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ISUOG Guidelines
for the 18 – 23 week anomaly scan
From Diagnosis of
fetal abnormalities
The 18 – 23 week
scan
Gianluigi Pilu,
Kypros H Nicolaides, Renato Ximenes, Phillipe Jeanty
Link to
Anomaly
Scan Pictograms, with compliments of Dr I Erasmus
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Skull
Examination of
integrity and normal shape, and measurement of biparietal diameter
and head circumference
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Brain
Examination of
cerebral ventricles, choroid plexuses, mid-brain, posterior fossa
(cerebellum and cisterna
Magna), and
measurement of the anterior and posterior horns of the lateral
ventricles
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Face
Examination of the
profile, orbits and upper lip
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Neck
Measurement of nuchal
fold thickness
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Spine
Examination both
longitudinally and transversely
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Heart
Examination of rate
and rhythm, four-chamber view, and outflow tracts
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Thorax
Examination of the
shape of the thorax, the lungs and diaphragm
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Abdomen
Examination of the
stomach, liver, kidneys, bladder, abdominal wall and umbilicus, and
measurement of abdominal circumference
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Limbs
Examination of the
femur, tibia and fibula, humerus, radi
us and ulna, hands and
feet (including shape and echogenicity of long bones and movement of
joints), and measurement of femur length
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Link to
Anomaly
Scan Pictograms, with compliments of Dr I Erasmus |
