Ultrasound - Mayo Clinic Overview Diagnostic ultrasounds use sound waves to make pictures of the body Ultrasound, also called sonography, shows the structures inside the body The images can help guide diagnosis and treatment for many diseases and conditions Most ultrasounds are done using a device outside the body However, some involve placing a small device inside the body
Abdominal ultrasound - Mayo Clinic The enlarged area in the lower part of the aorta is an abdominal aortic aneurysm An ultrasound image of an abdominal aortic aneurysm is shown in the upper right corner Ultrasound imaging is often used to diagnose abdominal aortic aneurysms
MRI - Mayo Clinic Magnetic resonance imaging (MRI) is a medical imaging technique that uses a magnetic field and computer-generated radio waves to create detailed images of the organs and tissues in your body Most MRI machines are large, tube-shaped magnets When you lie inside an MRI machine, the magnetic field inside works with radio waves and hydrogen atoms in your body to create cross-sectional images
Echocardiogram - Mayo Clinic An echocardiogram uses sound waves to show how blood flows through the heart and heart valves Sensors attached to the chest and sometimes the legs check the heart rhythm during the test The test can help a healthcare professional diagnose heart conditions
EEG (electroencephalogram) - Mayo Clinic An electroencephalogram (EEG) is a test that measures electrical activity in the brain This test also is called an EEG The test uses small, metal discs called electrodes that attach to the scalp Brain cells communicate via electrical impulses, and this activity shows up as wavy lines on an EEG recording Brain cells are active all the time, even during sleep
Fecal occult blood test - Mayo Clinic Learn how healthcare professionals use fecal occult blood tests, such as the fecal immunochemical test, to screen for colon cancer
Endoscopic ultrasound - Mayo Clinic Endoscopic ultrasound is a procedure that combines endoscopy and ultrasound to create images of the digestive tract and nearby organs and tissues It also is called EUS During EUS, a thin, flexible tube called an endoscope is placed in the digestive tract An ultrasound device on the tip of the tube uses high-frequency sound waves to create detailed images of the digestive tract and other
Uterine fibroids - Diagnosis and treatment - Mayo Clinic Uterine fibroids often are found by chance during a routine pelvic exam Your doctor may feel irregular changes in the shape of your uterus, suggesting the presence of fibroids If you have symptoms of uterine fibroids, you may need these tests: Ultrasound This test uses sound waves to get a picture of your uterus It can confirm that you have fibroids, and map and measure them
Carotid ultrasound - Mayo Clinic Carotid (kuh-ROT-id) ultrasound is a procedure that uses sound waves to look at blood flow through the carotid arteries The carotid arteries are a pair of blood vessels on each side of the neck They deliver blood from the heart to the brain A carotid ultrasound also checks the thickness of the carotid artery wall and for blood clots