Podcast
Questions and Answers
What distinguishes third-generation CT scanners from second-generation scanners?
What distinguishes third-generation CT scanners from second-generation scanners?
- Translation motion and single detector
- Multiple detectors and stationary detectors
- Pencil beam and single detector
- Fan beam and rotating detectors (correct)
Which characteristic is unique to fourth-generation CT scanners?
Which characteristic is unique to fourth-generation CT scanners?
- Rotating x-ray source inside a fixed detector array (correct)
- Translation motion and single detector
- Fan beam and rotating detectors
- Electron beam scanning
What is a key feature of fifth-generation CT scanners?
What is a key feature of fifth-generation CT scanners?
- Curved detector array with several hundred detectors
- Fan beam and rotating detectors
- Translation motion with multiple detectors
- Electron beam scanning with a stationary detector array (correct)
How do third-generation CT scanners acquire projection data for a single image?
How do third-generation CT scanners acquire projection data for a single image?
Why are the reconstruction algorithms for second-generation CT scanners simpler compared to third-generation ones?
Why are the reconstruction algorithms for second-generation CT scanners simpler compared to third-generation ones?
What is a characteristic of first-generation CT systems?
What is a characteristic of first-generation CT systems?
Why was the scanner in the first generation limited?
Why was the scanner in the first generation limited?
What advantage does the highly collimated beam provide in first-generation CT systems?
What advantage does the highly collimated beam provide in first-generation CT systems?
What type of scan geometry do second-generation CT systems use?
What type of scan geometry do second-generation CT systems use?
Why does the second generation of CT systems have an advantage over the first generation?
Why does the second generation of CT systems have an advantage over the first generation?
What was one of the challenges faced by the first-generation CT systems?
What was one of the challenges faced by the first-generation CT systems?
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