mri | Axon Framework flow visualization tool | Data Visualization library

I'm quite new to DICOM and I'm having difficulties in understanding the difference between rescaling and scaling factors.

To transform the stored values, in a MRI DICOM image, into a quantitatively meaningful image, it seems that I should use the Rescale Slope (0028, 1053) and the Rescale Intercept (0028, 1052).

However, for the same transformation, some MRI manufacturers (e.g. Philips) provide an additional Private Tag - the Scale Slope. In that case, the transformation requires the use of, not only the Rescale Slope and Rescale Intercept, but also the Scale Slope.

I can't understand what exactly is this Scale Slope. Can anyone please provide any help?

I want to do a multiple imputation with IterativeImputer.

Here is the dataset (the original is from https://www.kaggle.com/jboysen/mri-and-alzheimers) :

alz_df_imp_categorical

The variables to impute are "educ" and "ses". As they are categorical I've choose to use a classifier (KNeighborsClassifier from sklearn). Predictors are continuous (except "sex").

This is the code :

I have been trying to feed a dataset of brain MRI images (IXI dataset) to a ConvNet, however, some of the images have 140 channels some others 150 channels. How can I make all the images have the same number of channels so that I won't run into trouble with a fixed CNN input shape? I am using nibabel lib for reading the .nii files.

EDIT: I don't have much knowledge about MRI images, what channels should be discarded?

does anyone know why the error

"ERROR: While executing gem ... (Errno::EACCES)

Permission denied @ rb_sysopen - C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-1.2.3-x64-mingw32/lib/2.7/pg_ext.so"

appears while trying to install pg gem in Windows 10?
I tried running gem install pg with admin privileges in command prompt in my application folder, but it throws this error.. I also checked out site https://rubygems.org/gems/pg and there copied how to install pg via command line, and what to include in Gemfile.
Here is my gem file:

I need help with image preprocessing part. I have a MRI image of brain with Alzheimer's disease. I need to remove cranium (skull) from MRI and then crop that all the region which is around brain. How could I do that in python? with image processing. I have tried using openCV Thanks' a lot.

This is the code which I tried:

here the code

I'm trying to create an empty pandas.Dataframe with a Multi-Index that I can later fill columnwise with my data. I've looked at other answers (here and here), but they all work with data that does not fill in columnwise, or that is somehow connected in the different columns.

The information I want to be contained in the Multi-Index looks like this:

Im running ruby version 2.6.1 with docker. Rake gem is version 13.0.1.
Whenever I tried docker-compose up, it always fails and throws this error everytime:
This error did not exist before.

I need to measure tumour volumes before and after a treatment. I want to construct the recording of the volumes by date efficiently and then analyse the tumour doubling time (the time the tumour takes to double in volume) using Pandas or similar. I am a surgeon and treat acoustic neuromas with Gamma Knife radiosurgery.The tumours typically grow at 1 to 2 mm each year in diameter. They are usually followed up with MRI scans until they show growth (in the UK) and are treated and are then followed up by MRI scans for 10 years at least.

I'm sure the data collection is relatively simple but want to optimise it for efficiency afterwards. I was thinking of just using Excel and then importing the CSV into Pandas. The spreadsheet needs to be simple because it will be on a network drive within the hospital accessible from any PC for a number of people to do the volumetric assessment. This is done by drawing around the tumour on individual slices of the MRI scan and then getting the MRI scan to compute the volume of the regions of interest.

I am fairly novice at Python and Pandas. The complexity for me will be to do the datetime calculations to look at pre-treatment growth, and then post treatment growth and calculate volume doubling times.

I need to do this for about 250 patients so the time-consuming element is the volumetric assessment. On average there will be 3 to 4 pre-treatment scans and up to 10 post-treatment scans, so the data frame will be 250 records with about 15 pairs of date and volume paired columns, or similar. Any suggestions welcome. I was just going to do it in FileMaker pro but I don't have a site license et cetera et cetera.

I am more of a Java programmer and still somewhat new to development (2 years or so, can write Java code & web apps just fine) however the company I work for has 4 Rails applications and was asked to get this application working called CtrlPanel. I have been having to learn Ruby on Rails in order to help get this issue with this app fixed and get it working.

I have been working on this problem for over a week all day long every day and nothing I do is fixing it.

I fixed everything to the point the app comes up, web server runs serves the pages but all views are white screens as long as this application.html.haml file is present. I re-wrote the file with very basic bootstrap and it sort of works but nothing looks right. The problem seems to stem from 1 single like that simply says: = javascript_include_tag "application"

I have been all over the internet and have tried every single fix from changing coffee-script-source to v1.8.0 as I read Windows has an issue with newer rails and that file, I have tried every variation of changing it from application to default, and every type of ending you can think of no matter what I do it gives me this error message which I can not seem to find.

I am not even sure WHAT that line does, I assume it has to do with the new Google Maps API and I verified the key is valid and it was working before.

This is the error is it giving it says the line with "= javascript_include_tag" "application" giving error ExecJS::RuntimeError at / SyntaxError: [stdin]:1:1: unexpected //=

I am running a PC on Windows 10 20H2 x64 UEFI ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x64-mingw32] Rails 6.1.3

(I did also install Ubuntu on another machine and it gives the exact same error, also gives the same error on another Windows machine)

The app is working IF I delete the "application.html.haml" file and put in a skeleton basic version all of the other views start working but of course none of them look right no menus no bootstrap no nothing.
Here is the application.html.haml file.