Current update on the role of endoanal ultrasound: a primer for radiologists

Shruti Kumar, Ranjit K. Chaudhary, Samir S. Shah, Devendra Kumar, Pankaj Nepal, Vijayanadh Ojili

Research output: Contribution to journalReview articlepeer-review

Abstract

Endoanal ultrasound (EAUS) is a valuable imaging modality for the evaluation of anal and perianal pathologies. It provides detailed information about the anatomy and physiology of the anorectal region and has been used in pre-and post-operative settings of anorectal pathologies. EAUS is not only useful in the evaluation of benign pathologies but also in loco-regional staging of anal and rectal tumors. EAUS has several advantages over MRI, including reduced cost, better patient tolerance, and improved scope of application in patients with contraindications to MRI. Despite its benefits, EAUS is not widely performed in many centers across the globe. This article aims to educate radiologists, trainees, and surgeons about the indications, contraindications, patient preparation, imaging technique, and findings of EAUS. We will also highlight the technical difficulties, diagnostic challenges, and procedural complications encountered during EAUS, along with a comparative analysis of EAUS with other imaging approaches.

Original languageEnglish (US)
JournalAbdominal Radiology
DOIs
StateAccepted/In press - 2024

Keywords

  • EAUS(Endoanal Ultrasound)
  • Fecal incontinence
  • Perianal abscess
  • Perianal fistula
  • Rectal cancer

ASJC Scopus subject areas

  • Gastroenterology
  • Urology
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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