Rappresentazione anatomica del canale anale con ultrasonografia (US) endoanale 3D

Translated title of the contribution: Three-dimensional anal endosonography in depicting anal-canal anatomy

A. Reginelli, Y. Mandato, C. Cavaliere, N. L. Pizza, A. Russo, S. Cappabianca, L. Brunese, A. Rotondo, R. Grassi

Research output: Contribution to journalArticlepeer-review


Purpose. This report describes the advantages of 3D anal endosonography in depicting the normal anatomy of the anal canal in relation to sex and age. Materials and methods. A retrospective study was performed of 85 patients, 33 men and 52 women, previously examined with 3D anal ultrasound (US) for clinically suspected anorectal disease but found to be negative. The examinations were performed with a Bruel and Kjaer US system with a 2050 transducer, scanning from the anorectal junction to the subcutaneous portion of the external anal sphincter (EAS). The 3D reconstructions provided an estimation of sphincter length in the anterior and posterior planes, and axial 2D images enabled calculation of the thickness of the internal anal sphincter (IAS) and EAS in the anterior, posterior and lateral transverse planes. Results. Distribution of the sphincter complex is asymmetric in both sexes: the EAS and IAS are significantly shorter in females, especially in the anterior longitudinal plane (p=0.005 and p

Translated title of the contributionThree-dimensional anal endosonography in depicting anal-canal anatomy
Original languageItalian
Pages (from-to)759-771
Number of pages13
JournalRadiologia Medica
Issue number5
Publication statusPublished - Aug 2012

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Medicine(all)


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