Exposure index on fuji systems

Hi there, I work at a college and we recently acquired new fuji DR systems. (My speciality is MR)

We still have our older system and teachers are used to teach students about the fuji exposure index "S" value which have to be around 200 to 400.

Now we are doing tests with the new systems and can't seem to get a well exposed image with an acceptable "S" value. (ex: well exposed hand gives us an "S" value of 62) To reach 200, the structure needs to be underexposed.

Now we are being told by the fuji app specialists that the "S" value don't matter anymore and we should focus on EI / DI now. I get that it is the new standard but it seems weird to me that "S" values are still displayed and now systematically out of range. Furthermore, they are more prominently displayed than EI / DI values.

So now, we gotta tell students to discard "S" values on new systems but not on our older systems. This is confusing for me and can't imagine how it will be for them.

I am wondering if they forgot to do a calibration for "S" values when installing these new systems.

Any specialist can help me out here ?

Thanks

submitted by /u/LunaticCalm29
[link] [comments]

source https://www.reddit.com/r/Radiology/comments/iip2x4/exposure_index_on_fuji_systems/