Early ultrasound gestational age dating

04-Mar-2019 04:24

The authors examined whether early ultrasound dating (≤20 weeks) of gestational age (GA) in small-for-gestational-age (SGA) fetuses may underestimate gestational duration and therefore the incidence of SGA birth.

Harland, Injury Prevention Research Center and Department of Epidemiology, University of Iowa, 200 Newton Road, 2188 WL, Iowa City, IA 52242-5000 (e-mail: [email protected]).

The scan can confirm the number of babies in the uterus, the embryo can be observed and measured by about five and a half weeks and a heartbeat usually detected by 6 weeks.

This scan is the most significant one undertaken during pregnancy, because it can reassure the parents that everything appears to be as it should be.

If a potential problem is indicated, a further follow up scan may be needed.

The Royal College of Obstetricians & Gynaecologists (in their 2000 document on Ultrasound Screening), recommend an Early Pregnancy Scan, undertaken before 15 weeks, which can combine the functions of the Early Viability Scan, Nuchal Translucency Scan and dating scan. These two scans are the ‘minimum’ number of scans required during pregnancy and are offered by ¾ of ultrasound units in the UK.

Individual circumstances may dictate that more scans may be offered and a breakdown of what you could receive is detailed below.

The scan can confirm the number of babies in the uterus, the embryo can be observed and measured by about five and a half weeks and a heartbeat usually detected by 6 weeks.

This scan is the most significant one undertaken during pregnancy, because it can reassure the parents that everything appears to be as it should be.

If a potential problem is indicated, a further follow up scan may be needed.

The Royal College of Obstetricians & Gynaecologists (in their 2000 document on Ultrasound Screening), recommend an Early Pregnancy Scan, undertaken before 15 weeks, which can combine the functions of the Early Viability Scan, Nuchal Translucency Scan and dating scan. These two scans are the ‘minimum’ number of scans required during pregnancy and are offered by ¾ of ultrasound units in the UK.

Individual circumstances may dictate that more scans may be offered and a breakdown of what you could receive is detailed below.

If this does occur, the possible complications of or implications for the pregnancy will be fully discussed with the parents by a doctor or consultant and advice and guidance will be provided.