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 …

Jul 3, 2025 · 多普勒超声通过测量音高（或者说频率）的变化率来估计血液流动的速度。由接受过超声成像培训的技术人员（称为超声医师）执行多普勒超声操作。超声医师用一个手持式小设 …

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 …

Nov 12, 2024 · An echocardiogram uses sound waves to show how blood flows through the heart and heart valves. Sensors attached to the chest and sometimes the legs check the heart …

Jul 3, 2025 · La ecografía Doppler es una prueba no invasiva que puede usarse para medir el flujo de sangre que pasa por los vasos sanguíneos. Funciona emitiendo ondas sonoras de …

قد يساعد التخطيط فوق الصوتي بالدوبلر على تشخيص كثير من الحالات المرضية، ومنها: الجلطات الدموية. ضعف الصمامات في أوعية الساق، ما يسبب تجمع الدم أو السوائل الأخرى في ساقيك (القصور الوريدي). عيوب صمامات القلب وأمراض القلب ...

Jul 12, 2025 · Doppler ultrasound. High-frequency sound waves help a healthcare professional see the arteries and kidneys and check how they work. This procedure also helps find if the …

Jun 24, 2025 · Angiography. A healthcare professional might recommend a CT scan, an MRI or an X-ray of your belly to find out if the arteries to your small intestine have narrowed. Adding a …

Feb 6, 2024 · To diagnose varicose veins, a healthcare professional might use a test called a venous Doppler ultrasound of the leg. It's a painless test that uses sound waves to look at …

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 …