Remove textbox and add picture

How can I find a textbox (by the text), remove it and its parent picture canvas, and insert an image where the textbox originally is? Right now, my code removes only the textbox but not the parent picture canvas. If I do builder.currentnode.parent.remove(), it removes the textbox and the image I inserted. Is there a better way to do this?

For Each s As Words.Section In doc.Sections

For Each p As Words.Paragraph In s.Body.Paragraphs

For i As Integer = p.ChildNodes.Count - 1 To 0 Step -1

Dim cNode As Words.Node = p.ChildNodes(i)

If cNode.NodeType = Words.NodeType.Shape Then

Dim sh As Words.Shape = DirectCast(cNode, Words.Shape)

If sh.Range.Text.ToLower.IndexOf(tbName) > 0 Then

builder.MoveTo(cNode)

builder.CurrentNode.Remove()

builder.InsertImage(GetImage())

builder.MoveTo(cNode)

builder.CurrentNode.Remove()

Exit For

End If

End If

Next

Next

Next

Please provide the sample document illustrating your task. Our current API has limited functionality on manipulating images. But I will still check if it is possible to resolve your task with the current API.