Skip to main content

A minimum dataset for a standard transoesophageal echocardiogram: a guideline protocol from the British Society of Echocardiography


A systematic approach to transoesophageal echocardiography (TOE) is essential to ensure that no pathology is missed during a study. In addition, a standardised approach facilitates the education and training of operators and is helpful when reviewing studies performed in other departments or by different operators. This document produced by the British Society of Echocardiography aims to provide a framework for a standard TOE study. In addition to a minimum dataset, the layout proposes a recommended sequence in which to perform a comprehensive study. It is recommended that this standardised approach is followed when performing TOE in all clinical settings, including intraoperative TOE to ensure important pathology is not missed. Consequently, this document has been prepared with the direct involvement of the Association of Cardiothoracic Anaesthetists (ACTA).




A1, A2, A3:

Scallops of anterior mitral valve leaflet


Atrial septal defect


Aortic valve


Colour flow Doppler


Continuous wave Doppler




Interatrial septum


Inferior vena cava


Inter ventricular septal dimension in diastole and systole


Left atrium


Left atrial appendage


Left lower pulmonary vein


Left upper pulmonary vein


Left ventricle


Left ventricular diameter in diastole and systole


Left ventricular outflow tract


Mitral regurgitation


Non coronary cusp

P1, P2, P3:

Scallops of posterior mitral valve leaflet


Pulmonary artery


Patent foramen ovale


Pulse wave Doppler


Right atrium


Right coronary cusp


Right lower pulmonary vein


Right upper pulmonary vein


Right ventricle


Right ventricular cavity diameter in diastole


Right ventricular systolic pressure


Superior vena cava


Transoesophageal echocardiography


Tricuspid regurgitation


Transthoracic echocardiogram


  1. Hahn RT, Abraham T, Adams MS, Bruce CJ, Glas KE, Lang RM, Reeves ST, Shanewise JS, Siu SC, Stewart W, et al. 2013 Guidelines for performing a comprehensive transesophageal echocardiographic examination: recommendations from the American Society of Echocardiography and the Society of Cardiovascular Anesthesiologists. Journal of the American Society of Echocardiography 26 921–964. (doi:10.1016/j.echo.2013.07.009)

    Article  Google Scholar 

  2. Flachskampf FA, Badano L, Daniel WG, Feneck RO, Fox KF, Fraser AG, Pasquet A, Pepi M, de Isla P, & Zamorano JL 2010 Recommendations for transoesophageal echocardiography: update 2010. European Journal of Echocardiography 11 557–576. (doi:10.1093/ejechocard/jeq057)

    Article  CAS  Google Scholar 

  3. Sharma V, Alderton S, McNamara H, Steeds R, Bradlow W, Chenzbraun A, Oxborough D, Matthew T, Jones R, Wheeler R, et al. 2015 A safety checklist for transoesophageal echocardiography from the British Society of Echocardiography and the Association of Cardiothoracic Anaesthetists. Echo Research and Practice 2 G25–G27. (doi:10.1530/ERP-15-0035)

    Article  Google Scholar 

  4. Wharton G, Steeds R, Allen J, Phillips H, Jones R, Kanagala P, Lloyd G, Masani N, Mathew T, Oxborough D, et al. 2015 A minimum data set for a standard transthoracic echocardiogram: a guideline protocol from the British Society of Echocardiography. Echo Research and Practice 2 G9–G24. (doi:10.1530/ERP-14-0079)

    Article  Google Scholar 

  5. Foster GP, Dunn AK, Abraham S, Ahmadi N, & Sarraf G 2009 Accurate measurement of mitral annular dimensions by echocardiography: importance of correctly aligned imaging planes and anatomic landmarks. Journal of the American Society of Echocardiography 22 458–463. (doi:10.1016/j.echo.2009.02.008)

    Article  Google Scholar 

  6. Baumgartner H, Hung J, Bermejo J, Chambers JB, Evangelista A, Griffin BP, Bernard I, Otto CM, Pellikka PA, & Quinones M 2009 Echocardiographic assessment of valve stenosis: EAE/ASE recommendations for clinical practice. European Journal of Echocardiography 10 1–25. (doi:10.1093/ejechocard/jen303)

    Article  Google Scholar 

  7. Ho SY, & Nihoyannopoulos P 2006 Anatomy, echocardiography, and normal right ventricular dimensions. Heart 92 (Suppl 1) i2–i13. (doi:10.1136/hrt.2005.077875)

    Article  Google Scholar 

  8. Lang RM, Bierig M, Devereux RB, Flachskampf FA, Foster E, Pellikka PA, Picard MH, Roman MJ, Seward J, Shanewise JS, et al. 2005 Recommendations for chamber quantification: a report from the American Society of Echocardiography’s Guidelines and Standards Committee and the Chamber Quantification Writing Group, developed in conjunction with the European Association of Echocardiography, a branch of the European Society of Cardiology, Chamber Quantification Writing Group; American Society of Echocardiography’s Guidelines and Standards Committee; European Association of Echocardiography. Journal of the American Society of Echocardiography 18 1440–1463. (doi:10.1016/j.echo.2005.10.005)

    Article  Google Scholar 

  9. Masani N, Wharton G, Allen J, Chambers J, Graham J, Jones R, Rana B, Steeds R & The British Society of Echocardiography Education Committee 2011 Echocardiography: guidelines for chamber quantification;

  10. Wheeler R, Steeds RP, Wharton G, Rana B, Smith N, Oxborough D, Brewerton H, Allen J, Chambers J, Sandoval J, et al. 2011 Recommendations for safe practice in sedation during transoesophageal echocardiography: a report from the education committee of the British Society of Echocardiography;

    Google Scholar 

  11. Kanagala P, Bradley C, Hoffman P, Steeds RP, Rana B, Oxborough D, Wheeler R, Wharton G, Brewerton H, Chambers J, et al. 2011 Guidelines for transoesophageal echocardiography probe cleaning and disinfection from the British Society of Echocardiography;

    Book  Google Scholar 

Download references


This guideline did not receive any specific grant from any funding agency in the public, commercial or not-for-profit sector.

Author information

Authors and Affiliations


Additional information

R Wheeler is the lead author

R Steeds is the Guidelines Chair

Rights and permissions

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the articles Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the articles Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Wheeler, R., Steeds, R., Rana, B. et al. A minimum dataset for a standard transoesophageal echocardiogram: a guideline protocol from the British Society of Echocardiography. Echo Res Pract 2, G29–G45 (2015).

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI:

Key Words

  • trans-oesophageal echocardiography
  • 2D echocardiography
  • guidelines