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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 diseas...
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 ...
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 bloodstre...
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...
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 fr...
A thyroid ultrasound shows the shape and structure of nodules. Fine-needle aspiration biopsy. A biopsy of nodules can make sure there's no cancer. During the procedure, a healthcare professional puts a very thin needl...
在开始超声检查之前，可能会要求您进行以下操作： 摘下检查部位的所有饰品。 脱掉或调整部分或全部衣服。 换上检查服。 您需要躺在检查台上。 术中 检查部位的皮肤上将被抹上凝胶。这样有助于防止出现气穴，气穴会阻碍声波生成图像。这种安全的水基凝胶很容易从皮肤上去除，如果粘在衣服 ...
Fetal ultrasound should only be done for medical reasons as part of prenatal care, based on the advice of a doctor or other licensed health care professional. If you're getting ready for an ultrasound, check out the f...
However, specialized pelvic ultrasound can potentially help clarify involvement of deep endometriosis in some pelvic structures. Dr. Cope notes that specialized ultrasound for the detection of endometriosis exists in ...
Often, fine-needle aspiration is done using ultrasound to guide accurate placement of the needle. If fluid comes out and the breast lump goes away, your doctor can make a breast cyst diagnosis immediately. If the flui...
