Is there a way to shrink-wrap only a section of a mesh? Is there a way to shrink-wrap only a selection of mesh to another without effecting the whole mesh?

When I shrink wrap a mesh to another mesh, sometimes I lose a lot of data on the other side of my object.
You can add to Vertex Group part of the mesh that should be affected by Shrinkwrap modifier, then choose this group in the modifier itself.