jnin/IN VITRO NUCLEAR MEDICINE Page 1 In clinical and research studies involving long-term
assessment of radiothyroxine disappearance rates, it is customary to block thyroidal uptake of …

METHODS AND RESULTS The patient is placed supine and a scintillation detector probe is
positioned directly over the thyroid gland. The probe consists of a 20 degree divergent lead …

In allof these46 patients, uniform suppressibilitywas demonstratedby means of pre-and post-
suppressionscintigramsand confirmedby point-count ratiosin 17 patients. Although some …

A comparative study of the influence of T3 and TSH on the thyroid 131I 24-hour uptake and
131I trapping was made. There were 87 patients in the T3 suppression group and 116 in the …

MATERIALS AND METHODS The clinical material consisted of patients on the medical
services of the various hospitals of the Indiana University Medical Center and normal volun …

The radioactive iodine uptake (RAIU) merits a position of prominence in thyroid function
testing. With reasonable care function testing. With reasonable care technical errors virtually …

The Estimation of Extra-Thyroid Neck Tissue Radioactivity During Thyroid Radioiodine Uptake
Measurements.' Page 1 JOURNAL OF NUCLEAR MEDICINE 8 :678-685, 1967 The Estimation …

A radloimmunoassayfor quantitativelymeasuringthe serum concentrationof free thyroxineis
described. This methoddoes not requireequilibriumdialysis, and is rapid and reproducible …

A visual index of thyroid uptake (VITU) is introduced as a qualitative measure of thyroid
trapping. This index is determined from the 20-minute 99mm Tc-pertechnetate scan by …

Turnover of thyroidal radioiodine was determined in 24 hypothyroid subjects by counting
over the gland on 7 consecutive days after administration of a tracer. Upon completion of this …