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 …

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 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 …

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 …

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 …

May 3, 2024 · Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in …

Mar 12, 2022 · Ultrasound A transvaginal ultrasound allows your doctor to see the exact location of your pregnancy. For this test, a wandlike device is placed into your vagina. It uses sound waves to create …

Sep 20, 2025 · Fetal macrosomia can't be definitively diagnosed until after a baby is born and weighed. But if you have risk factors for fetal macrosomia, your healthcare professional likely will use tests to …

This exam is done less often than mammogram and ultrasound. An MRI uses a magnetic field and radio waves to see inside your breasts. During an MRI, you lie in a large, tube-shaped machine that scans …