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 …

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 …

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 …

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。 …

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 …

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 …

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 …

Aug 30, 2024 · A standard ultrasound won't confirm whether you have endometriosis. But it can find cysts linked with the condition called endometriomas. Magnetic resonance imaging (MRI). This exam …

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 …