Can anyone explain collimation versus slice thickness in the context of imaging lung nodules on CT?

I'm a medical student and don't have much physics background at this point, so a simplified explanation would be very helpful. I'm trying to understand what "1-2mm collimation" means in the context of imaging lung nodules. I'm assuming it's not the same as slice thickness otherwise they would have written it? However the main textbook I'm using doesn't explain it, and the things I found on google are quite technical and/or vague. Thanks.

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Hello folks! We are a group of students from Karolinska Institutet and Stockholm University (Sweden). We are conducting a short survey (it should not take more than 10 minutes of your time) to evaluate an Artificial Intelligence framework for evaluating medical imaging and, in particular, the effect that explainability can have on clinicians' attitudes toward it. We welcome anyone who interacts with medical imaging to take our survey, so please, feel free to do it even if you are still a student or an intern! If you know someone who works in the field, please, pass them the survey. It would help us greatly. https://bit.ly/RTEX_survey Thanks in advance to all of you! submitted by /u/francozzz [link] [comments] source https://www.reddit.com/r/Radiology/comments/r2ratp/ai_for_radiology_a_survey/

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submitted by /u/ctisus [link] [comments] source https://www.reddit.com/r/Radiology/comments/111ej8m/fibrous_dysplasia_of_the_skull/

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submitted by /u/Ok_Combination_889 [link] [comments] source https://www.reddit.com/r/Radiology/comments/z83wm1/multigated_acquisition_muga_procedure_in_which/

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