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Misalignment of Multiple Photopeak Analyzer Outputs: Effects on imaging. Concise Communication

Cedars-Sinai Medical Center, Los Angeles, California

Correspondence: For reprints contact: Dennis Chapman, MS, Cedars-Sinai Medical Ct., 8700 Beverly Blvd., Los Angeles, CA 90048.

ABSTRACT

With the increased use of gallium-67 citrate and cameras with multiple pulse-height analyzers, the spatially linear response of the camera with respect to simultaneous use of multiple pulse-height analyzers is essential. Nonlinear response will result in spatial distortion and loss of resolution and image contrast. It is not acceptable under these circumstances to pay for increased count density with decreased resolution.