Yes, thermal imaging remains a safe adjunctive diagnostic tool even when you have a pacemaker. This is because thermal imaging uses a high tech camera system to capture the infrared rays in the form of the heat irradiated from the body, projecting this in a visual form of heat map. Thermal Imaging is a safe, passive, non-invasive procedure where the infrared camera does not interfere with or subject the body to any radiation, magnetic, radio or soundwaves like the other anatomical screening tools such as mammography, MRI and ultrasound.