Ovary Volume Formula:
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Definition: This calculator estimates the volume of an ovary using ultrasound measurements based on the ellipsoid formula.
Purpose: It helps medical professionals assess ovarian size and volume, which is important in fertility evaluation and gynecological diagnosis.
The calculator uses the ellipsoid formula:
Where:
Explanation: The formula approximates the ovary as an ellipsoid shape, which is the standard method for ovarian volume calculation in ultrasound.
Details: Ovarian volume assessment is crucial for evaluating polycystic ovary syndrome (PCOS), ovarian reserve, follicular monitoring, and detecting ovarian abnormalities.
Tips: Enter the three orthogonal measurements (length, width, height) obtained from ultrasound imaging. All values must be > 0.
Q1: Why use the ellipsoid formula?
A: The ellipsoid formula provides a good approximation of ovarian volume as ovaries typically have an oval shape in ultrasound imaging.
Q2: What are normal ovarian volume ranges?
A: In premenopausal women, normal ovarian volume is typically 5-20 cm³, while postmenopausal ovaries are usually <10 cm³.
Q3: How accurate is this calculation?
A: The formula provides a good estimate but may vary slightly from actual volume due to ovarian shape variations.
Q4: When should I be concerned about ovarian volume?
A: Volumes >20 cm³ in premenopausal women or >10 cm³ in postmenopausal women may warrant further investigation.
Q5: Can this calculator be used for other organs?
A: Yes, the ellipsoid formula can be used for other similarly shaped organs like testes or certain tumors.