Title :
A New High Sensitivity Thyroid X-Ray Fluorescence Scanning System
Author :
Yasillo, N.J. ; Ortega, C.J. ; Charleston, D.B. ; Beck, R.N.
Author_Institution :
Department of Radiology of the University of Chicago and the Franklin McLean Memorial Research Institute Chicago, Illinois 60637
Abstract :
An array of five Si(Li) detectors which partially surrounds a collimated 10 Ci 241Am source, combined with a microprocessor-controlled scanning bed, has been developed for imaging of stable iodine within the thyroid. The sensitivity of the system is sufficient to generate high-quality scan images in a scanning time of approximately 15 minutes, with a spatial resolution of 5.9 mm (FWHM). We have evaluated several phantom studies and used the results to develop a computer code which determines the total thyroid iodine content and thyroid area with acceptable accuracy.
Keywords :
Collimators; Detectors; Fluorescence; High-resolution imaging; Image generation; Imaging phantoms; Optical imaging; Sensor arrays; Spatial resolution; X-ray imaging;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1981.4331164
