[Sonographic studies of patients with postmenopausal hemorrhage (endometrium/myometrium index)].

Ultrasonographic examination was performed in 120 patients with post-menopausal bleedings before a diagnostic curettage. In comparison with the final histological diagnoses the sonographic diagnoses were found to be correct in 97 patients (86.2% right-negative; 79.7% right-positive). The proportion of false-negative and false-positive results was found to be 12.1% and 16.9% respectively. Specificity and sensitivity values were 83.3% and 87.1%. The endometrium/myometrium-index enabled us to make a good judgment of the endometrium, since it considers both the endometrial and myometrial thicknesses simultaneously. This index was found to be below 0.5 (0.27) in those patients with normal sonographic findings and in patients with pathological sonographic findings it was found to be 1.3. Ultrasound is therefore a non-invasive diagnostic aid for the diagnoses of pathological changes of the endometrium.