Clinical Staging: Endoscopic Techniques

摘要: Patients with locally advanced rectal cancer benefit from neoadjuvant chemoradiation therapy followed by either a sphincter-sparing operation or abdominoperineal resection. Clinical decisions regarding and type of surgical approach rely on accurate preoperative staging. Computed tomography, magnetic resonance imaging, endorectal ultrasound (ERUS) are the main modalities used for staging cancer. While each has its own advantages disadvantages, ERUS is our preferred initial tool. It can be performed surgeons, providing an office-based study results interpretation available during patient’s visit. well tolerated patients, it requires minimal preparation no sedation. The accuracy ERUS, when utilized experienced practitioner, 84% assessing depth tumor invasion 74% nodal status.1 operator dependent, improve experience standardization.