A CT scan can show blocked arteries. This advanced imaging technique provides detailed views of the body’s internal structures, including blood vessels. A specialized form of CT scan is particularly effective in visualizing arterial obstructions, allowing healthcare providers to assess artery condition and identify potential blood flow issues.
Understanding Arterial Blockages
Blocked arteries, a condition known as atherosclerosis, develop when a sticky substance called plaque builds up on the inner walls of arteries. This plaque is composed of cholesterol, fats, calcium, and other substances found in the blood. Over time, this accumulation can cause the arteries to narrow and stiffen, which restricts the flow of oxygen-rich blood to various organs and tissues throughout the body.
The presence of atherosclerosis is a significant health concern because it can lead to serious cardiovascular issues. Reduced blood flow due to narrowed arteries can result in conditions like heart attacks, strokes, or peripheral artery disease, depending on which arteries are affected. Early detection of these blockages is important for managing the condition and potentially preventing more severe health events.
How CT Scans Visualize Arteries
To visualize arteries and detect blockages, Computed Tomography Angiography (CTA) is used. This procedure combines the detailed imaging capabilities of a standard CT scan with a contrast material. The contrast, often iodine-based, is injected into a vein, usually in the arm or hand.
As the contrast material travels through the bloodstream, it highlights the blood vessels, making them clearly visible on CT images. The CT scanner then uses X-rays to capture multiple cross-sectional images of the targeted area. A computer processes these images to create highly detailed, three-dimensional views of the blood vessels. The contrast dye outlines their internal structure, revealing areas where plaque has built up or where the vessel has narrowed.
What The Scan Shows
A CTA scan provides detailed information about artery condition. It indicates the presence of arterial blockages, pinpointing their location within the vascular system. The scan also reveals the severity of any narrowing or occlusion, showing the degree to which blood flow might be impeded.
Beyond just identifying blockages, CTA can detect calcified plaque deposits, which are a common component of atherosclerosis. These images allow radiologists to assess the extent of plaque buildup. The detailed 3D reconstructions generated from the scan enable a thorough interpretation of the arterial health, providing insights into potential risks.
Following Up After a CT Scan
After a CTA scan, the images are reviewed and interpreted by a radiologist, a physician specializing in medical imaging. The radiologist then sends a report of their findings to the healthcare provider who requested the scan. This provider will discuss the results with the patient, explaining what the scan revealed about their arteries.
The results of the CTA scan are considered alongside the patient’s overall health, symptoms, and medical history. Depending on the findings, the healthcare provider may recommend further diagnostic evaluations to gather more information. This comprehensive assessment guides subsequent medical decisions, which could include lifestyle adjustments or other interventions.