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Computed Tomography (CT) questions answered correctly 100% .
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Computed Tomography (CT) questionsanswered correctly 100% .
CT ANS - Series of x-ray images, forming slices of blood vessels, bone and soft tissue.
Using CT ANS - 1. Diagnose muscle and bone disorders.
2. Pinpoint the location of a tumour, infection or blood clot.
3. Guide procedures in surgery.
4. Detect and monitor diseases e.g.- cancer.
5. Visualise bloody and blood vessels.
How CT works ANS - X-ray tube rotates around the patient.
Emits photons between 20-150keV.
The beam will image a slice of the body whilst rotating.
The photons interact with matter and the ones that pass through the patient will reach the detector.
Detector = measures the amount of photons attenuated at different angles → allows for 3D imaging.
Each voxel (measurement of volume, like a pixel) on the image is assigned a Hounsfield unit.
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