1. A device for selectively compressing target tissue for magnetic resonance imaging of the target tissue, said compression device comprising: a non-moving structure; a moveable structure including a contact surface that is configured to contact the target tissue; a moving mechanism operably coupled to the moveable member, the mechanism including a plurality of fluid actuatable devices, each being operably coupled to the moveable structure; wherein the fluid actuatable devices are each configured and arranged such that the device selectively moves the moveable structure in a first direction to compress the tissue between the non-moving structure and the moveable structure, responsive to admission of pressurized fluid in one fluid direction and moves the moveable structure in a second direction so as to allow the tissue to relax responsive to admission of pressurized fluid in another fluid direction; and wherein the moveable member and the member moving mechanism are made of MRI-compatible materials.