What Is C-IMT?

Carotid Intima-Media Thickness Test

C-IMT is a detailed ultrasound scan of the carotid arteries, which supply oxygenated blood to your brain.  C-IMT uses ultrasound images to precisely measure the buildup of plaque between the layers of the carotid arteries down to 1/1,000 of a millimeter. Because C-IMT is so precise, it can detect the buildup of plaque at the earliest stages – before symptoms occur. The entire procedure takes 10 minutes.

Check out our recent video spot on Great Day Colorado KDVR (FOX31 & Channel 2) featuring CorScans’ Medical Director Dr. W. David Luce, M.D. with an in depth look at why C-IMT ultrasound scans are the new gold standard for heart attack and stroke prevention. 

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Know Your Numbers

The C-IMT Ultrasound Scan precisely measures plaque buildup in your carotid arteries down to 1/1,000 of a millimeter. It is noninvasive, painless, affordable and definitive.

Call  720-740-2663  to schedule your scan or book online:


Benefits of C-IMT

Predicts heart disease
and stroke with accuracy.

Quick, easy, painless (no needles) and noninvasive.

Approved by the American
Heart Association.

Know your numbers. Take control of your health.

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IMT: Get the Facts

Intima-Media Thickness (IMT) is a measure of the two innermost layers of the carotid artery. Clinical studies conducted over the last 18 years have shown that after factoring for age, gender, and ethnicity, those individuals with advanced IMT values have a greater risk of cariovascular and cerebrovascular events than those with IMT values judged to be normal for the same age, gender, and ethnicity. 

Your personal IMT report details two measurements:
1) Average mean carotid thickness:  This is the average of at least four measurements of both the left and right carotid arteries, looking at the near and far walls, in the 1 cm portion of the carotid immediately before to the bulb or bifurcation. (where the common carotid artery splits into the internal and external carotid arteries)

2) Average max carotid thickness:  This is the average of at least four of the thickest 1 mm segments in each of the measurements taken.
Each of your measurements will be plotted against normal values for the general population, as determined by large clinical studies. 

Foremost, don’t be alarmed. IMT can be reversed. It should also be considered and assessed in the context of other important measures of cardiac wellness, like weight, cholesterol levels, family history of heart disease, and lifestyle risk factors. 

Next, we believe the best course of treatment – whether pharmaceutical therapy, lifestyle interventions, or no action at all – is the one decided between you and your primary physician. This test is NOT meant to substitute for the assessment and judgement of your physician, who together with you, is best able to consider all of your risk factors and help you to decide on a course of treatment. We suggest you share your scan report with your physician.

Research has shown that factors such as exercise, diet, sleep, stress, vitamin or mineral supplementation and pharmaceutical therapy can each assist in changing your personal risk for atherosclerosis, as evidenced by an above average IMT.

Congratulations. Keep up the good work. Following the guidelines for cardiovascular wellness outlined by organizations like the American Heart Association (AHA) or the American College of Cardiology (ACC), you can and should continue to monitor your diet exercise routines, sleep, stress, supplements, and/or pharmaceutical therapies for maximum benefit. We recommend you have a C-IMT ultrasound scan every year, unless you have been instructed otherwise by your physician.

Here are a few suggested links:  www.americanheart.org and www.acc.org

This is something you should discuss with your physician. We recommend having your IMT checked annually. References to medical journal articles on the topic include:

  1. Greenland, P et al, Prevention V AHA Writing Group Recommendations circulation 2000;101:111-116
  2. Taylor, A et al, Reduction in IMT Thickness andCorrelation to LDL, Circulation 2002;106:2055-2060.
  3. Redberg, RF, 34th Bethesda Conference, Task Force #3, JACC 2003; 41:1886-1888

Clinical research has shown that the arterial wall lining or IMT of the carotid arteries becomes thickened years before plaque develops within the vessel. This increased wall thickness is associated with an increased risk of cardiovascular disease, the leading cause of mortality and disability in the United States today. 

Until recently, measuring cholesterol levels, blood pressure, and diabetes have been some of the options in evaluating the risk of cardiovascular disease. However, recent studies have shown a 95% correlation  between atherosclerosis in the carotid arteries and atherosclerosis present in the coronary arteries. This makes a C-IMT ultrasound scan an important tool for diagnosing patients at risk for cardiovascular disease.

Receive a definitive diagnosis

C-IMT scans go beyond traditional risk factors
to provide definitive, accurate results.