Routine Foetal Morphology Scan (18-22 weeks of gestation)
A foetal morphology scan provides a comprehensive assessment of the baby's structure. While most scans reveal normal development, reassuring parents, they can also detect structural defects. Early identification of abnormalities allows for prenatal diagnosis, parents, obstetrician and paediatricians might be better prepared for the child's birth and, in cases of severe congenital defects, the option of pregnancy termination.
While not all congenital defects can be picked up by a routine morphology scan, it can detect around 70–80% of major congenital defects. The pick-up rate depends on a number of factors, including the severity and nature of the abnormality, the position of the foetus, maternal factors such as abdominal thickness or the presence of surgical scars, and the quality of the ultrasound machine. Also critical is whether the medical personnel have the experience or training in morphology scans.
Diagnostic ultrasound has been used since the 1960s. Based on numerous follow-up studies on children who were scanned before birth, there is no evidence that in-utero exposure of antenatal ultrasound is associated with any undesirable biological effects.
First Trimester
Gestational sac and yolk sac at 6 weeks
The crown-rump length of the embryo at 9 weeks
The crown-rump length of the fetus at 12 weeks
The nuchal translucency thickness in the first trimester
Facial profile in the first trimester
Fetal hand at 12 weeks
Male genital organ (arrow) at 12 weeks
Female genital organ (arrow) at 12 weeks
Second Trimester - Head and Face
Fetal brain in the second trimester
Fetal cerebellum at 17 weeks
Facial profile in the second trimester
Fetal nose and lips in the second trimester
Spine
Fetal spine in the second trimester
Abdomen
Cross-sectional view of the fetal abdomen
Umbilical cord insertion of the fetal abdomen
Fetal bladder
Two fetal kidneys
Heart
The 4-chamber view of fetal heart
The aortic outflow tract from the fetal heart
The pulmonary outflow tract from the fetal heart
The 3 vessels’view of the fetal heart
Aortic outflow tract with colour indicating the flow
Colour flow of both pulmonary artery and aorta
Limps
The fetal hand at 20 weeks
Gender
Male genital organ (arrow) at 18 weeks
Female genital organ (arrow) at 20 weeks
Happy Valley
- Address:
- 5/F, Li Shu Fan Block,
Hong Kong Sanatorium & Hospital,
2 Village Road, Happy Valley, Hong Kong
- Service hours:
-
Monday to Friday: 9:00 am - 5:00 pm
Saturday: 9:00 am - 1:00 pm
Closed on Sundays and Public Holidays
Consultation by Appointment
- Tel.:
- (852) 2835 7878
- Email:
- [javascript protected email address]
- Fax:
- (852) 2892 7581
- WhatsApp:
-
(852) 2835 7878
(For non-emergency cases)