Apply importing suggestions from code review
importing
@@ -20,9 +20,9 @@ from typing import Sequence, Union
from pymedphys._imports import streamlit as st
-import numpy as np
+from pymedphys._imports import numpy as np
-import pydicom
+from pymedphys._imports import pydicom
from pydicom.errors import InvalidDicomError
from pymedphys._dicom.coords import xyz_axes_from_dataset
