Add image to smart art layout through c#?

I am wondering is there a way to add image to smart art through c#. So for with google search I found how to add text like below

PowerPoint.Shape shape= oSlide.Shapes.AddSmartArt(oSlide.Application.SmartArtLayouts[3], 10, 125);

shape.SmartArt.Nodes[1].TextFrame2.TextRange.Text = "check";

But I am not sure how to include picture