Ultrasound
Ultrasound Overview
Ultrasound is sound waves with frequencies above the threshold of human hearing. It is used in a variety of clinical settings, such as detecting tumors and aiding in the diagnosis of various diseases. Ultrasound is also used in obstetric ultrasounds, to detect fetal abnormalities and assist in the delivery process.
Ultrasound Preparation
Before undergoing an ultrasound procedure, patients should inform their doctor or technician of any medical conditions they may have or medications they may be taking. Patients should remove all jewelry and avoid eating or drinking for at least four hours before the procedure.
Ultrasound Procedures
Ultrasound procedure typically require the patient to lie on their back on an examination table while a gel is applied to the area of concern. An ultrasound transducer is then moved over the area by a technician or doctor. The transducer emits sound waves which are then picked up by a computer, allowing for images of the area in question to be produced. The procedure usually takes 20-30 minutes.
Ultrasound Types
Different types of ultrasound procedures can be performed depending on the area under examination. Common types include:
- Abdominal Ultrasound – Utilized to examine organs located in the abdomen, including the liver, gallbladder, pancreas, and kidneys.
- Echocardiography – A type of ultrasound used to diagnose diseases or conditions of the heart.
- Obstetrics – Used to diagnose fetal health during pregnancy.
- Vascular Ultrasound - Used to diagnose blood vessel problems, such as blockages or aneurysms.
Ultrasound Risks
Ultrasound is generally considered to be a safe procedure with few risks. However, some risks that may be associated with an ultrasound include:
- Possible pain or discomfort from the pressure of the transducer on the skin.
- Damage to tissues caused by exposure to high intensity sound waves.
- Burns from the heating of tissue from the sound waves.
When is Ultrasound Used
Ultrasound is a widely-used medical imaging technique that can be used to view the internal organs and tissues of the body. Ultrasound is particularly useful for visualizing the abdomen, pelvis, and reproductive organs. It is also used to diagnose diseases such as heart disease, gallbladder and kidney problems, and pregnancy complications.
Why is Ultrasound Used
Ultrasound is a non-invasive imaging technique that produces images without the use of radiation, and is thus safer than methods such as X-ray and CT Scan. Ultrasound is also convenient, quick, and relatively inexpensive. Furthermore, ultrasound allows for real-time images, which can be advantageous in certain clinical settings.