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Diagnostic Tests – Transesophageal Echocardiography (TEE)
What Is Transesophageal Echocardiography (TEE)?
Transesophageal echocardiography is a highly sensitive and detailed form of cardiac ultrasound in which images of the heart are obtained from within the esophagus rather than across the chest wall. Because the esophagus sits directly behind the heart, TEE provides superior visualization of posterior cardiac structures and is far more sensitive than transthoracic echocardiography (TTE) for detecting abnormalities of the left atrium, atrial appendage, mitral valve, and thoracic aorta.
TEE is especially useful for identifying conditions such as aortic dissection, thoracic aortic aneurysm, atrial thrombi, patent foramen ovale, and infective endocarditis vegetations.
How Is TEE Performed?
TEE is conducted by passing a flexible endoscopic probe with an ultrasound transducer at its tip through the patient’s mouth and into the esophagus. After mild sedation and local throat anesthesia, the probe is positioned behind the heart, where it emits ultrasound waves and captures high-resolution images unobstructed by the chest wall, lungs, or ribs.
This proximity allows for exceptionally clear visualization of cardiac chambers, valves, and the proximal aorta.
When Should You Choose or Answer TEE?
TEE is indicated when:
What Is the Most Accurate Diagnostic Test?
Although TEE is the most sensitive noninvasive method for visualizing many cardiac structures, the most accurate diagnostic test overall for coronary anatomy is left-heart cardiac catheterization (coronary angiography).
Catheterization provides direct measurement of coronary stenosis and remains the gold standard for diagnosing obstructive coronary artery disease.
What Is Transesophageal Echocardiography (TEE)?
Transesophageal echocardiography is a highly sensitive and detailed form of cardiac ultrasound in which images of the heart are obtained from within the esophagus rather than across the chest wall. Because the esophagus sits directly behind the heart, TEE provides superior visualization of posterior cardiac structures and is far more sensitive than transthoracic echocardiography (TTE) for detecting abnormalities of the left atrium, atrial appendage, mitral valve, and thoracic aorta.
TEE is especially useful for identifying conditions such as aortic dissection, thoracic aortic aneurysm, atrial thrombi, patent foramen ovale, and infective endocarditis vegetations.
How Is TEE Performed?
TEE is conducted by passing a flexible endoscopic probe with an ultrasound transducer at its tip through the patient’s mouth and into the esophagus. After mild sedation and local throat anesthesia, the probe is positioned behind the heart, where it emits ultrasound waves and captures high-resolution images unobstructed by the chest wall, lungs, or ribs.
This proximity allows for exceptionally clear visualization of cardiac chambers, valves, and the proximal aorta.
When Should You Choose or Answer TEE?
TEE is indicated when:
- Transthoracic echo is inadequate due to poor acoustic windows (obesity, COPD, chest wall deformities).
- There is a need to evaluate posterior cardiac structures, including:
- Left atrial or left atrial appendage thrombus
- Endocarditis with suspected valvular vegetations
- Suspected PFO or intracardiac shunts
- Suspected aortic dissection or aneurysm
What Is the Most Accurate Diagnostic Test?
Although TEE is the most sensitive noninvasive method for visualizing many cardiac structures, the most accurate diagnostic test overall for coronary anatomy is left-heart cardiac catheterization (coronary angiography).
Catheterization provides direct measurement of coronary stenosis and remains the gold standard for diagnosing obstructive coronary artery disease.
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