diff --git a/invesalius/control.py b/invesalius/control.py
index 5a03546..00674d6 100644
--- a/invesalius/control.py
+++ b/invesalius/control.py
@@ -373,8 +373,7 @@ class Controller():
         self.Slice.spacing = proj.spacing
 
         Publisher.sendMessage('Load slice to viewer',
-                        (proj.imagedata,
-                        proj.mask_dict))
+                        (proj.mask_dict))
 
         
         Publisher.sendMessage('Load slice plane') 
diff --git a/invesalius/data/viewer_slice.py b/invesalius/data/viewer_slice.py
index c923117..6f5497a 100755
--- a/invesalius/data/viewer_slice.py
+++ b/invesalius/data/viewer_slice.py
@@ -845,8 +845,8 @@ class Viewer(wx.Panel):
         self.interactor.Bind(wx.EVT_SIZE, self.OnSize)
 
     def LoadImagedata(self, pubsub_evt):
-        imagedata, mask_dict = pubsub_evt.data
-        self.SetInput(imagedata, mask_dict)
+        mask_dict = pubsub_evt.data
+        self.SetInput(mask_dict)
 
     def LoadRenderers(self, imagedata):
         number_renderers = self.layout[0] * self.layout[1]
@@ -911,7 +911,7 @@ class Viewer(wx.Panel):
         self.cursor_ = cursor
         return cursor
 
-    def SetInput(self, imagedata, mask_dict):
+    def SetInput(self, mask_dict):
         self.slice_ = sl.Slice()
 
         max_slice_number = sl.Slice().GetNumberOfSlices(self.orientation)
@@ -921,7 +921,7 @@ class Viewer(wx.Panel):
         self.slice_data = self.create_slice_window()
         self.slice_data.SetCursor(self.__create_cursor())
         self.cam = self.slice_data.renderer.GetActiveCamera()
-        self.__build_cross_lines(imagedata)
+        self.__build_cross_lines()
 
         # Set the slice number to the last slice to ensure the camera if far
         # enough to show all slices.
@@ -936,7 +936,7 @@ class Viewer(wx.Panel):
         ## Insert cursor
         self.SetInteractorStyle(const.STATE_DEFAULT)
 
-    def __build_cross_lines(self, imagedata):
+    def __build_cross_lines(self):
         renderer = self.slice_data.overlay_renderer
 
         cross = vtk.vtkCursor3D()
diff --git a/invesalius/project.py b/invesalius/project.py
index bde0ee9..96ae4d1 100644
--- a/invesalius/project.py
+++ b/invesalius/project.py
@@ -22,7 +22,6 @@ import glob
 import os
 import plistlib
 import shutil
-import stat
 import tarfile
 import tempfile
 
@@ -35,7 +34,6 @@ import data.mask as msk
 import data.polydata_utils as pu
 import data.surface as srf
 from presets import Presets
-from reader import dicom
 from utils import Singleton, debug
 import version
 
@@ -47,18 +45,13 @@ class Project(object):
     def __init__(self):
         # Patient/ acquistion information
         self.name = ''
-        self.dicom_sample = ''
         self.modality = ''
         self.original_orientation = ''
         self.window = ''
         self.level = ''
 
-        # Original imagedata (shouldn't be changed)
-        self.imagedata = ''
-
         # Masks (vtkImageData)
         self.mask_dict = {}
-        self.last_mask_index = 0
 
         # Surfaces are (vtkPolyData)
         self.surface_dict = {}
@@ -107,7 +100,6 @@ class Project(object):
         output
             @ index: index of item that was inserted
         """
-        #self.last_mask_index = mask.index
         index = len(self.mask_dict)
         self.mask_dict[index] = mask
         return index
--
libgit2 0.21.2