Transesophageal ultrasound (transesophageal echocardiography)

In certain situations, an ultrasound of the heart must be performed from the esophagus. This provides clearer images than those produced from outside the body.

It can provide information about

  • Thromboses (blood clots) in the heart
  • Inflammation of the heart valves (endocarditis)
  • The condition of the heart valves for planning of heart valve surgery
  • Congenital defect joining the right and left ventricles and the atria
  • Examination of the aorta (main artery)


The patient lies down and an intravenous line is placed in the arm. The throat is numbed with a spray. The ultrasound probe is inserted into the esophagus, similar to a gastroscopy.

The patient must fast (no food) for 8 hours before the procedure.


Approx. 1 hours for preparation and consultation with the doctor, transesophageal ultrasound

Herz-Lungen-Praxis Spalenring 147
4055 Basel

T +41 848 121 121

Opening hours Monday – Friday
07:30 – 18:00 h

Arrival Public transport
Bus no. 50
Tram no. 1, no. 6 Brausebad

Swiss Accreditation SMTS 0069
Swiss Accreditation