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In Vivo Thyroid Autoradiography^1,2,3,

Los Angeles, California

ABSTRACT

It has been shown that diagnostic x-ray grids are a practical means of collimation for soft gamma rays. In autoradiography of a thyroid phantom, excellent resolution was achieved with a long exposure time, but even with reasonable exposure items, good resolution was possible. The feasibility of the method for in vivo autoradiography of the thyroid has been demonstrated. Improvements in speed, either with faster film, faster intensifying screens, or both, would reduce the exposure time sufficiently to make this type of autoradiography a practical, inexpensive method for visualization of radioactive organs.

FOOTNOTES

¹ From the Department of Radiology, University of Southern California School of Medicine, Los Angeles County Hospital and Loma Linda University School of Medicine. Address: 1200 North State Street.

² Supported in part by a research grant from the Loss Angeles County Hospital Attending Staff Association.

³ Presented at the Twelfth Annual Meeting of the Society of Nuclear Medicine, Bal Harbour, Florida, June 17-19, 1965.