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  • Title: Endoanal ultrasound in benign anorectal disorders: clinical relevance and possibilities.
    Author: Felt-Bersma RJ.
    Journal: Expert Rev Gastroenterol Hepatol; 2008 Aug; 2(4):587-606. PubMed ID: 19072406.
    Abstract:
    Endoanal ultrasound is a well-established technique used to evaluate benign anorectal disorders. The technique is easy to perform, has a short learning curve and causes very little discomfort. Reconstruction of 3D images is possible. The clinical indications for endoanal ultrasound in benign anorectal diseases are fecal incontinence and peri-anal fistula. Sphincter defects can be depicted with precision and correlate perfectly with surgical findings. Furthermore, an impression of sphincter atrophy can be established. With perianal fistula the tracts can be visualized. Introducing hydrogen peroxide via the external fistula opening improves imaging. Endoanal ultrasound and MRI have comparable results in diagnosing anorectal disorders.
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