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Normal Variants and Artifacts

  • Yong-Whee Bahk
  • Myung-Hee Sohn
Chapter

Abstract

Recalling the expression “all is not gold that glitters”, increased uptake is not necessarily pathological. Indeed, normal bone scintigraphs are often altered or modified by physiological or anatomical factors, imitating pathology (Howarth et al. 1996). For example, the tuberosity of the humerus and proximal tibia, to which the deltoid and quadriceps muscles are attached, respectively, may accumulate tracer intensely due to constant physical stress. Tracer uptake is normally increased in growing bones, either locally in the physes (Figs. 4.13 and 4.15) or generally in the entire skeleton, and also in anatomical variants. Modest tracer uptake may be observed in secondary ossification centers that have recently been fused (Fig. 4.31A). A number of artifacts can be produced by various technical factors related to kit preparation or intravenous injection of radiopharmaceuticals, attenuation of gamma rays, or the function of the gamma camera and computer systems (Hung et al. 1996; Forstrom et al. 1996; O’Connor 1996).

Keywords

Tracer Uptake Navicular Bone Increase Tracer Uptake Secondary Ossification Center Bladder Diverticulum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Depart. of Nuclear Med. and RadiologySun Ae General HospitalSeoulKorea, Republic of
  2. 2.Department of Nuclear MedicineJeonbuk National University Medical School HospitalJeonjuKorea

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