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What does changing scan thickness in modern CTs really do?

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We use a GE Revolution in the hospital where I'm doing my training. I can tell it's not coupling the detectors because pitch and scan time stay the same, and also because I can alway retro at the minimum thickness whatever slice thickness I choose. Only thing that changes is the dose, that halves as the thickness doubles.

submitted by /u/Ajkenny
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source https://www.reddit.com/r/Radiology/comments/t2mmko/what_does_changing_scan_thickness_in_modern_cts/
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