Onsite Regeneration of Crystal Data in a 3/8" Foresight Detector Using a Digital Workflow.

Generally after the accreditation of the gamma camera, its unfailing optimal operation is guaranteed with established departmental preventive maintenance schedules. However, it is not easy to always religiously follow the same maintenance routines. Therefore, instead of preventive maintenance schedule, a reactive maintenance schedule was adopted in our department for a short span of time. In our center, the humidity level in the gamma camera room was recorded to be 90%, which was much higher than the recommended value of 50%-60%. This was due to the inundated water in the gamma camera room due to an accidental breakage of fire-extinguishing water pipeline, adjacent to the room. Postaccident, higher values of nonuniformity (both intrinsic and extrinsic uniformity) were observed. The reactive maintenance was undertaken by medical physicist and field engineer to record and confirm the crystal hydration in the detector and to restore the system for the clinical studies. The digital workflow program successfully rectified the problem of crystal hydration. It is highly recommended to perform timely reactive action which may prevent the permanent damage to the systems.