Conventional Radiography, Computed Tomography and Magnetic Resonance Imaging
In contrast to defaecography, conventional radiography, computed tomography (CT) and magnetic resonance imaging (MRI) are not well suited to providing information about functional disorders in patients with defaecation disorders. They are, on the other hand, excellent methods for demonstrating underlying morphological changes such as congenital anorectal anomalies, cloacal anomalies, sacral agenesis and operative complications following rectoplasty. This is particularly true of CT and MRI, conventional radiography being of considerably less value in the evaluation of anorectal abnormalities. The aim of this article is to document and illustrate the value of CT and MRI in visualising both the normal anatomy of the pelvic floor and pathological conditions which may lead to severe functional disorders. The contribution of conventional radiography is also briefly reviewed.
KeywordsPelvic Floor External Anal Sphincter Conventional Radiography Anorectal Malformation Imperforate Anus
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