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CT ANGIOGRAPHY
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CT Angiography (CTA)
CT Angiography (CTA) is a diagnostic imaging technique used to visualize the blood vessels throughout the body, particularly in the heart, brain, lungs, abdomen, and extremities. It helps in diagnosing and evaluating vascular conditions.
Process:
During a CT Angiography scan, the patient is injected with a contrast dye intravenously, which highlights the blood vessels. The patient then undergoes a series of rapid CT scans, capturing detailed cross-sectional images of the blood vessels. These images are processed by a computer to create comprehensive pictures of the vascular system.
Uses:
- Diagnosis of Vascular Diseases: CTA is used to detect and evaluate conditions such as arterial blockages, aneurysms, or dissections.
- Assessment of Stroke Risk: It helps in assessing the blood flow to the brain and detecting potential causes of stroke, such as narrowed or blocked arteries.
- Evaluation of Aortic Diseases: CTA is instrumental in diagnosing aortic aneurysms, aortic dissections, or other abnormalities of the aorta.
- Planning Endovascular Procedures: Surgeons use CTA images for planning endovascular interventions such as angioplasty or stent placement.
- Screening for Peripheral Arterial Disease (PAD): CTA can identify narrowing or blockages in the arteries of the arms or legs associated with PAD.
Others:
- High-Resolution Imaging: CTA provides detailed images of blood vessels, allowing for precise diagnosis and treatment planning.
- Non-Invasive Alternative: CTA is a non-invasive procedure compared to traditional angiography, reducing patient discomfort and recovery time.
- Guidance for Vascular Surgery: CTA findings assist vascular surgeons in planning complex surgical procedures.
