What is an MRI Brain Angio?
An MRI Brain Angiography (Brain Angio) is a non-invasive imaging technique used to examine the blood vessels in the brain, including arteries and veins. It provides a clear view of the brain’s vascular system without the need for surgery or invasive procedures. MRI Brain Angio can help detect problems like:
1] Aneurysms: Abnormal bulging of blood vessels that can rupture and cause life-threatening conditions like a stroke.
2] Arteriovenous Malformations (AVMs): Abnormal tangles of blood vessels that may lead to bleeding in the brain.
3] Brain Tumors: Tumors that may affect the blood vessels in the brain.
4] Stroke or Transient Ischemic Attack (TIA): To detect areas of reduced blood flow or blockages that may indicate the presence of a stroke or a risk of one.
5] Vascular Malformations: Abnormalities in the blood vessels that can lead to chronic conditions or complications.
The MRI Brain Angio typically uses a contrast dye, which is injected into the bloodstream to enhance the visibility of blood vessels, allowing radiologists to observe even the smallest and most intricate vessels in the brain.
What is MRI Neck Angio?
An MRI Neck Angiography (Neck Angio) focuses on imaging the blood vessels in the neck, including the carotid arteries, jugular veins, and other important vessels that supply blood to the brain. The carotid arteries, which run along either side of the neck, are particularly significant as they deliver blood to the brain. Blockages, narrowing, or abnormalities in these arteries can significantly affect brain health.
MRI Neck Angio can detect a variety of conditions that may impact blood flow to the brain, including:
2] Carotid Artery Stenosis: Narrowing of the carotid arteries, which can lead to reduced blood flow to the brain and increase the risk of stroke.
3] Plaque Buildup: Atherosclerosis, or plaque buildup in the carotid arteries, can cause narrowing and potentially lead to a stroke.
4] Aneurysms: Similar to brain aneurysms, the neck arteries can also experience abnormal bulging or ballooning.
5] Dissection: A tear in the artery wall that can lead to severe complications, including strokes.
MRI Neck Angio is commonly used when there is a suspicion of carotid artery disease or when a patient is at risk for stroke.
How Does MRI Brain Angio & Neck Angio Work?
Both MRI Brain Angio and Neck Angio involve a similar process, with slight variations depending on the focus area. Here’s how the procedures generally work:
1] Preparation: Before the MRI scan, you will be asked to remove any metal objects (e.g., jewelry, watches, or piercings) since metal can interfere with the MRI. In some cases, you may need to refrain from eating or drinking for a few hours if contrast dye is used. A contrast agent (gadolinium-based) will be injected into your vein, typically in the arm, to enhance the visibility of blood vessels.
2] During the Procedure: You will lie down on an MRI table, which will slide into the MRI machine. The MRI scanner is a large, tube-shaped device, and the area being scanned will be positioned inside the machine. During the scan, it’s important to remain very still to ensure clear images. MRI scans can last anywhere from 30 to 60 minutes, depending on the complexity of the scan. You may hear loud tapping or thumping noises from the MRI machine, but earplugs or headphones are usually provided.
3] After the Procedure: Once the scan is complete, the images will be reviewed by a radiologist, who will prepare a detailed report for your physician. You can resume your normal activities immediately unless you have received a sedative.
