title: The importance of the incidental thyroid gland uptake during Tc-99m MIBI myocardial perfusion scintigraphy.
abstract: OBJECTIVE
  The purpose of study was to investigate whether incidental thyroid gland uptake had an important during Tc-99m sestamibi (MIBI) myocardial perfusion scintigraphy (SPECT).
  
  
  METHODS
  In the presented study, 968 consecutive patients were evaluated for the presence or absence of thyroid gland uptake in the raw data of the Tc-99m MIBI SPECT. All of the patients had thyroid gland uptake of the Tc-99m MIBI underwent laboratory evaluation of thyroid function, ultrasonographic imaging, and hystopathological examination.
  
  
  RESULTS
  The thyroid gland uptake was detected in 14 of 968 (1.4%) consecutive patients during the evaluation of raw images of Tc-99m MIBI SPECT studies. Among these 14 patients, 4 had subacute thyroiditis, 7 multinodular goiter, 3 Graves disease by ultrasonographic imaging and hystopathological examination. TSH levels of all of these patients were < 0.01 U/ml.
  
  
  CONCLUSIONS
  Tc-99m MIBI uptake by thyroid gland has been explained with associated clinical thyrotoxicosis. Although the primary goal of myocardial perfusion imaging is the evaluation of myocardial perfusion, the interpretation of myocardial perfusion imaging should not be limited to the heart. Because, it is possible to observe extracardiac radioactivity accumulation, which may then lead to the diagnosis of a noncardiac disease during this detailed examination.
authors.affiliation: Department of Nuclear Medicine, Bozok University, Yozgat, Turkey. seyhankaracavus@hotmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Karacavus
authors.forename: H
authors.initials: H
authors.lastname: Ede
authors.forename: S
authors.initials: S
authors.lastname: Sarikaya
authors.forename: N
authors.initials: N
authors.lastname: Delibas
authors.forename: E
authors.initials: E
authors.lastname: Kaya
authors.forename: A R
authors.initials: AR
authors.lastname: Erbay
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D055414:Myocardial Perfusion Imaging / Q000379:methods*; D011859:Radiography; D012680:Sensitivity and Specificity; D017256:Technetium Tc 99m Sestamibi / Q000378:metabolism*; D013961:Thyroid Gland / Q000000981:diagnostic imaging* / Q000473:pathology*; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods*
chemical_list: D017256:Technetium Tc 99m Sestamibi