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Quality Control

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Performing QC

Poor Image Report

Acceptance Testing

Gamma Camera Acceptance Testing

Acceptance Testing is widely recommended or required by various governmental and professional organizations including NRC, JCAHO, ACNP, ACR, ICANL and SNM. These tests are to be performed before a camera is first used for clinical imaging. Acceptance Testing is used to assess whether a camera is safe and performing adequately for clinical use, to determine if the camera is performing in accordance with the manufacturer’s specifications and to verify the camera was installed correctly. Acceptance Testing does not eliminate the need for Routine Quality Control and conversely, Routine Quality Control does not eliminate the need for Acceptance Testing. Rather, Acceptance Testing assesses an additional set of camera parameters as well as provides a baseline or benchmark performance level that is continuously monitored by the Routine Quality Control Procedures. A camera may pass tests designed to evaluate planar performance but not pass the more stringent requirements for Tomographic usage.

The following is a summary of the recommendations and requirements as presented by the various organizations and professionals in the field of nuclear medicine and physics.

  • Mechanical
    • Camera Motion Assessment
    • Patient Pallet Operation
    • Camera Safety Emergency Stop and Interlocks
    • Readout Accuracy
    • Detector Shielding
  • Planar Tests
    • Intrinsic
      • Intrinsic Uniformity with and without Correction
      • Intrinsic Spatial Linearity
      • Intrinsic Spatial Resolution
      • Intrinsic Energy Resolution
      • Multiple Energy Window Spatial Registration
      • Multiple Radionuclide Intrinsic Uniformity
      • Dead Time and Maximum Count Rate Capability (Intrinsic Sensitivity)
      • Detector to Detector Sensitivity
    • Extrinsic
      • Extrinsic Sensitivity for each Collimator Set
      • Extrinsic Uniformity for each Collimator Set
      • Extrinsic Spatial Resolution, Collimator Angulation and Damage for each Collimator Set
  • SPECT Tests
    • Rotational Uniformity
    • Tomographic Uniformity
    • Tomographic Contrast
    • Tomographic Resolution
    • Multi Detector Registration
    • Center of Rotation
    • Pallet Registration
  • Whole Body Imaging
    • Whole Body Registration
    • Whole Body Spatial Resolution

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