Magnetic Resonance Angiography (MRA)

Magnetic resonance angiography (MRA) is an advanced imaging modality that uses MRI technology to provide detailed visualization of the vascular system. Using a high-resolution magnetic field, radiofrequency pulses, and computer algorithms, MRA captures detailed images of blood vessels throughout the body. To enhance image contrast and delineate vascular structures more clearly, a contrast agent—typically administered intravenously—may be employed.

Unlike traditional angiography, which requires the insertion of a catheter into the vascular system for direct contrast injection, MRA is noninvasive. This distinction not only reduces patient discomfort but also minimizes the risks associated with invasive procedures.

MRA is instrumental in diagnosing and evaluating a range of vascular conditions, including:

• Vascular stenosis or occlusions: Detects areas of narrowing or blockages in blood vessels that may impair blood flow.
• Aorticpathologies: Assesses conditions affecting the aorta, such as stenosis or aneurysms.
• Stroke etiology: Investigates potential vascular causes of stroke, including emboli or arterial irregularities.
• Cardiovascular disease: Evaluates the blood vessels supplying the heart, identifying potential issues related to coronary artery disease.
• Aortic wall hemorrhage: Identifies bleeding within the aortic wall, crucial for diagnosing aortic dissection or aneurysm complications.
• Renal artery stenosis: Assesses narrowing of the renal arteries, which can impact renal function and blood pressure.
• Peripheral artery disease: Examines vascular conditions in the extremities, such as stenosis or occlusions in the arteries of the legs and arms.