  In the last years much work has been done to learn about the properties of
the $\rho$-meson in nuclear matter. In a calculation of the in-medium
spectralfunction of the $\rho$ we find that it is strongly modified by baryonic
resonances, especially the $D_{13}(1520)$, through its coupling to
resonance-hole states. In order to test the predictions of a model for the
in-medium properties of the $\rho$-meson so far mostly heavy-ion collision have
been used. We argue that the coherent photoproduction of $\rho$-mesons yields
additional information about the nature of the medium modification. It can be
shown that the production amplitude is sensitive on the momentum dependence of
the $\rho$-selfenergy. This can be used to distinguish experimentally between
various models for the $\rho$ in matter.
