Cervical incompetence morphological changes on ultrasound (mnemonic)

Sequential morphological ultrasound changes of the endocervical canal with cervical incompetence can be remembered using the mnemonic:

• Trust Your Vaginal Ultrasound

Mnemonic

• T-shaped (normal internal cervical os)
• Y-shaped
• V-shaped 
• U-shaped

Related article

• cervical incompetence
• funneling of the internal cervical os