Our purpose was to determine whether intrauterine sonography with high-frequency, real-time miniature transducer (20 MHz) is useful for the diagnosis of gynecologic disorders. The study consisted of 37 women: 8 normal volunteers, 2 with molar pregnancy, 4 fibromyoma, 4 endometrial polyp, 1 intrauterine adhesion, 1 septate uterus, 5 atypical hyperplasia, 8 endometrial cancer, and 4 with cervical cancer. Comparison of diagnostic efficacy for gynecologic disorders between transvaginal and intrauterine sonography was made. The probe was easily introduced into the endometrial cavity in all patients. No notable complications were encountered. In subjects with a normal uterus, higher resolution for endometrial texture was obtained with intrauterine sonography than with transvaginal scanning. In patients with molar pregnancy, typical vesicular echos were clearly identified. In patients with fibromyoma, myoma nodules were not clearly visualized because of poor attenuation of ultrasound. In subjects with endometrial polyp, intrauterine adhesion, and septate uterus, intrauterine lesions were clearly identified. In patients with atypical hyperplasia, high echogenicity of the endometrium was characterized. Myometrial invasion of the endometrial cancer was estimated correctly in 6 of 8 patients (75%). Intrauterine sonography could clearly detect early cervical invasion of the cervical cancer in all 4 patients, but transvaginal sonography could not do it. Intrauterine sonography with a high-frequency, real-time miniature transducer might be a useful diagnostic modality in gynecologic disorders, especially in the evaluation of early cervical cancer, endometrial cancer, and possibly in infertility practice.

Keywords:
Intrauterine sonography, Transvaginal sonography, Cervical cancer, Endometrial cancer, Gynecologic disorders
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1999
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