Thyroid Disorders and the Distribution of Orally Administered Radioiodine

Summary128 control, thyrotoxic, hypothyroid and goitrous euthyroid children were administered 1–2 μCi Na 131I orally and studied in a shadow-shield whole-body counter. 48-hr whole-body counts permitted the differentiation of the first 3 groups (p < 0.005). Ratio of extrathyroid:excreted 131I was 3 times greater in thyrotoxics than in goitrous euthyroids, but the thyroid:extrathyroid ratio was 3 times greater in the latter group. The whole-body profile scan obtained at 48 hr on an attached strip chart recorder, revealed activity not only in the thyroid but even lower down in the vicinity of the knees and feet.

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A comparison between the use of a shadow shield whole-body counter and an uncollimated gamma camera in the assessment of the seven-day retention of SeHCAT

British Journal of Radiology ◽

10.1259/0007-1285-57-679-581 ◽

1984 ◽

Vol 57 (679) ◽

pp. 581-584 ◽

Cited By ~ 18

Author(s):

T. K. Hames ◽

B. R. Condon ◽

J. S. Fleming ◽

G. Phillips ◽

G. Holdstock ◽

...

Keyword(s):

Gamma Camera ◽

Whole Body ◽

Body Counter ◽

Whole Body Counter ◽

Shadow Shield

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Monitoring of the biodistribution and biokinetics of dysprosium-165 ferric hydroxide with a shadow-shield whole-body counter

European Journal of Nuclear Medicine ◽

10.1007/bf00881811 ◽

1997 ◽

Vol 24 (4) ◽

pp. 398-402

Author(s):

C. Pirich ◽

U. Pr�fert ◽

E. Havlik ◽

E. Schwarmeis ◽

J Flores ◽

...

Keyword(s):

Ferric Hydroxide ◽

Whole Body ◽

Body Counter ◽

Whole Body Counter ◽

Shadow Shield

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MCNP model of the EEAE ACCUSCAN Whole Body Counter

HNPS Proceedings ◽

10.12681/hnps.1899 ◽

2019 ◽

Vol 23 ◽

pp. 171

Author(s):

N. Sarlikiotis ◽

C. Potiriadis ◽

M. Nikolaki ◽

I. E. Stamatelatos

Keyword(s):

Atomic Energy Commission ◽

Radiation Detection ◽

Atomic Energy ◽

Whole Body ◽

Body Counter ◽

Detection Systems ◽

Whole Body Counter ◽

Shadow Shield ◽

Ge Detector

Monte Carlo simulations and verification measurements for the efficiency calibration of the ACCUSCAN shadow-shield type Whole Body Counter (WBC) of the Greek Atomic Energy Commission (EEAE) are presented. A model of the counter and RMC-II anthropomorphic phantom was developed using the MCNP code. Full energy peak efficiencies for different phantom positions were calculated for 60Co and 137Cs sources. The deviations between computational and experimental efficiencies were found to be less than 12 % for 60Co and 4 % for 137Cs for the Ge detector and less than 25 % for 60Co and 4 % for 137Cs for the NaI detector. This work contributes to the accurate quantification of internal contamination in individuals accidentally exposed in Greece by the Greek Atomic Energy Commission Laboratories and moreover demonstrates the effectiveness of using computational tools for understanding the calibration of radiation detection systems used for in vivo monitoring.

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