System and method for SPECT radiation detector module calibration based on subject imaging examination information

A system, comprising:

• a memory that includes a calibration module with instructions for a SPECT calibration procedure;
• and
• a processor configured to execute instructions and perform the SPECT calibration procedure, including:
• accumulating counts for each pixel in a set of pixels of one or more gamma cameras of a single photon emission tomography (SPECT) imaging system from a plurality of imaging examinations of patients and each energy peak of each isotope used in the plurality of imaging examinations of patients to produce an energy spectrum for each of the pixels at each of the energy peaks of each of the isotopes;
• determining, for each of the pixels and for each of the energy peaks, an energy calibration factor that converts the energy detected by each pixel to an energy of each of the energy peaks;
• populating an energy calibration map for each energy peak with corresponding energy calibration factors;
• determining, for each of the pixels and for each of the energy peaks, a uniformity calibration factor that converts a number of counts detected by each of the pixels to a predetermined number of counts for each of the energy peaks;
• and
• populating a uniformity calibration map for each energy peak with corresponding uniformity calibration factors.

A computer readable medium encoded with computer executable instructions, which, when executed by a processor, cause the processor to:

• accumulate counts for each pixel in a set of pixels of one or more gamma cameras of a single photon emission tomography (SPECT) imaging system from a plurality of imaging examinations of patients and each energy peak of each isotope used in the plurality of imaging examinations of patients to produce an energy spectrum for each of the pixels at each of the energy peaks of each of the isotopes;
• determine, for each of the pixels and for each of the energy peaks, an energy calibration factor that converts the energy detected by each pixel to an energy of each of the energy peaks;
• populate an energy calibration map for each energy peak with corresponding energy calibration factors;
• determine, for each of the pixels and for each of the energy peaks, a uniformity calibration factor that converts a number of counts detected by each of the pixels to a predetermined number of counts for each of the energy peaks;
• and
• populate a uniformity calibration map for each energy peak with corresponding uniformity calibration factors.