USG is an effective, safe, inexpensive, radiation free, non-invasive and readily available tool.Role of ultrasound in female infertilityUltrasound is used to evaluate the pelvic organs (uterus and ovaries), growing ovarian follicles, and cyclic uterine endometrial changes.Evaluation of uterus :A) Structural anatomy — Using both 2D and 3D ultrasound congenital mullerian anomalies can be diagnosed and classified according to ESHRE/ESGE classification of uterine anomalies.B) Pathologies:1) Fibroid : seen in 5–10% of infertile women.
Distortion of the endometrial cavity, abnormal endometrial receptivity, altered hormonal milieu, and endometrial development are the causative factors for infertility in fibroids.USG provides the number, exact location and size of fibroids, thus helps in thorough planning of surgical intervention if necessary.2) Adenomyosis : Adenomyosis results in structural and functional defects of the uterine junctional zone and thus resulting in disturbed uterine peristalsis and sperm transport, increased inflammatory response in the endometrium causing impaired implantation.
All these factors contribute to sub fertility and increased risk of miscarriage in Adenomyosis.The ultrasonographic features of Adenomyosis are globular uterus, asymmetrical myohyperplasia, rain shower appearance and myometrial cyst.Endometrium :Is a dynamic structure undergoing cyclical changes.
Pathological features such as thin endometrium, poor endometrial blood flow, presence of polyp or intrauterine adhesions can result in sub fertility.
And all these pathologies are accurately assessed using USG (both 2D + 3D).Ovary :USG is used for diagnosis and monitoring of treatment cycle in sub fertile women.1) Follicular monitoring : Is an integral part of investigation in subfertile women.
Serial scans during follicular phase evaluates the growth of the follicle, estimates the time of follicular rupture, the ideal time to trigger ovulation and occurrence of ovulation.2) Antral follicular count: Estimated on day 2 of menstrual cycle, follicles of 2- 8 mm size measured and counted in each ovary.