Reference ranges for fetal middle cerebral artery velocity time integral

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20260226004

Enrollment

324

Registered

2026-02-26

Start date

2026-03-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low risk pregnancies at 18 to 36 weeks of gestation MCA-VTI, middle cerebral artery, velocity time integral, fetal, Doppler

Interventions

Women aged at least 18 years with a singleton pregnancy at 18+0 to 36+6 weeks of gestation, with no underlying medical conditions or complications, and normal fetal growth.

Screening

Pregnancy

Eligibility

Sex/Gender

Female

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. women aged of at least 18 years with a low risk singleton pregnancy at 18+0 to 36+6 weeks of gestation 2. no underlying medical conditions or complications 3. normal fetal growth.

Exclusion criteria

Exclusion criteria: 1.A history of fetal anemia, a peak systolic velocity of the fetal middle cerebral artery (MCA-PSV) of at least 1.5 multiples of the median (MoM) 2. pregnancies with a diagnosis of structural or genetic abnormalities.

Design outcomes

Primary

Measure	Time frame
normal ranges for fetal MCA-VTI Antenatal care Doppler ultrasound	—

Secondary

Measure	Time frame
Population Demographics Antenatal care Record Data	—

Countries

Thailand

Contacts

Public ContactSamita Seetho

Khon Kaen University

smstsamita@gmail.com043363030

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026