def new_name_file(old_name):
i = id_from_file_name(old_name)
if i not in df_calc.index:
    print(i,"not in dataframe")
    return None
if "accelerated" in df_calc.loc["Description"].lower():
    type_img = "Accelerated"
else:
    type_img = "Normal"
`return(f'{df_calc.loc[i,"Group"]}_{df_calc.loc[i,"Subject"]}_{df_calc.loc[i,"Visit"]}_{type_img}.nii')`