Seo lesea lena - TVP fetus - mong le e mong oa nakong e tlang a tla e fumana nakong ea bokhachane ho tloha ho leshome le motso o mong ho ea ho bekeng ea leshome le metso e mene. Fetal TVP ke tekanyo ea mokotla oa occipital. Ho sebelisa ultrasound, bophara ba sebaka se pakeng tsa letlalo le mahlaseli a bonolo a mokokotlo oa mokokotlo ho tiisitsoe. Ho eketseha ha sebaka sena ho bontša tsoelo-pele ea mafu a liphatsa tsa lefutso. Tloaelo ea TVP ea fetal ka beke e bontšoa tafoleng e ka tlase.
Hammoho le TB e fetalang ka libeke tse 12 ka ultrasound e etsa qeto ea ho ba teng ha lesapo la masapo, leo ka tsoelo-pele e tloaelehileng ea fetal, e lokelang ho theha ho fihlela bekeng ea leshome. Kaha bana ba nang le chromosomal pathologies ossification ba etsa butle-butle, ho ba sieo ha lesapo la nasal le hona ho ka bontša lefu lena.
| Nako ea bokhachane, libeke. | Botenya ba mohala, mm | ||
|---|---|---|---|
| 5th percentile | 50th percentile | 95th percentile | |
| Libeke tse 10. Matsatsi a 2 - libeke tse 10. Matsatsi a 6 | 0.8 | 1.5 | 2.2 |
| 11ed. Matsatsi a 2 - libeke tse 11. Matsatsi a 6 | 0.8 | 1.6 | 2.2 |
| Libeke tse 12. Matsatsi a 2 - libeke tse 12. Matsatsi a 6 | 0.7 | 1.6 | 2.5 |
| Libeke tse 13. Matsatsi a 2 - libeke tse 13. Matsatsi a 6 | 0.7 | 1.7 | 2.7 |
Matsatsing a latelang beke ea leshome le metso e mene, ho thata haholo ho fumana lefu lena, hobane tsamaiso ea lymphatic e qala ho sebetsana le ngoana le metsi a mangata a feteletseng.
Ho atolosoa ha TBE ho lesea
TBE e ntseng e eketseha lesea le e-na le bothata bo kang Down syndrome . Ho fumana hore na lefu lena ke lefe, tlatlisiso ena e etsoa. Ho lemoha boteng ba liphatsa tse ling tse sa tloaelehang tsa lefutso, etsa tlhahlobo ea ultrasound e feletseng.
Bakhachane ba nang le lilemo tse mashome a mararo a metso e mehlano ba na le kotsi ea ho ba le ngoana ea nang le mafu a liphatsa tsa lefutso. Ka hona, kamehla lingaka li khothalletsa hore ba hlahlojoe ke bokhachane ho etsa bonnete ba hore TVP ea lesea ke ea tlhaho. Ho ea ka litlaleho tsa lintlha, kotsi ea ho eketseha ha TBC ka pōpelong ea basali ba nang le bakhachane e lilemo li mashome a mararo a metso e mehlano ho 1: 1350, ho basali ba ka mor'a lilemo tse mashome a mararo a metso e mehlano ke 1: 1380, le basali ba fetang 40, 1: 100.