Background: A shrink image was observed during 99mTc whole body bone scan of patients on one of the designated Head of GE Infinia Hawkeye 4 dual head SPECT/CT system. The artifact started appearing during the acquisition of whole body, static, dynamic, and SPECT images. Similarly, during DTPA scan, the problem occurred in some of the frames.
Case Presentation: The artifact appeared because of the problem in one detector. The acquired images appeared nonuniform because of this artifact. The cause of the nonuniformity of images was analyzed which lead to the faulty ADAM board of the detector of head 2.
Conclusion: A defective ADAM board can lead to suboptimal image on display. Appropriate image quality in such a case can be obtained after the rectification of root cause.
Key words: Artifact, shrink image, ADAM board, SPECT/CT.
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