Echographic Study of Follicular Maturation and Ovulation During the Normal Menstrual Cycle

Improvement of cervical mucus viscoelasticity and sperm penetration with sodium bicarbonate douching

“…Ultrasonographic prediction signs described in the literature include the appearance of an echodense structure on the inner side of the follicular wall, and a line of reduced reflectivity around the follicle (Picker et al, 1983). The mean preovulatory follicle diameter, however, varies considerably (Renaud et al, 1980). Although no large study is available in the literature concerning the predictive value of ultrasonographically measured follicle size, we have used this parameter, with the other ultrasonographic criteria, for the prediction of ovulation in the individual patient.…”

Growth rates of ovarian follicles during natural menstrual cycles, oral contraception cycles, and ovarian stimulation cycles

“…Ultrasonographic evaluations of follicle development and ovulation were documented during the menstrual cycle (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). Transabdominal ultrasonographic evaluations of follicle growth were then used to complement hormonal estimations of ovarian status in women undergoing ovulation induction for the treatment of infertility (21)(22)(23)(24)(25)(26)(27)(28).…”

“…Follicles have been reported to grow in a linear fashion during the menstrual cycle (43). Growth rates varying from 1-4 mm/day have been documented, with some researchers reporting increases or decreases in the growth rates of ovulatory follicles in the few days leading up to ovulation (2,10,12,13,19,26,29,30,(43)(44)(45). Follicular growth rates of 1 mm/day have been reported during oral contraception (OC) cycles (46), and 1-3 mm/day during ovulation induction cycles (21,22,24,25,28,41,47,48).…”

Follicular growth pattern in normal-cycling Brazilian adolescents

“…A linear growth rate of 2 to 3 mm/d has been assumed from the time that the dominant follicle becomes visible ultrasonographically or after its first appearance (50,51). This growth rate refers to the dominant follicle's growth after it reaches 8 to 10 mm in diameter.…”