How often should high count uniformity correction flood maps be acquired?

High count uniformity correction flood maps should be acquired on a weekly basis to ensure optimal performance and accuracy of the imaging system. The purpose of these maps is to assess and correct any non-uniformities in the response of the gamma camera detectors due to factors such as variations in detector sensitivity, scatter, or attenuation.

Weekly acquisition of these flood maps allows for timely identification of any changes or drifts in system performance that could affect image quality and quantitation. Regular monitoring helps to maintain the calibration of the imaging system, ensuring that any corrections can be applied before performing clinical scans.

Acquiring flood maps too infrequently could allow undetected discrepancies to impact patient imaging, while daily acquisitions may be unnecessary and inefficient, overburdening the workflow without providing significant additional benefit. Therefore, weekly maintenance strikes an optimal balance between system performance monitoring and operational efficiency.