Radiosialometry: I.A Method for Evaluation of Salivary Gland Disorders

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Abstract
The temporal course of the total 99TcmO4 accumulation in the parotid gland after fast intravenous injection of the radionuclide, is studied by examination with quantitative radiosialometry. The method adopted is based on the use of two collimated, symmetrically located and opposite placed NaI-detectors. The normal ranges of five evaluation parameters are obtained from a control material of 100 parotid glands in 50 individuals without disorders of the parotid glands. The reproducibility of these five evaluation parameters is estimated and the sensitivity and the detectability of the parameters as well as different sources of variation are discussed. Classification boundaries between normal and abnormal values are arbitrarily chosen from the normal ranges.