The main objective of this study was to evaluate
the normal range of thyroid uptake and determine the
thyroid volume in patients who has normal thyroid
function test (T.F.T) & homogenous distribution of the
radiotracer in Sudanese especially in Radiation & Isotope
Center Khartoum (RICK) & Elnelain Medical Diagnostic
Center. This study includes 400 patients (85% female,
15%male) in different age, sex, center of origin and type of
food and drink intake, for nine months From May 2017 to
Feb 2020. The most frequency of ages distribute as (22-
26)15%,( 26-30)15% the thyroid uptake value in the
gamma camera (mediso) & (simens), the result of this
study showed that, the normal range of thyroid uptake is
in the range between (0.4% —4.5%) & the thyroid volume
is in the range of (20cm2 to 40cm2) there was a direct
relationship between thyroid uptake and the thyroid
volume that when the volume increase the uptake increase
that shown in the following equation: y = 0.59x + 2.7
where x refers to thyroid volume and y refers to uptake in
percent.
