This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Funneling of the internal cervical os

Radswiki and Dr Frank Gaillard et al.

Cervical funneling is a sign of cervical incompetence and represents the dilatation of the internal part of the cervical canal and reduction of the cervical length.

Greater than 50 % funneling before 25 weeks is associated with approximately 80 % risk of preterm delivery.

Radiographic assessment

Good scanning technique is essential, as excessive pressure with the probe, or presence of a distended bladder may artificially narrow the canal.

Measurement

percentage funnelling : funnel length / ( functional cervical length + funnel length)

This article is a stub, which means it needs more content. You can contribute to Radiopaedia.org too. Just register and edit... every little bit helps.