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One technique that is particularly useful in the office
evaluation of abnormal uterine bleeding is sonohysterography, or
fluid-enhanced ultrasound.
A thin catheter is introduced through the cervix and
into the uterine cavity. Then, transvaginal ultrasound scanning is
performed while sterile saline is injected through the catheter into the
cavity. This separates the uterine walls and outlines any intrauterine
masses, such as polyps or fibroids. The uterine lining can also be
carefully evaluated for thickening or projections.
Once identified, these abnormalities can be removed
through D&C. Conversely, those whose cavities and lining are normal will
not usually not benefit from D&C or hysteroscopy as no abnormality will
be found.
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