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Different Generations of X-ray CT - Essay Example

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The spiral or helical CT generation came about in 1990, and the CTs would capture 3D images…
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Different Generations of X-ray CT
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"Different Generations of X-ray CT"

Download file to see previous pages 1st Generation: Parallel projections
Had a single X-ray source and detector cell to collect data for just a single slice. It produced pencil beam and worked via the translation and rotation process.
2nd Generation: multiple detectors
They had several detectors and the X-ray source emitted radiations in a wide angle. They would obtain multiple scans multiple projections in a single scan.
3rd: Generation: Fan Beam
It had a large array of detectors and would scan in about two seconds. The detector and tube array would rotate around the patient.
4th Generation: A rotating X-ray tube and stationary detector ring
It reduced complexity by reducing motions. Eliminated the translation and rotation motion, had a large fan beam, and had about 4,800 detectors.
5th Generation: Electron Beam CT
It was characterized by a large ring that circled the patient. They would produce electron beams of high energy and capable of scanning in milliseconds. It would produce 17 CT slices every second. ...Download file to see next pagesRead More
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