SIMPLIFIED METHOD FOR DETERMINING THE MODULATION TRANSFER FUNCTION

The modulation transfer function (MTF) has long been accepted as an index of scintillation camera system resolution, but the technique necessary for the derivation of the MTF has dis couraged its widespread acceptance because of its tedious and time-consuming nature. We have shown that the generation of LSFs for input into computer programs for MTF generation can be accomplished very easily and in short periods of time by using a simplified method. Establish ment of the validity of this simplified procedure should contribute to more widespread utiliza tion of the MTF in routine quality control pro grams as a check for crystal deterioration, elec tronic circuitry degradation, and/or collimator damage.