A CT scan (Computed Tomography) is an advanced imaging test that combines a series of X-ray images taken from different angles and uses computer processing to create detailed cross-sectional (sliced) images of bones, blood vessels, and soft tissues inside your body. It provides far more detail than a standard X-ray.
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How It Works:
You lie on a table that slides into a circular CT scanner.
An X-ray tube rotates around your body, capturing multiple images.
A computer assembles these into high-resolution 2D or 3D images, helping doctors visualize internal structures clearly.
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Common Uses:
Detecting tumors or cancers
Diagnosing internal injuries or bleeding
Evaluating stroke or brain trauma
Imaging of lungs, liver, kidneys, and abdomen
Planning surgery, biopsies, or radiation therapy
Monitoring response to treatment
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Procedure:
Duration: usually 10–30 minutes
May involve injection of a contrast dye to highlight blood vessels or organs
The test is painless; you may hear whirring noises from the machine
Minimal preparation is needed, though fasting might be required if contrast is used
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Advantages:
Quick and accurate
Provides both bone and soft tissue details
Useful in emergency situations due to fast results
Helps detect conditions that cannot be seen on regular X-rays
Although CT scans use a small dose of radiation, they are considered safe and extremely valuable for accurate diagnosis and treatment planning in a wide range of medical conditions.