blurring in SPECT. It should also be possible to design a Page 1 and, thus, the spatial
resolution characteristics had to be selected on the basis of the available collimators. By …

A scintigraphic method for the estimation of the thyroid mass in patients with Graves' disease
is described. The method was first standardized using thyroid phantoms with eight different …

Knowledge of in vivo thyroid volume has both diagnostic and therapeutic importance and
could lead to a more precise quantification of absolute activity contained in the thyroid gland …

Individualised dosage models are frequently applied for radioiodine therapy in patients with
Graves' hyperthyroidism, especially in Europe. In these dosage schemes the thyroid volume …

The determination of the weight of the human thyroid gland has become extremely important
since the introduction of I131 in the treatment of hyperthyroidism. In most clinics estimates of …

The diagnosis of thyroid disease is usually determined from planar gamma-camera images
of the distribution of 99Tcm pertechnetate using a pinhole or parallel-hole collimator. The …

After receiving between 100 and 300 µCi of the positron-emitting radioisotope124I (half-life,
4.2 days), 64 patients with a variety of thyroid disorders were imaged with a high resolution …

Single photon emission computed tomography (SPECT) entails imaging at multiple
positions along an arc and computed-assisted reconstruction of transaxial, coronal, and …

Using ultrasound it is possible to determine the thyroid volume with a maximal error of 12%.
The method is based on the electronic planimetry of a sequence of transverse ultrasound …

To improve the accuracy and speed of determination of thyroid structure and function, we
have developed a system that combines the use of 99mTc-pertechnetate, the scintillation …