TTD in pregnancy can refer to Fetal Transverse Trunk Diameter.
Fetal Transverse Trunk Diameter (TTD) Explained
The fetal transverse trunk diameter (TTD) is a measurement used in obstetric sonography to assess fetal development. It's a measurement of the width of the fetal trunk.
- How it's measured: The TTD is measured using ultrasound.
- When it's measured: According to the provided reference, TTD measurements were taken between the 14th and 40th weeks of pregnancy.
- Purpose: It helps in assessing fetal growth and development. Comparing TTD measurements with expected ranges for gestational age can help identify potential growth abnormalities.
The provided reference details a study where obstetric sonographers measured TTD in 235 women during normal pregnancies using Aloka ultrasound models. They performed 1,009 measurements. This data can be used to establish reference ranges for TTD during normal pregnancies.
