Field flood uniformity correction: benefits or pitfalls?
Strict quality control of scintillation camera images is increasingly recognized as important in a nuclear medicine laboratory. The field flood uniformity of the camera should be tested daily. A variety of commercially available data systems facilitate the above task. Concomitantly, scintigrams are increasingly being corrected for uniformity, namely, unbalanced photo-multiplier tubes, uniformity correction can occasionally, depending on the scatter fraction, produce clinically significant artifacts. This effect is due to the application of a linear correction factor to a nonlinear phenomenon.
D003201:Computers; D011786:Quality Control; D011877:Radionuclide Imaging / Q000295:instrumentation*