Can an MRI scan detect blocked arteries?

As a medical imaging expert, I can tell you that MRI, or Magnetic Resonance Imaging, is a powerful tool for visualizing detailed images of the body's internal structures. When it comes to detecting blocked arteries, an MRI can indeed be used to assess blood flow and identify areas where there may be a reduction due to narrowing or blockage. This type of MRI is often referred to as MRI angiography, which specifically focuses on the blood vessels. However, it's important to note that while MRI can provide valuable information about blood flow and vessel health, it may not always be the first choice for detecting blocked arteries, especially in the coronary arteries of the heart. The gold standard for diagnosing coronary artery disease is typically coronary angiography, which is an invasive procedure that allows for direct visualization of the coronary arteries and can also be used to perform interventions if necessary. For the brain, MRI is an excellent diagnostic tool for identifying stroke, aneurysms, and other brain abnormalities, as it can detect changes in the brain's structure and function that may be associated with these conditions. In summary, while MRI can detect blocked arteries, especially in larger vessels like those supplying the brain, other imaging modalities like coronary angiography may be more appropriate for certain types of arterial blockages, such as those in the coronary arteries.

MRI of the heart lets your doctor see if your heart is damaged from a heart attack, or if there is lack of blood flow to the heart muscle because of narrowed or blocked arteries. MRI of the brain is used to diagnose stroke, aneurysm and other brain abnormalities.