTP, okufanele ikhulise ngenkathi yokukhulelwa, ukukhulelwa okukhulayo kunqunywa ukushaya kwenhliziyo kwe-fetus, evela emavikini angu-5-6, kubonakala ku-ultrasound emavikini angu-7-8 futhi kumele ibonakale kusukela emavikini angu-9 okukhulelwa embumbini ophilayo. Uma ukushaya kwenhliziyo kungakaqali ngaphambi kwamasonto angu-9, ungakwazi ukubeka i-ultrasound yokulawula ngemva kwezinsuku ezingu-10, uma ingabuyekezwa, ngaphandle kwalokho, i-KTP neqanda lomntwana akukhulisi - ukukhulelwa kubanda.
Ekusebenziseni i-US esiteji sokuqala sokukhulelwa namaviki ayisikhombisa kuchaza ukuhamba kokuqala kwesithelo. Ekuqaleni kungukungalingani okungafani, kusukela emavikini angu-8 ukuhamba kwe-trunk, futhi kusukela emavikini angu-9-10 - ukunyakaza nokwandiswa kwamalungu.
Ngaphezu kwezikhulu ezikhulunywe ngenhla, uma wenza i-ultrasound esiteji sokuqala sokukhulelwa, ubukhulu besisu (ubude, ububanzi nobukhulu) bulinganiswa, buhlola isimo sayo. Kulesi simo, phawula ukuthi kuneziphazamiso zesigaba esibelethweni, isosha lomkhuhlane we-fetal, noma yikuphi ukubunjwa kwesibeletho kanye nama-ovari, izingxenye zombelethi. I-fetus ilinganisa ubukhulu bomkhuhlane womlomo wesibeletho (ukuxilongwa kwe-Down syndrome ekuqaleni), ubukhulu be-chorion (i-placenta yesikhathi esizayo).
I-Ultrasound emanzini okuqala inezici zayo ezikhethekile: kuze kube amasonto ayisithupha, iqanda elilodwa emgodini we-uterine noma ngaphezulu kunqunywa. Uma kuvela imibungu, balandela ngokulandelana ukuthuthukiswa komunye wabo. Uma ezinyangeni zokuqala zeqanda lokubeletha lilodwa, futhi kusuka emavikini angu-7 kunemibungu emibili, bese uhlola ukuthi bangamaqanda amangaki kanye ne-chorion. Uma iqanda lokubeletha ne-chorion lingesinye, izithelo zihlolisiswa ngokunamathela, ngesikhathi esifanele - ngenxa yokungabi khona kwezinkinga.
Kukhona umbono wokuthi i-ultrasound ekuqaleni kuyingozi, ikakhulukazi ngoba izicubu zesisu ziyakwazi ukufudumala nokulimala. Ikakhulukazi lokhu kusebenza kuma-tissue acebile (okufana nobuchopho bomntwana ozayo). Kodwa i-ultrasound isivele isesimweni sokuqala yembula ukukhubazeka okukhulu, okuningi okungahambisani nokuphila kwengane engakazalwa.