Limited Transthoracic Echocardiogram (TTE) Guidelines

Definition and Scope

A limited TTE is a focused, goal-directed subset of a comprehensive TTE examination performed through the chest wall using the same transthoracic approach, as recommended by the American College of Cardiology 1, 2
The American College of Cardiology suggests that a limited TTE uses the same transthoracic imaging approach as a comprehensive TTE, distinguishing it from transesophageal echocardiography (TEE) which is performed via the esophagus 1, 2
The American College of Cardiology states that a limited TTE focuses on specific clinical questions rather than providing comprehensive cardiac assessment 1, 2
The American College of Cardiology recommends that a limited TTE includes various named protocols such as point-of-care cardiac ultrasound (POCUS), critical care echocardiography, ultrasound-assisted physical examination (UAPE), and HEART (hemodynamic echocardiography assessment in real time) scan 1, 2

The American College of Cardiology suggests that limited TTE provides focused assessment while minimizing exposure time and staff risk in COVID-19 and infection control settings, though should not be performed by novice practitioners due to time constraints 1, 2

The American College of Cardiology states that limited TTE differs from comprehensive TTE in scope, addressing specific clinical questions rather than complete cardiac evaluation 1, 2
The American College of Cardiology recommends that limited TTE image acquisition should be "as focused as necessary to obtain diagnostic views but comprehensive enough to avoid the need to return for additional images" 1, 2
The American College of Cardiology suggests that limited TTE requires advance planning based on clinical indication, review of prior imaging, and consideration of contrast agent use to avoid prolonged scanning time 1, 2
The American College of Cardiology recommends that limited TTE images should be saved and archived whenever possible to allow remote interpretation assistance and comparison over time 1, 2

The American College of Radiology states that limited TTE may miss pathology outside its focused scope and should prompt comprehensive TTE or TEE when findings are equivocal 3, 4
The American College of Cardiology suggests that despite being "limited," these examinations should not be performed by students or novice practitioners, particularly in time-sensitive situations where protective equipment may limit image quality 1, 2
The American College of Radiology recommends that in blunt chest trauma, TTE is the first-line modality for suspected cardiac injury, though TEE may be needed when TTE findings are suboptimal 3, 4

The American College of Cardiology states that limited TTE exists within a spectrum of echocardiographic examinations, using transthoracic approach, but having narrower scope than comprehensive TTE 1, 5
The American College of Radiology suggests that TEE is invasive, requires sedation, and accesses the heart via the esophagus—it is not a form of TTE and provides different (sometimes superior) views, particularly for posterior structures 3, 4, 6