To determine the factors associated with 20 minute Tc-99m pertechnetate thyroid uptake, we examined all patients in whom thyrotoxicosis was diagnosed at Chiba-Hokusoh Hospital, Nippon Medical School from 2001 April through 2003 March. Patients with thyrotoxicosis diagnosed during this period were 57 with Graves' disease (76%), 11 with transient hyperthyroxinemia (TH)(14.7%), and 7 with subacute...

objective(s): in this study, we aimed to evaluate the efficacy of thyroid volume measurement using 99mtc pertechnetate single-photon emission computed tomography (spect) images, acquired by the standardized uptake value (suv)-shape scheme designed by our expert team.methods: a total of 18 consecutive patients with graves’ disease (gd) were subjected to both ultrasonographic and 99mtc pertechnet...

A radioiodine whole body scan relies on the fact that differentiated thyroid cancer is more efficient at trapping circulating radioiodine than any other tissues.(Hyer, Newbold et al. 2010) Therefore, when I-131 is administered it accumulates in the thyroid cancer tissues and a radioiodine whole body scan plays an important role in the management of patients with differentiated thyroid cancer. U...

Objective: The aim of this study was to determine the diagnostic accuracy of incidental FDG-PET/CT uptake in the thyroid in patients with cancers of nonthyroidal origin, in order to reduce the number of thyroidectomies performed on nodules that subsequently proved to be benign. Material and methods: From January to September 2011 a total of 2510 patients were evaluated at our institution with w...

The effects of goitrogens on the thyroid gland have been much studied and calcium is considered as a goitrogen in some cases. Since the level of calcium is high in drinking water of some cities of Khozestan province, the effects of high calcium intake on the function of thyroid gland is investigated in this study. For this purpose the concentration of thyroid hormones is measured in rats. The s...

The absence of TSH-stimulated radioiodide uptake in differentiated thyroid cancer is associated with a high recurrence rate and reduced survival. We studied regulation of the sodium/iodide symporter gene in human papillary thyroid cancer cell lines (BHP) and primary human thyroid cells. BHP cells expressed very low levels of sodium/iodide symporter mRNA and did not concentrate iodide, but iodid...

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 SU...

BACKGROUND/OBJECTIVE Limited animal and human studies have shown function, albeit inadequate, of implanted thyroid tissue in muscles. This work aimed to ascertain results in a larger number of patients, finding practical method for implantation, studying the effect of changing weight of implant and effect of passage of time on its function. METHODS Forty patients had total thyroidectomy for s...

OBJECTIVE The purpose of the current study is to examine the incidence and clinical significance of unexpected focal uptake of 18F-fluorodeoxyglucose (18F-FDG) on positron emission tomography/computed tomography (PET/CT) in the thyroid gland of oncology patients, the maximum standardized uptake value (SUVmax) of benign and malignant thyroid incidentalomas in these patients, and review the liter...