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Evaluation Studies
Journal Article
Three-dimensional ultrasound inversion rendering technique facilitates the diagnosis of hydrosalpinx.
Journal of Clinical Ultrasound : JCU 2010 September
PURPOSE: To test the utility of three-dimensional (3D) ultrasound (US) inversion rendering technique in the evaluation of fluid-distended fallopian tubes.
METHODS: Fifty-two patients with fluid-filled adnexal masses suspected of being abnormal fallopian tubes were scanned by two-dimensional and 3D transvaginal ultrasound (TVUS). Six patients had bilateral disease. The acquired volumes were then "inverted" to display a cast-like appearance of the fluid-filled structures. The ipsilateral ovaries were identified in all patients. Five patients had acute tubal disease.
RESULTS: Fifty-two of the 58 inversion renderings yielded acceptable images of hydrosalpinges. Only in four patients were the two-dimensional images more informative than the 3D-rendered and inverted views. In nine patients adjacent corpora lutea, ovarian cysts, and follicles within normal ovaries were also identified, but appeared separate from the fluid-filled tubes. The tubes in the patients with acute disease were all successfully inverted.
CONCLUSIONS: The 3D inversion technique is a simple and effective way to render fluid-filled spaces, which may be tortuous and follow various directions. The rendered images increased the confidence in diagnosing hydrosalpinx.
METHODS: Fifty-two patients with fluid-filled adnexal masses suspected of being abnormal fallopian tubes were scanned by two-dimensional and 3D transvaginal ultrasound (TVUS). Six patients had bilateral disease. The acquired volumes were then "inverted" to display a cast-like appearance of the fluid-filled structures. The ipsilateral ovaries were identified in all patients. Five patients had acute tubal disease.
RESULTS: Fifty-two of the 58 inversion renderings yielded acceptable images of hydrosalpinges. Only in four patients were the two-dimensional images more informative than the 3D-rendered and inverted views. In nine patients adjacent corpora lutea, ovarian cysts, and follicles within normal ovaries were also identified, but appeared separate from the fluid-filled tubes. The tubes in the patients with acute disease were all successfully inverted.
CONCLUSIONS: The 3D inversion technique is a simple and effective way to render fluid-filled spaces, which may be tortuous and follow various directions. The rendered images increased the confidence in diagnosing hydrosalpinx.
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