Ultrasounds
A leg ultrasound is a safe, painless imaging test that uses high-frequency sound waves to see blood flow and check the large arteries and veins in your legs. It helps doctors find blood clots, poor circulation, and blocked blood vessels.
How Do Ultrasound sWork?
Venous Ultrasound
Looks for deep vein thrombosis (DVT), which is a dangerous blood clot inside a deep vein. It also checks for weak vein valves that cause varicose veins.
Arterial ultrasound
Looks for narrowed or blocked arteries caused by plaque buildup, known as peripheral artery disease (PAD).
What are Ultrasounds For?
Blood Flow
Use Doppler sound waves to check how blood moves through vessels and the heart.
Procedure Help
Guide needles safely during biopsies or fluid drains.
What are the Benefits of Ultrasounds
Safety advantages
No radiation: Unlike X-rays, CT scans, or angiograms, ultrasound uses sound waves, not ionizing radiation, making it safe for repeated use
Safe during pregnancy: This is why it's the primary imaging tool for monitoring fetal development
Minimal to no risks: Non-invasive with essentially no known harmful side effects when used appropriately
Practical advantages
Real-time imaging: Shows live movement — useful for watching heart valves function, blood flow direction, or a fetus moving
No preparation for many exams: Many ultrasounds require little to no prep, unlike some CT or MRI scans
Widely accessible: Machines are portable, relatively affordable, and available in many clinical settings, including bedside/point-of-care use in emergency rooms
Fast: Most exams take 15–45 minutes and results are often available quickly
No sedation needed: Patients remain fully awake and comfortable throughout
Can be done repeatedly: Useful for monitoring conditions over time (e.g., tracking a tumor, following pregnancy progress, monitoring blood flow after a procedure)
Diagnostic capabilities
Organ evaluation: Visualizes soft tissues and organs like the liver, kidneys, gallbladder, thyroid, and pancreas
Blood flow assessment (Doppler ultrasound): Measures blood flow speed and direction — useful for detecting blood clots, blockages, or venous insufficiency
Cardiac function (echocardiogram): Evaluates heart structure, valve function, and pumping efficiency
Pregnancy monitoring: Tracks fetal growth, position, heartbeat, and detects potential complications
Guides procedures: Used in real-time to guide needle biopsies, injections, or catheter placements with precision
Detects masses/cysts: Can distinguish between solid masses, fluid-filled cysts, and other abnormalities
Musculoskeletal imaging: Evaluates tendons, ligaments, and muscles for tears or inflammation
Clinical impact
First-line screening tool: Often used before more invasive or expensive tests like CT, MRI, or angiography
Helps avoid unnecessary invasive procedures: Can rule out certain conditions non-invasively
Emergency assessment: Quick bedside ultrasounds (like FAST exams) help detect internal bleeding or organ damage in trauma situations
Are You a Candidate for Ultrasounds?
Vascular checks
Evaluating blood flow or blockages in the veins and arteries.
