Refactor DICOM file reading to use dcmread for improved compatibility across models and helpers

atlas/models.py

@@ -1470,7 +1470,7 @@ class UncategorisedDicom(models.Model):
     def get_basic_dicom_tags(self, dataset=None):
         try:
             if dataset is None:
-                dataset = pydicom.read_file(self.image)
+                dataset = pydicom.dcmread(self.image)
             to_include = (
                 "StudyDescription",
                 "Modality",

generic/models.py

@@ -316,14 +316,14 @@ class SeriesImageBase(models.Model):
 
     def get_dicom_json(self):
         try:
-            json = pydicom.read_file(self.image).to_json()
+            json = pydicom.dcmread(self.image).to_json()
         except pydicom.errors.InvalidDicomError:
             return {}
         return json
 
     def get_dicom_info(self):
         try:
-            info = pretty_print_dicom(pydicom.read_file(self.image))
+            info = pretty_print_dicom(pydicom.dcmread(self.image))
         except pydicom.errors.InvalidDicomError:
             info = "File is not a dicom."
         return info

helpers/pydicom_PIL.py

@@ -4,7 +4,7 @@
 Usage:
 >>> import pydicom
 >>> from pydicom.contrib.pydicom_PIL import show_PIL
->>> ds = pydicom.read_file("filename")
+>>> ds = pydicom.dcmread("filename")
 >>> show_PIL(ds)
 Requires Numpy:
     http://numpy.scipy.org/