Ultrasound is an imaging technique that uses high frequency sound waves to create images of organs and systems within the body. Ultrasound is non-invasive technique used to diagnose a disease or a condition and also may aid in treatment of diseases.
Ultrasonography is a technical term for ultrasound imaging.
The test is performed in the radiology department. You will probably be asked to lie down on table for the procedure. A clear water based conducting gel is applied onto the patients skin to help with the transmission of sound waves. A transducer or probe is being moved over the area being examined. The scan usually takes about 15 minutes. Ultrasound images are viewed on the screen attached to the scanner.
Patients are requested to avoid eating and drinking 6 to 8 hours prior to examination, if internal organs such as gall bladder are to be examined.
Click on the below links to know more about different types of ultrasounds: