WBC scan

From IDWiki
  • Radiolabelled white blood cell scintography
  • Extremely useful in distinguishing post-operative changes (where WBCs rarely accumulate) from post-surgical infection1
  • Several options exist
    • Indium-111-labelled: good for acute infections, including intraabdominal infections and osteomyelitis, though maybe less sensitive for chronic infections and spinal osteomyelitis
      • Good for osteomyelitis when combined with bone scan
      • This is probably the workhorse radiotracer
    • Technetium-99m-labelled: higher spatial resolution and lower radiation dose
      • Because it's faster with lower radiation, it is preferred in pediatrics
      • Better for bowel imaging because it doesn't routinely accumulate in the bowels in the way that indium does
      • Not used with bone scans
    • SPECT: used to improved anatomic localization

Further Reading

  • Clinical indications, image acquisition and data interpretation for white blood cells and anti-granulocyte monoclonal antibody scintigraphy: an EANM procedural guideline. Eur J Nucl Med Mol Imaging. 2018;45(10):1816–1831. doi: 10.1007/s00259-018-4052-x

References

  1. ^  A. Signore, F. Jamar, O. Israel, J. Buscombe, J. Martin-Comin, E. Lazzeri. Clinical indications, image acquisition and data interpretation for white blood cells and anti-granulocyte monoclonal antibody scintigraphy: an EANM procedural guideline. European Journal of Nuclear Medicine and Molecular Imaging. 2018;45(10):1816-1831. doi:10.1007/s00259-018-4052-x.