Ultrasound imaging, also called sonography, is a method of obtaining diagnostic images from inside the human body through the use of high frequency sound waves. Utrasonography is used as a diagnostic tool that can assist doctors with making recommendations for further treatment.
• Viewing an unborn fetus
• Examining many of the body's internal organs, including the heart, liver, gallbladder, spleen, pancreas, kidneys, and bladder
• Showing movement of internal tissues and organs, which enables physicians to see blood flow and heart valve functions
• Guiding procedures such as needle biopsies
• Imaging the breast and guiding biopsy of breast cancer
• Evaluating superficial structures, such as the thyroid gland and scrotum (testicles)
• Wear comfortable, loose-fitting clothing.
• Depending on the type of ultrasound exam you have, you may be asked:
• Not to eat or drink for up to 12 hours before your appointment, or
• Drink up to six glasses of water two hours prior to your exam and avoid urinating. This will ensure a full bladder when the exam begins.
The examination usually takes less than 30 minutes. After being positioned on the exam table, a clear gel is applied in the area being examined. This helps the transducer make contact with the skin. The technologist firmly presses the transducer against the skin and moves it back and forth to image the area of interest.
Generally, the technologist is able to review the ultrasound images in real-time or, when the examination is complete and the gel is wiped off, you may be asked to dress and wait while the ultrasound images are reviewed, either on film or monitor.
Most ultrasound exams are painless. The gel applied to your skin may be a bit cold and there may be varying degrees of discomfort and pressure as the technologist guides the transducer over your abdomen, especially if you are required to have a full bladder.