Cardiac CT, or Computed Tomography, is an advanced medical imaging technique used to visualise the heart and blood vessels. This non-invasive diagnostic test provides detailed, three-dimensional images of the heart’s anatomy and blood flow, enabling healthcare professionals to assess cardiac health, diagnose various heart conditions, and plan appropriate treatments.
During a Cardiac CT scan, the patient lies on a table that is slowly moved into a large, doughnut-shaped machine called a CT scanner. The scanner emits a series of X-ray beams, and detectors on the opposite side of the machine measure the amount of radiation that passes through the body. A computer processes this information to create detailed cross-sectional images (slices) of the heart and surrounding blood vessels. Contrast dye may be injected into a vein to enhance image quality and highlight blood vessels.Interpreting Cardiac CT Findings, Cardiac CT provides valuable information, including:Coronary Artery Assessment:The scan can detect narrowing or blockages in the coronary arteries, indicating coronary artery disease (CAD).Heart Structure::It offers detailed images of the heart’s chambers, valves, and overall structure.Calcium Scoring::Cardiac CT can quantify the amount of calcium deposits in coronary arteries, which is a risk factor for CAD.Tumour Detection::It can identify tumours or abnormalities in the heart.Aortic Assessment:The test evaluates the aorta, detecting conditions like aortic aneurysms or dissections.
Cardiac CT is essential for various reasons:Early Diagnosis:It helps in early detection and diagnosis of heart conditions, allowing for prompt intervention.Risk Assessment:The scan is used to assess an individual’s risk of heart disease, especially in patients with risk factors like high blood pressure or family history.Treatment Planning:Detailed images aid in planning surgeries, interventions, or treatments.Monitoring:Cardiac CT can monitor the progression of heart conditions and the effectiveness of treatments over time.
Here are different types of Cardiac CT scans, including:Coronary CT Angiography (CCTA):Focuses on the coronary arteries to assess for blockages or stenosis.Cardiac CT Calcium Scoring:Quantifies coronary artery calcium to estimate the risk of CAD.Cardiac CT for Structural Assessment:Used to evaluate heart valves, chambers, and congenital abnormalities.
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