Singleton low risk pregnant women Nomogram, Reference range, Systolic-to-diastolic time index, Systolic-to-diastolic ratio, ultrasound
Conditions
Interventions
Transabdominal ultrasound by spectral and tissue Doppler study
Nomogram of systolic-to-diastolic time index and ratio by spectral and tissue Doppler ultrasound
Sponsors
Faculty of medicine, Prince of Songkla University
Eligibility
Sex/Gender
Female
Age
20 Years to No maximum
Inclusion criteria
Inclusion criteria: -Singleton low risk pregnant women more than 20 years old -Gestational age 16-39+6 weeks
Exclusion criteria
Exclusion criteria: -Maternal complications -No data of postpartum conditions -Congenital anomalies -Abnormal chromosome -Abnormal Growth -Decreased or increased amniotic fluid volume -Postpartum anomaly was seen -Prolong procedure more than 15 minutes
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Nomogram of systolic-to diastolic time index and ratio within 6 months after end of the intervention Patient was measured by spectral and tissue Doppler ultrasound | — |
Secondary
| Measure | Time frame |
|---|---|
| intra-inter observer variability within 6 months after end of the intervention Patient was measured by spectral and tissue Doppler ultrasound by investigator 1 and investigator 2 | — |
Countries
Thailand
Contacts
Public ContactPongkan Nayanet
Prince of Songkla university
Outcome results
None listed