DICOM format contains a lot of information as we saw and sometimes we only need the images, either because the private information of the patient or we need to reduce the size even though the information not as big as the image itself, so we had to remove the metadata of the images since we are not allowed for a non-medical or as engineers to look at the patient's data or we do not need to risk the data to be exposed by mistake to anyone. Mainly we just need the image prat (pixel array) without anything else. Most of the time we have to prepare the dataset to read all the images and store it as one list to feed it to the network, and this process can be different from one and another like the way how the files are organized. Now we have the list contains the .dcm Images1 is the list that contains the images only.