Transvaginal Ultrasonography for Postmenopausal Uterine Evaluation
Summary
Transvaginal ultrasonography has become the principal non-invasive technique for assessing the postmenopausal uterus. By positioning a high-frequency probe within the vaginal canal, clinicians obtain detailed measurements of endometrial thickness, morphological features and vascular patterns. This method is widely employed both to investigate postmenopausal bleeding and to characterise incidental endometrial changes detected during pelvic imaging for other indications. A thin, uniform endometrial echo complex typically indicates low risk, whereas increased thickness or irregular borders prompt further diagnostic steps, such as hysteroscopic inspection and targeted biopsy. Power Doppler assessment of blood-flow helps distinguish benign lesions, such as polyps or fibroids, from suspicious focal pathologies. International consensus guidelines recommend standardised descriptors for endometrial echogenicity, border regularity and vascular distribution, enhancing interobserver agreement. Globally, the adoption of transvaginal ultrasound supports early detection of endometrial malignancy—the most common gynaecological cancer in postmenopausal populations—while refining patient selection for invasive procedures. Advances in image resolution and emerging computer-aided analysis are poised to improve diagnostic accuracy, reduce unnecessary interventions and expedite management of high-risk cases.
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Transvaginal Ultrasonography for Postmenopausal Uterine Evaluation publication trend
The graph below shows the total number of articles in transvaginal ultrasonography for postmenopausal uterine evaluation across all publications each year (not limited to Nature Index journals).
Technical terms
Transvaginal ultrasonography: An imaging technique using a specialised vaginal probe to obtain high-resolution views of the uterus and endometrium.
Endometrial thickness: The measurement, in millimetres, of the uterine lining’s double-layered echo complex, used to assess risk of hyperplasia or malignancy.
Power Doppler: An ultrasound mode that visualises blood-flow intensity within endometrial or myometrial vessels to aid differentiation of benign and malignant lesions.
Cut-off value: A predefined measurement threshold used to guide clinical decisions on further diagnostic or therapeutic interventions.
References
- The Role of Ultrasound in Diagnosing Endometrial Pathologies: Adherence to IETA Group Consensus and Preoperative Assessment of Myometrial Invasion in Endometrial Cancer. Diagnostics (2025).
- Sensitivity of transvaginal ultrasound screening for endometrial cancer in postmenopausal women: a case-control study within the UKCTOCS cohort. The Lancet Oncology (2010).
- Value of endometrial thickness for the detection of endometrial cancer and atypical hyperplasia in asymptomatic postmenopausal women. BMC Women's Health (2022).
- Asymptomatic endometrial thickening in postmenopausal women: predictor of malignant pathology?. Journal of Obstetrics and Gynaecology (2022).
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