Как добавить иконку в treeviewitem

private TreeViewItem GetTreeView(string uid, string text, string imagePath)
{
    TreeViewItem item = new TreeViewItem();
    item.Uid = uid;
    item.IsExpanded = false;
    // create stack panel
    StackPanel stack = new StackPanel();
    stack.Orientation = Orientation.Horizontal;
    // create Image
    Image image = new Image();
    image.Source = new BitmapImage
        (new Uri("pack://application:,,/Images/" + imagePath));
    image.Width = 16;
    image.Height = 16;
    // Label
    Label lbl = new Label();
    lbl.Content = text;

    // Add into stack
    stack.Children.Add(image);
    stack.Children.Add(lbl);
    // assign stack to header
    item.Header = stack;
    return item;
}