Updated:
by
Aslan Amirian, MD
Medically reviewed by Aslan Amirian, MD
If your legs ache, feel heavy, or swell by the end of the day, you may think it is just part of getting older or standing too long. But these symptoms can also be signs of chronic venous insufficiency (CVI), a common vein condition that affects an estimated 25 million adults in the United States, with nearly 6 million living with more advanced forms of the disease.
Despite how common it is, many people do not receive a proper diagnosis until the condition has already caused visible, uncomfortable, or even dangerous changes in their legs. Additionally, venous disease is often perceived as cosmetic, yet symptoms can be debilitating and are frequently underdiagnosed, misdiagnosed, or mismanaged.
CVI occurs when the valves in your leg veins stop working properly, allowing blood to pool in the legs instead of returning to the heart. Over time, this can cause discomfort, swelling, skin changes, and even slow-healing wounds.
Because many vein symptoms resemble those of other conditions, CVI cannot be diagnosed solely from symptoms or a visual exam. That is why vein specialists use a painless imaging test called a duplex ultrasound, considered the gold standard for diagnosing vein disease.
We consulted Aslan Amirian, MD, lead physician at Center for Vein Restoration (CVR) locations in our Alpharetta, Georgia, and Canton, Georgia vein clinics, to explain how duplex ultrasound works and why early diagnosis matters.
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Your leg veins have a tough job. They have to work against gravity to return blood to the heart. To do this, they rely on tiny one-way valves in the veins to keep blood moving upward and prevent it from flowing backward.
When those valves weaken or fail, blood flows backward and collects in the lower legs. This increases pressure in the veins, a condition called venous hypertension, according to the Centers for Medicare and Medicaid Services (CMS.gov), which can lead to worsening symptoms over time.
CVI is more than just visible varicose veins. It represents the full spectrum of chronic venous disease, which can affect circulation and quality of life, ranging from mild swelling and discomfort to more serious complications if left untreated.
Common symptoms of CVI include:
Of those living with chronic venous disease, approximately 20 percent will eventually develop venous ulcers. According to the National Library of Medicine, these slow-healing wounds can significantly impact a person's ability to work and participate in daily activities, resulting in diminished quality of life and financial limitations: approximately 2 million workdays per year are lost due to venous ulcer-related disability, and more than 12 percent of workers with venous ulcers retire prematurely as a result.
Many CVI symptoms can look similar to arthritis, tendonitis, lymphedema, or peripheral artery disease problems.
Even visible varicose veins only tell part of the story.
A physical exam and thorough health history of symptoms help identify possible vein disease, but they cannot show how blood is flowing inside the veins or whether the valves are working correctly.
That is where duplex ultrasound becomes essential.
A duplex ultrasound is a painless imaging test that uses sound waves, not radiation, to create images of your veins and track blood flow in real time. According to the U.S. Food and Drug Administration, it has been used for over 20 years and has an excellent safety record.
The test helps vein specialists:
During the exam, a vascular sonographer moves a handheld device over the skin using warm gel. The test is painless, noninvasive, requires no needles or dye, and usually takes 30 to 60 minutes to complete.
Chronic venous insufficiency is a progressive condition, meaning it tends to get worse over time without treatment. If you are experiencing leg pain, swelling, skin changes, or visible varicose veins, the right time to act is now.
The experienced vein specialists at Center for Vein Restoration are here to evaluate your symptoms, provide an accurate diagnosis, and walk you through your options.
The main goal of a venous duplex ultrasound is to detect venous reflux, meaning blood flowing in the wrong direction.
The exam evaluates both the superficial veins (veins lying between the skin and the underlying muscles, including the great, small, and accessory great saphenous veins) and the deeper veins within the leg muscles.
During the exam, the sonographer may ask you to stand or perform simple breathing maneuvers to help reveal hidden vein disease. According to the National Library of Medicine (NIH), this is to recreate the conditions that contribute to the venous reflux. Gravity and muscle relaxation reveal valve problems that would not be apparent when lying down.
A duplex ultrasound combines two technologies into a single exam. The first is standard ultrasound imaging, which, according to the U.S. Food and Drug Administration, has been used for over 20 years and has an excellent safety record. It uses high-frequency sound waves (not radiation) to create real-time pictures of the structures inside your body. The second is Doppler imaging, which tracks the speed and direction of blood moving through your veins.
Together, these technologies allow your vein specialist to see both the anatomy of your veins and how blood is actually flowing through them in real time. Duplex ultrasound can delineate venous anatomy, valvular abnormalities, and reflux, and the extent and pattern of disease, directly informing treatment planning. The test helps vein specialists:
The exam is painless, requires no needles or contrast dye, and involves no radiation exposure. A trained vascular sonographer uses a handheld transducer and warm gel to image the veins through the skin. Most patients find the experience comfortable and unremarkable, and the exam typically takes 30 to 60 minutes.
Ultrasound helps physicians tailor treatment to the specific characteristics of each patient's veins.
At CVR, duplex ultrasound does not stop at diagnosis. It also guides minimally invasive procedures such as endovenous laser ablation, radiofrequency ablation, and ultrasound-guided sclerotherapy, and adhesive ablation, providing real-time imaging to ensure precision and safety throughout each treatment. It is then used again after the procedure to verify successful results, identify any complications, and determine the cause of any recurrence.
Current clinical guidelines from the Society for Vascular Surgery, the American Venous Forum, and the American Vein and Lymphatic Society are clear: duplex Doppler ultrasound is the diagnostic test of choice for evaluating venous reflux and planning treatment in patients with chronic venous disease.
At Center for Vein Restoration, the nation's largest physician-led vein center, a duplex ultrasound is a standard part of every initial vein evaluation.
Your CVR physician will:
Because no two patients have identical venous anatomy, careful ultrasound mapping of the venous system ensures that treatment reflects your individual situation rather than a one-size-fits-all approach.
CVR's board-certified vein specialists perform thousands of vein evaluations and treatments every year. If you have been living with leg pain, swelling, skin changes, or visible varicose veins, early evaluation can help prevent symptoms from getting worse. Take the first step today and schedule a consultation with a CVR vein specialist near you.
To schedule a consultation at a CVR location near you, call CVR at 240-249-8250 or schedule a consultation below. ⤵️
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