private void SetCurrentImage()
{
var overlays = Convert.ToBoolean(((ComboBoxItem)OverlaysComboBox.SelectedItem).Content.ToString());
var anon = Convert.ToBoolean(((ComboBoxItem)AnnonymizeComboBox.SelectedItem).Content.ToString());
_imgSource = ImageHelper.GenerateImageSource(_dataSets[_currentFrameNo], overlays, anon);
DicomImage.Source = _imgSource.CloneCurrentValue();
ImageCountText.Text = string.Format("{0} / {1} Images", _currentFrameNo + 1, _numberofFrames);
_imgSource = null;
}