A phantom and associated method for calibrating registration in a multi-modal medical diagnostic imaging system are presented. The assembly comprises a communication module adapted to receive andor send information signals, a main window area, and an extended window area. Inside circumferential sipes extend straight along a tire radial direction and outside circumferential sipes extend along the tire radial direction in zigzag patterns. The temporary guiderails stabilize the top edge of the primary layer of welded-wire fabric, and rib lath is attached to the surface of the primary layer of welded-wire fabric to form a structural panel.