There are an extensive uses for sonography or ultrasound as the demand for safer environment and procedures are increasing drastically. Most of the patients and even physicians prefer ultrasound technology over x-ray because it does not involve the use of radiation. That is in fact minimizing the possible risks and side effects to the technician as well as the patient. Ultrasound uses very high frequency sound waves to produce real time images of different areas of the body. One of the most popular uses is in obstetrics which is also widely known as pregnancy scan. Physician is able to follow, monitor and document the development of a fetus with the help of ultrasound machine. And of course this is not the only use of ultrasound.