liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Determination of intrathyroidal iodine by X-ray fluorescence analysis in 60- to 65-year olds living in an iodine-sufficient area
Show others and affiliations
2006 (English)In: Journal of Internal Medicine, ISSN 0954-6820, Vol. 260, no 1, 69-75 p.Article in journal (Refereed) Published
Abstract [en]

Objectives. X-ray fluorescence (XRF) is a non-invasive method for determining the iodine content of the thyroid gland in vivo. In spite of the obvious clinical value of such a method in situations of iodine deficiency or iodine overload, the method has not so far been widely used. The objective was to investigate the applicability of the XRF method in a larger number of subjects. Design and subjects. The study comprised 37 individuals, aged 60-65 years, who had spent their entire life with iodine supplementation through iodinated table salt. Individuals with (previous) thyroid disease were excluded. The individual thyroid function had previously been evaluated by measurements of thyroid-related hormones, thyroid volume and 131-Iodine (131I) uptake which indicated a sufficient iodine intake of the population in the area. Iodine in the right thyroid lobe in each subject was examined using XRF. Results. The mean thyroid iodine concentration was 0.4 mg mL-1, corresponding to a mean total iodine content of 5.2 mg (range 0.9-20.2). There was a pronounced difference between individuals. No correlation was found between iodine concentration and 131I uptake or thyroid volume. Neither was iodine content and 131I uptake correlated. Conclusions. In a population living under iodine-sufficient conditions, a large variation of iodine stored in the thyroid is compatible with euthyroidism. Determination of the iodine pool by XRF investigation is feasible in a clinical setting and the method offers a unique possibility to study the intrathyroidal iodine pool in subjects with thyroid disease. The low radiation dose enables the use of the method in pregnant women and also in young individuals. © 2006 Blackwell Publishing Ltd.

Place, publisher, year, edition, pages
2006. Vol. 260, no 1, 69-75 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-36828DOI: 10.1111/j.1365-2796.2006.01660.xLocal ID: 32704OAI: diva2:257677
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-11

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Olsson, Anna
By organisation
Faculty of Health SciencesRadiation Physics
In the same journal
Journal of Internal Medicine
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 41 hits
ReferencesLink to record
Permanent link

Direct link