Intermediate
Technical
IVT
antral follicle count
Also written as: AFC — antral follicle count
Ultrasound measurement of small ovarian follicles used to assess ovarian reserve.
Full Definition
A transvaginal ultrasound assessment that counts follicles measuring 2-10mm in diameter in both ovaries, typically performed early in the menstrual cycle. The antral follicle count is a key marker of ovarian reserve and helps predict response to ovarian stimulation in IVF cycles. Low counts may indicate diminished ovarian reserve, while very high counts may suggest polycystic ovary syndrome.
Usage
Usage note: Commonly abbreviated as AFC in clinical notes.
In Context
- "The antral follicle count of 15 suggested good ovarian reserve." — Ultrasound report
- "Baseline antral follicle count will guide stimulation protocol selection." — Treatment planning note
Also known as
AFC
baseline follicle count
Don't confuse with
total follicle count
mature follicle count