PET/CT artifacts

Clin Imaging. 2011 Jan-Feb;35(1):49-63. doi: 10.1016/j.clinimag.2010.03.001.


There are several artifacts encountered in positron emission tomography/computed tomographic (PET/CT) imaging, including attenuation correction (AC) artifacts associated with using CT for AC. Several artifacts can mimic a 2-deoxy-2-[18F] fluoro-d-glucose (FDG) avid malignant lesions and therefore recognition of these artifacts is clinically relevant. Our goal was to identify and characterize these artifacts and also discuss some protocol variables that may affect image quality in PET/CT.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Artifacts*
  • Fluorodeoxyglucose F18*
  • Image Enhancement / methods*
  • Positron-Emission Tomography / methods*
  • Prostheses and Implants*
  • Radiopharmaceuticals
  • Subtraction Technique*
  • Tomography, X-Ray Computed / methods*


  • Radiopharmaceuticals
  • Fluorodeoxyglucose F18