You can use dcim images to convert them to png format
The input parameters can be changed using the command line :
multi_dcm_to_png.py -i <input_dir> -o <output_dir>
For running example :
python3 multi_dcm_to_png.py -i images_dcm/ -o images_png/
The dicom pictured ct image contains all the patient's information. You can edit the code to access the patient's information (age, name, etc.). With the 14th line in the code, you can view what information it contains with print. The images used are taken from public images