Nuclear Medicine/Endocrine/Thyroid

Scans for Benign DiseaseEdit

Multinodular GoiterEdit

IndicationsEdit

ProcedureEdit

Graves DiseaseEdit

IndicationsEdit

ProcedureEdit

Scans for Thyroid CancerEdit

IndicationsEdit

ProcedureEdit

Thyroid AblationEdit

IndicationsEdit

  • Thyroid cancer - Either localized or metastatic
  • Benign disease refractory to conservative treatment and/or causing symptoms or complications

ProcedureEdit

  • Calculation of dose
    • The dose should be calculated with two different variables: The weight of the gland(in grams), and how much it's 24 hr uptake is (For example, 24% would be 0.24). You can then use the following formula:
\text{Required dose} (microCi)=\frac{Size~in~grams \cdot (100~to~180microCi)}{24~hour~%RAIU}
    • The weight of the gland is a very subjective measurement. One can attempt to approximate the gland weight with the following guidelines:
      • A regular non-palpable thyroid gland weighs approximately 15-20 grams.
      • A thyroid that you cannot see but is palpable weighs approximately 30-40 grams (needs verification)
      • A gland that is easily seen and palpated can be anywhere from 40-200 grams (needs verification)


    • ^ ISBN 0-323-02946-9 -- "Nuclear Medicine: The Requisites, Third Edition (Requisites in Radiology)." (Harvey A. Ziessman, Janis P. O'Malley MD, James H. Thrall MD. 2006. Mosby, Inc.)

Acronyms used:

Last modified on 19 February 2010, at 22:43