Short cervix detection in pregnant women by transabdominal sonography with post-void technique
ConclusionTransabdominal sonography with vertical bladder depth of less than 5 cm performed better compared with transvaginal sonography. It may not be necessary to perform transvaginal sonography if transabdominal sonography reveals the cervical length to be more than 2.5 cm.
Source: Journal of Medical Ultrasonics - Category: Radiology Source Type: research