The present disclosure describes system and methods for detecting and amplifying weak magnetic fields generated by anatomical structures. The disclosure describes an implantable magnetic reporter system. The magnetic reporter system includes a magnetic reporter. The magnetic reporter includes a platform coupled to a support structure by a plurality of torsional flexures. A magnet is disposed on the platform, and the magnet and platform rotate when exposed to a magnetic field. The rotation of the magnet generates a stronger magnet field that is detectable external to the patient.
