Common protocols for surveillance usually provide for weekly ultrasound for the first fortnight while subsequent scans can be fortnightly if there is evidence of clinical resolution.
Isuog practice guideline has established guidelines for dating and the catch dating of pregnancy and.
Were developed from collaborative documents with the american college of radiology and the american institute of ultrasound in medicine 1, 2.
Here you will get the third plane for the mean sac diameter.
There have been concerns regarding the value of cervical length screening in twin gestations where the sensitivity is low and the available prophylactic interventions had limited evidential support.
The Quintero stage is only partially associated with prognosis.
Description: Equipment When using the patient's last menstrual period to establish pregnancy dating, Naegele's rule requires the use of a calendar.