Defecation Disorders & Fecal Incontinence

Endoanal ultrasound is the gold standard for identifying sphincter tears & defects.

Sphincter Tears & Defects

Fecal incontinence has a profound impact on a patient’s life, impairing quality of life and carrying a substantial economic burden due to health costs. Patient evaluation with a detailed clinical history and examination is important to indicate the type of injury.  

Endoanal ultrasound is the gold standard for sphincter evaluation in fecal incontinence and is a simple, well-tolerated, and cost-effective technique. 

Episiotomy Scar Mid Anal Canal 2D Marked
Episiotomy Scar Mid Anal Canal 2D Marked

Endoanal Ultrasound

The Catalyst Ultrasound System offers practitioners the ability to accurately delineate internal and external anal sphincters as well as identify any gaps or defects.

Cine/Video File

Record and playback a clip of the entire anal canal. Click frame by frame to identify the exact location of sphincter tears and defects.

Measurement tool

Catalyst software has built-in measurement tools that measure the angle, length, and percentage of internal or external sphincter tears or defects.


Halos 2D or 3D Endoanal or Transrectal probes can be used to identify, measure, and label the exact location of any sphincter tears or defects.

Ultrasound Probes

Halo ultrasound probes are designed to identify sphincter tears and defects.

  • The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Management of Fecal Incontinence

    This article from the ASCRS reviews different management methods for Fecal Incontinence. 
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  • Perineal Body Measurement Improves Evaluation of Anterior Sphincter Lesions During Endoanal Ultrasonography

    This groundbreaking article transformed the way many colorectal surgeons perform endoanal examinations.
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  • Consensus Definitions and Interpretation Templates for Fluoroscopic Imaging of Defecatory Pelvic Floor Disorders

    Fluoroscopic defecography (FD) is a critical tool long used in the evaluation of defecatory disorders. Like most imaging studies, such examinations are ordered by multiple different specialties.
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  • Endoanal ultrasonography in establishing the diagnosis of fecal incontinence

    The aim of this article is to review the possibilities of using endoanal ultrasound in the evaluation of fecal incontinence.
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  • Physiologic and radiographic testing in patients with pelvic floor disorders and pelvic organ prolapse

    Specialized anorectal testing can help to delineate the pathophysiology of pelvic floor and anorectal dysfunction. These tests can define functional or structural abnormalities and help to select treatment modalities, especially in cases where initial or secondary interventions have failed or were ineffective.
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  • Functional Anorectal Disorders

    This report and the associated recommendations are based on a review of the world literature by investigators with a longstanding interest in anorectal disorders.
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