Ultrasonic signs of imminent ovulation.
Two consistent signs of imminent ovulation in the Graafian follicle have been identified using ultrasound. These signs are a line of decreased reflectivity around the follicle and a crenation pattern within the follicle. The signs may be useful in programs such as in vitro fertilization and artificial insemination, in which timing of ovulation is critical.
D005260:Female; D006801:Humans; D006080:Ovarian Follicle / Q000502:physiology; D010061:Ovulation Detection / Q000379:methods*; D011247:Pregnancy; D014463:Ultrasonography