cervical length

In obstetric and gynecological imaging, the cervical length is defined as the distance between the internal cervical os and the external cervical os.

Radiographic assessment

Ultrasound

• the cervical length is most accurately assessed on a transvaginal scan with an empty bladder
• in a normal gravid situation, the cervical length is considered to be at least 30 mm (3 cm)
• the presence of a full bladder can increase the cervical length particularly on a trans-abdominal scan

See also

• cervical incompetence
• short cervical length
• cervical funnelling

Siehe auch:

• cervical incompetence
• shortening of the cervical canal

und weiter:

• obstetric curriculum
• cervical funneling