May 3, 2024 · 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 …

Nov 5, 2024 · 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 …

Jul 3, 2025 · 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 …

Nov 12, 2024 · 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 …

Jun 24, 2023 · 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 …

May 3, 2024 · 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。 …

Nov 5, 2019 · Overview of ultrasound-guided transperineal prostate biopsies In transperineal biopsy, the urologist passes the biopsy needle through the perineal skin and into the prostate, rather than …

Jun 14, 2025 · Ultrasound. This test uses sound waves to make images of your thyroid gland. A thyroid ultrasound shows the shape and structure of nodules. Fine-needle aspiration biopsy. A biopsy of …

Aug 21, 2025 · An MRI presents a global view of the pelvic region, while ultrasound is limited by what the transducer can reach. However, specialized pelvic ultrasound can potentially help clarify …

Jan 15, 2025 · 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 …