甲状腺シンチグラムの標準化についての試み

第1報実大像に関する基礎研究

抄録

One of the important problems to obtain standard technique for the thyroid scintigram was drawing of the actual figure of human thyroid gland by means of scintiscanning.
For this purpose, some experiments were carried out using model phantoms of various shaped ¹³¹I sources which resemble human thyroid gland in different size and form.
Consequently, a convenient method was deviced.
In this method, the width of energy-band of used radioiodine was corrected according to different ¹³¹I thyroid uptake rate.
A table was made from the relation of energy-band to uptake rate.
The scintigram obtained by application of this table could be more distinctly demonstrated as well as the actual figure of the material, which was confirmed by the phantom experiments and also with the patients.
This table and some scintigrams were demonstrated.