Radio scanning studies of ear and sinuses

Abstract

ABSTRACT.Radiophotoscanners are relatively new diagnostic tools. They provide visual images as well as quantitative information about the behavior in the human body of special substances called radionuclides. This paper is a preliminary report about the use of a radioactive gas, 133 Xenon, to study the ventilation of the middle ear and sinuses. This technique has so far rendered intriguing, and at the same time, fascinating results. At this point in time these results cannot be considered definitive or conclusive. It is conceivable, however, that if standardization and control of variables is achieved, this technique may play an important role in the physiological and pathological assessment of these cavities.

Evaluation of Eustachian tube function with ventilation scintigraphy by using133Xe gas

“…We have presented an approach, simple to operate, for non-invasive investigation of the middle ear ventilation using 133 Xe. Kirchner (1974) injected a bolus of 133 Xe gas, using a syringe, into the mouth of the subject, who was then instructed to pinch his nose and execute several Valsalva manoeuvres. As a result, investigators demonstrated that gas could enter into the ear and sinuses as well.…”

“…Ventilation scintigraphy with 133 Xe is mainly used in diagnosis of pulmonary function. The first scintigram of pneumatic spaces of the ear and the paranasal sinuses with 133 Xe was obtained by Kirchner in 1974. In the present study, we aimed to evaluate the success rate of 133 Xenon gas ventilation scintigraphy by non-invasive administration on the testing of Eustachian tube function.…”