Abstract: An Electro-Magnetic Imaging (EMAI) System is presented. EMAI systems can include induction elements (e.g., an induction coil) configured to induce a target tissue to generate internally sourced ultrasounds. The induction elements can be shielded by one or more shielding elements to shape, or otherwise alter, an imaging field while attenuating radiated fields in a far zone. EMAI systems can further include a shield tuner to adjust shield parameters to achieved desired imaging or radiated field properties. A shielding element can be placed approximately one induction coil radius away from the coil to achieve suitably strong imaging field magnitudes while also achieving suitably weak radiated field magnitudes in a far zone. In some embodiments, acoustic sensors lack substantial shielding from the fields generated by the induction elements.