title: Ultrasound-guided trial transfer may be beneficial in preparation for an IVF cycle.
abstract: BACKGROUND
  The objective of this study is to determine if ultrasound-guided trial transfer (UTT) in the office in preparation for an IVF cycle can be utilized as an alternative and/or adjunct to ultrasound-guided embryo transfer (UGET).
  
  
  METHODS
  Patients planning to undergo an IVF cycle at an academic centre were included. Each patient underwent an UTT in the office by the same practitioner. The difference in length (DL), if any, was measured from the perceived top of the uterine cavity (catheter tip) to the actual cavity apex as visualized by ultrasound.
  
  
  RESULTS
  Of the 64 patients enrolled, 19 patients (29.7%) had a measurable DL, of which 14 (21.9%) had a DL exists 0.5 cm, and nine (14.1%) had a DL exists 1.0 cm. Significant differences were noted between patients when comparing DL to previous pregnancy status and the total cavity depth (sounding depth + DL) (P < 0.05).
  
  
  CONCLUSIONS
  UTT in the office setting appears to be beneficial in preparation for an IVF cycle with embryo transfer.
authors: The Center for Reproductive Medicine and Infertility, Weill Medical College of Cornell University and The New York Presbyterian Hospital, New York 10021, USA.
authors: Mousa I
authors: MI
authors: Shamonki
authors: Glenn L
authors: GL
authors: Schattman
authors: Steven D
authors: SD
authors: Spandorfer
authors: Pak H
authors: PH
authors: Chung
authors: Zev
authors: Z
authors: Rosenwaks
mesh_terms: D000328:Adult; D000367:Age Factors; D015992:Body Mass Index; D002986:Clinical Trials as Topic; D010064:Embryo Implantation; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D006801:Humans; D008297:Male; D011247:Pregnancy; D011256:Pregnancy Outcome; D018873:Pregnancy Rate; D016896:Treatment Outcome; D014463:Ultrasonography / Q000379:methods*; D014599:Uterus / Q000033:anatomy & histology / Q000000981:diagnostic imaging*