Regarding CT generations: a. In first-generation scanners, the gantry

1.	Regarding CT generations: a. In first-generation scanners, the gantry rotated 360o as well as the single detector b. The second-generation scanner is a rotate–translate scanner c. In second-generation scanners, the detectors can cover the whole cross-section in one radiation d. In third-generation scanners, the patient-to-detector distance is greater than in other generation scanners e. In third-generation scanners, data acquisition is continuous
Answer» a. False. In first-generation scanners, the X-ray source and single detector both moved across the scanning plane at 180° rotation. b. True. c. False. In second-generation scanners, there are around 30 detectors, which are not enough for the whole cross-section. d. False. In fourth-generation scanners, the patient-to-detector distance is greater than in other generations. e. True. In third-generation scanners, data collection is continuous for the full 360°.

Regarding CT generations: a. In first-generation scanners, the gantry rotated 360o as well as the single detector b. The second-generation scanner is a rotate–translate scanner c. In second-generation scanners, the detectors can cover the whole cross-section in one radiation d. In third-generation scanners, the patient-to-detector distance is greater than in other generation scanners e. In third-generation scanners, data acquisition is continuous

Answer»

a. False. In first-generation scanners, the X-ray source and single detector both moved across the scanning plane at 180° rotation.

b. True.

c. False. In second-generation scanners, there are around 30 detectors, which are not enough for the whole cross-section.

d. False. In fourth-generation scanners, the patient-to-detector distance is greater than in other generations.

e. True. In third-generation scanners, data collection is continuous for the full 360°.

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