Ultrasound - Mayo Clinic
2024年5月3日 · Diagnostic ultrasound is a safe procedure that uses low-power sound waves. There are no known risks. Ultrasound is a valuable tool, but it has limitations. Sound waves don't travel well through air or bone. This means ultrasound isn't effective at imaging body parts that have gas in them or are hidden by bone, such as the lungs or head.
Abdominal ultrasound - Mayo Clinic
2024年11月5日 · An abdominal ultrasound is a medical imaging test that uses sound waves to see inside the belly area, also called the abdomen. It's the preferred screening test for abdominal aortic aneurysm. But the test may be used to diagnose or rule out many other health conditions.
Doppler ultrasound: What is it used for? - Mayo Clinic
2023年12月5日 · Doppler ultrasound is a noninvasive test that can be used to measure the blood flow through your blood vessels. It works by bouncing high-frequency sound waves off red blood cells that are circulating in the bloodstream. A regular ultrasound uses sound waves to produce images, but can't show blood flow.
Fetal ultrasound - Mayo Clinic
2023年6月24日 · The image below is from a 3D fetal ultrasound. This type of ultrasound can make images that are clearer and more detailed than standard fetal ultrasound images. A 3D fetal ultrasound is sometimes used to detect facial problems, bone problems or neural tube defects. Some companies offer 3D ultrasounds outside of medical settings.
Echocardiogram - Mayo Clinic
2024年11月12日 · The ultrasound wand goes through the catheter and moves near the heart. The wand gives off sound waves. It records the sound waves that bounce back from the heart. A computer changes the information into moving images. The images are seen on a monitor. A healthcare professional watches your oxygen level during the test. Stress echocardiogram
Kidney stones - Diagnosis and treatment - Mayo Clinic
2022年6月3日 · Ultrasound, a noninvasive test that is quick and easy to perform, is another imaging option to diagnose kidney stones. Analysis of passed stones. You may be asked to urinate through a strainer to catch stones that you pass. Lab analysis will reveal the makeup of your kidney stones.
Endometriosis - Diagnosis and treatment - Mayo Clinic
2024年8月30日 · Ultrasound. This test uses sound waves to make pictures of the inside of the body. To capture the images, a device called a transducer might be pressed against the stomach area. Or it may be placed into the vagina in a version of the exam called transvaginal ultrasound. Both types of the test may be done to get the best view of the reproductive ...
Ultrasound - Doctors & Departments - Mayo Clinic
2024年5月3日 · Ultrasound, CT scan, Barium enema, X-ray, CT urogram, Ultrasound elastography, Defecating proctogram, Barium swallow st... udy, Voiding cystourethrogram, CT enterography Show more areas of focus for Deb A. Baumgarten, M.D.
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.
Ectopic pregnancy - Diagnosis & treatment - Mayo Clinic
2022年3月12日 · Abdominal ultrasound, in which an ultrasound wand is moved over your belly, may be used to confirm your pregnancy or evaluate for internal bleeding. Transvaginal ultrasound During a transvaginal ultrasound, you lie on an exam table while a health care provider or a medical technician puts a wandlike device, known as a transducer, into the vagina.