Yiziphi izinkomba ezicatshangelwayo ku-dopplerometry?
Uma kukhonjiswa i-dopplerometry, enqunyiwe kwabesifazane abakhulelwe, abesifazane abaningi banesithakazelo ezinkomba zesimiso. Ngaphandle kokulinda isiphetho sodokotela, omama abazayo bazama ukuthola imiphumela yocwaningo ngokwabo. Ungenzi lokhu, ngoba lapho kuhlaziywa impendulo, izici eziningi kufanele zicatshangelwe.
Ukuhlola ukugeleza kwegazi ngesikhathi se-dopplerometry kubesifazane abakhulelwe baqaphele izinkomba ezilandelayo:
- Inkomba yokusabela (IR) - umehluko phakathi kwe-systolic (ngesikhathi sokuvinjelwa kwenhliziyo) kanye namazinga e-diastolic (ukuphumula) okugeleza kwegazi;
- i-pulse index (PI) - isilinganiso sohlobo phakathi kwe-systolic ne-diastolic velocity kuya kwenani le-cardiac lejubane lesitsha esitholiwe;
- i-systolic-diastolic ratio (i-SDO) - isilinganiso segazi ukuhamba ngesivinini ngokusebenzisa izitsha ukuya kwisigaba se-systole ne-diastole.
Ukuhlolwa kwemiphumela ye-dopplerometry kanjani?
Izinkomba ze-dopplerometry ngayinye ezingaphezulu kwabesifazane abakhulelwe zihlolwe ngokwehlukana. Kulokhu, ukuxilongwa kwe-arteries kwenziwa ngezinye izindlela futhi ukugeleza kwegazi emithanjeni ye-uterine, umbilical, carotid kanye ne-cerebral, kanye ne-aorta, kubhekwe.
Isimiso sezinkomba ze-dopplerometry kwabesifazane abakhulelwe siyashintsha njalo, futhi kuxhomeke esikhathini sokukhulelwa.
Ngakho-ke, i-SDO emithanjeni ye-uterine, kusukela ngeviki lama-20 kuze kufike ngesikhathi sokuzalwa, yi-2.0.
I-LAD, futhi nge-PI, i-IR emithanjeni yezintambo zomzimba iyancipha kancane kancane kancane kancane phakathi nese-2 nengxenye yokukhulelwa.
I-SDO yamaviki ayishintsho kanje:
- Iviki 20-23 - 0,61-0,80;
- Iviki 24-29 - 0.57-0.77;
- Iviki 30-33 - 0.519-0.74;
- Iviki 34-37 - 0,49-0,7;
- Iviki le-38-41 lingu-0.40-0.68.
Inkomba yokuhlaselwa, futhi, iyashintsha ngesikhathi sokubeletha:
- Iviki 20-23 - 3.8-3.95;
- Iviki 24-29 - 3.3-3,5;
- Iviki 30-33 - 2,5-2,8;
- Iviki 34-37 - 2.4-2.6;
- Iviki 38-41 - 2,18-2,22.
Kodwa-ke, wonke umama ozayo kufanele aqonde ukuthi izinkomba ezinikeziwe zicatshangelwa ngokuhambisana nezici zenkambo yokukhulelwa. Ngakho-ke, akudingeki ukuthi kunqunywe ukucacisa izindinganiso ezitholakala ngenxa ye- doplerometry ngokuzimela .