Binwidth Optimization

Community Radiomics
1

Hello everyone,

I’m trying to extract the radiomic features from MR images using Pyradiomics extension on 3DSlicer.

I know that the default setting for the binwidth is 25. However, I am not sure which value is more suitable for my studies. How can I optimize this value? Some features cannot be calculated when I use the default value.

Thank you for your help.

2
  1. Extract firstorder features for your dataset, with all preprocessing you intend to use.
  2. Look at the value for firstorder - Range; choose a binwidth so, that for the majority of your scans, the binwidth will result in ~10-100 bins. So if your range is, saty [50 - 500], use binwidth 5.
3

Thank you for your kind answer.

I want to ask again, just to be sure.

In my FO Range, my minimum number is 1.46 and my maximum number is 7.58. What’s your suggestion for binwidth value?

4

In that case, I would advise a binWidth of about 0.1, this will yield 15 bins for your minimum and 76 for your maximum, both of which are in the range of [10, 100] bins.

5

What if we have a range of [50 12000] or [10 1000]? We can garantee that both the min and max stand on the [10 100] interval. What should we do in those cases?