Read the following passage and answer if the question is true or false.
Passage: An echocardiogram, often referred to as a cardiac echo or simply an echo, is a sonogram of the heart. (It is not abbreviated as ECG, because that is an abbreviation for an electrocardiogram.) Echocardiography uses standard two-dimensional, three-dimensional, and Doppler ultrasound to create images of the heart.

Question: is an echocardiogram the same as a sonogram?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
True. An echocardiogram is a specific type of sonogram that focuses on the heart.