Different scans

[Drew2128]

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I am not sure where to ask these types of questions. I am starting medical school next semester and I know what the different scans look like but I get confused when you would use a CT scan vs an MRI vs ultrasound. I am just curious if someone could direct me to a website or tell me. For example, you would use this type of scan for cancer, this type of scan for crohns disease. I just see all these diseases and they each have their own way of Diagnosing it with scans but is there a way to group different diagnosis's to certain scans. Like bowel you will usually use this type of scan first...

Thank you guys laugh at me 🙂 lol

 

[DrBowtie]

ACR appropriateness criteria.

 

[robertsparckles]

Use ACR Criteria to detect which one scan should be used