Ucwaningo lwe-ultrasound, oludingeka lwenziwe owesifazane okhulelwe ngesikhathi sonke sokubeletha, ngumthombo owodwa wemininingwane engathembeki mayelana nesikhathi sokukhulelwa, ukukhula nokuthuthukiswa kwe-fetus, ukutholakala kwamathambo noma ukukhubazeka kwayo, njalonjalo. Kungenxa yale njongo ukuthi i-fetometry yenziwa, okungukuthi, ukusungulwa kobukhulu bekhanda bomzali, okuyinto enesithakazelo kubafazi bamazinyo kanye nezidakamizwa kwanoma yikuphi ukubonisana kwabesifazane. Le nkomba ibhekwa ngokufanele njengenye yezinto ezibaluleke kakhulu, futhi inqunywe kunoma iyiphi inkambo yokubeletha. Kodwa-ke, akuwona wonke owesifazane ozwakala ngokugcwele ukuthi lokhu yi-BDP ye-fetus, kungani lezi zedatha zidinga, yiziphi izimo ezikhona nokunye.
Iyini usayizi we-biparietal we-fetus?
Lezi zindatshana zitholakala ngama-waves agciniwe esikrinini se-ultrasound, ezifana nezinga le-ventricle yesithathu yobuchopho. I-BDP ngesikhathi sokukhulelwa ibonisa ibanga langempela nelikhulu kunazo zonke phakathi kwezindonga ezikhona zamehlo omqhele we-skull wengane. Lokhu kusho ukuthi ulinganisa ubukhulu bekhanda lomntwana futhi, ngenxa yalokho, kubonisa ukubhaliswa kwezwe kanye nezinga lokuthuthukiswa kwesistimu yezinzwa kanye nesikhathi sokubeletha.
Ubukhulu be-biparietal noma i-BPD kuyadingeka ukuqinisekisa ukuthi kuphephile kokubili ingane kanye nomama, ukuhamba ngendlela yomsele wokuzalwa nokukhethwa kohlobo oluhle kakhulu lokulethwa kanye namaqhinga abasebenzi bezokwelapha ngenkathi kususwa umthwalo. Uma i-ultrasound ye-fetus BDP ibonisa ukungalingani okuphawulekayo phakathi kobukhulu bekhanda nomsele wokuzalwa womama, okungenzeka ngenxa yezizathu ezihlukahlukene, isigaba sokulinda esilungisiwe sibekiwe .
Izindlela zeBDP zamasonto
Kunezikhombisi-ndlela ezibizwa ngeviki zonke zeBDP, ezakhiwe ngokukhethekile ngesikhathi ngasinye sokubeletha, okusiza kakhulu ukuxilongwa. Izifundo zingenziwa ngesandulela sokuqala, kodwa ulwazi olunokwethenjelwa mayelana nokuhambisana nentuthuko yengane ngenkathi yokubeletha kutholakala ku-trimester yesibili noma yesithathu yokukhulelwa.
Ukuze uqonde ukuthi yisiphi isisindo se-biparietal ye-fetus nokuthi ngabe ihambelana nemiphumela yakho ngemigomo ejwayelekile emisiwe, kuyafaneleka ukuzijwayeza ithebula lapho idatha yeBDP ihanjiswa khona ngesonto ngalinye. Lezi zibhebhe zivele zifakwe ohlelweni lomshini we-ultrasound futhi kusisekelo sabo ukuthi isiphetho sakhishwa. Opharetha noma udokotela ukhetha ngokuzenzakalelayo uhlobo oludingekayo lwedatha futhi alubeka ngokuqondile ngaphambi kokufunda ngokwayo. Ungethuki ngokushesha uma imiphumela yokugcina ingekho kahle, njalo ukushintshashintsha kwemingcele ethile. Ukutholakala kokugcina ukuthi ngabe i-BDP evamile ihambisana nesikhathi sakho sokubeletha. Isibonelo, i-BPR ye-18 mm ilingana neyesonto le-11 neyeshumi nambili lokukhulelwa.
Izici zalokho okushiwo i-BDP kwi-ultrasound
Ukuhlanganiswa kwencwadi enjalo njengobungako obuseduze nangokwemvelo nge-BPR idatha kuvumela ukwahlulela ukuthi yiliphi izinga lokuthuthukiswa kwe-fetus nokuthi ukukhulelwa empeleni kwenzekani ngempela. Phela, kusukela ngesikhathi sokubeletha ukuthi ukuhlolwa okujwayelekile kwezinga lokuthuthukiswa kwengane kuqala, kungakhathaliseki ukuthi ugcwele noma cha. Ubungako be-BDP wamasonto buhlinzeka udokotela ngolwazi oludingekile ukusiza ukusungula isimo nobukhulu bobuchopho ngokususelwa kumthamo we-cranium futhi, ngenxa yalokho, uhlelo lonke lwezinzwa zomntwana.
Ukuzibonakalisa kwalesi sibonakaliso ukuthi idatha eveza ukukhula kwayo iyancipha njengoba ingane ikhula. Ngakho-ke, isibonelo, i-BDP emavikini angu-12, futhi ikakhulukazi ukukhula kwayo, cishe ngamamitha ayi-4 ngesonto. Ekupheleni kwesikhathi sokubeletha, isibonakaliso se-BDP emavikini angu-33 sesivele sesiphezulu esingu-1.2 noma 1.3 mm.
Ngakho-ke, ukuqonda okulungile lokho okushiwo ubukhulu be-fetal biparietal nokuthi kusho ukuthini ngesikhathi bese uhlola ngokugcwele izinga lokukhula nentuthuko ye-fetus esibelethweni sesisu.