Sonography

Sonography is considered a safe procedure with no known harmful side effects. It does not use ionizing radiation, making it a preferred choice for examining developing fetuses during pregnancy.

During sonography, you will typically lie on an examination table. A technician will apply a special gel to the area of the body being examined and then move a device called a transducer over it. The transducer sends sound waves into the body, which bounce back to create images on a screen.

Preparation depends on the type of ultrasound. For some exams, you may be asked to fast or to have a full bladder. Your healthcare provider will give you specific instructions based on the area being examined.

The duration of a sonography exam can vary, but most procedures are completed within 30 to 60 minutes. Some examinations, especially more complex ones, may take longer.

Sonography is versatile and can be used for most parts of the body, but it has limitations. For example, it is less effective for examining air-filled or bony areas, like the lungs or head. In such cases, other imaging techniques may be recommended.