A follicular volume of >0.56 cm at trigger is the cutoff to predict oocyte maturity: a starting point for novel volume-based triggering criteria.

Objective: To determine the minimum follicular volume on the day of trigger that will correspond to a mature oocyte at egg retrieval by individualized follicular puncture and to calculate the mean follicular growth from ovulation induction to egg retrieval using SonoAVCfollicle.

Design: A prospective observational study of 53 women undergoing in vitro fertilization, in which it was possible to identify unequivocally one or more follicles at trigger and egg retrieval using three-dimensional ultrasound.

Setting: University-affiliated private in vitro fertilization center.

Volume-based follicular output rate improves prediction of the number of mature oocytes: a prospective comparative study.

Objective: To test whether volume-based follicular output rate (FORT-V) is superior to diameter based follicular output rate (FORT-D) in predicting the number of mature oocytes. The follicular output rate (FORT) is the ratio between preovulatory follicle count (PFC) and antral follicle count (AFC) and has been proposed as a better predictor of the ovarian response compared with AFC alone.

Design: A prospective observational study of 215 consecutive women (80 oocyte donors and 135 in vitro fertilization [IVF] patients) undergoing ovarian stimulation for IVF.

Follicular Volume Predicts Oocyte Maturity: A Prospective Cohort Study Using Three-Dimensional Ultrasound and SonoAVC.

The aim of this study was to investigate whether the automatic measurement of follicular volume by three-dimensional (3D) ultrasound can predict the number of mature oocytes retrieved. A prospective cohort study including 47 women undergoing in vitro fertilization was conducted in a private fertility center. Follicular growth was monitored both manually and automatically using 3D scanning with SonoAVC on the day of human chorionic gonadotropin (hCG) administration.

Prospective evaluation of automated follicle monitoring in 58 in vitro fertilization cycles: follicular volume as a new indicator of oocyte maturity.

Objectives: To assess the practical use of SonoAVC in an IVF program, and to establish new criteria for hCG administration based on follicular volume.

Design: Prospective clinical study.

Setting: Private IVF Center.