Ovarian cancer is relatively rare but fatal with an annual incidence rate of 11.8 per 100 000 and a high mortality-to-incidence ratio of >0.6. The modest diagnostic accuracy of TVU has risen some concerns about the over-treatment.Now, with the development of artificial intelligence (AI), we may have a better chance to interpret TVU imagines with high efficiency, reproducibility and accuracy.

Inclusion Criteria:

• Women scheduled for Transvaginal Ultrasound examination for adnexal lesions;
• Women aged over 18 years old;
• Women willing to participant in this study evidenced by signing the informed consent.

Exclusion Criteria:

• Women without adnexa for any reasons at the time of Transvaginal Ultrasound examination, including but not limited to receiving surgical removal for adnexa;
• Women with a pathologic diagnosis of ovarian cancer before the Transvaginal Ultrasound examination;
• Women with mental abnormal;
• Women did not cooperate or participate in other clinical trials;
• Pregnant or lactating women.

contact Prof. Gao for detailed study protocol or data after the study completed by e-mail

6 months after the study completed

all investigators in this study field can contact Prof. Gao for access by e-mail