The gamma camera has been used for thyroid, brain and kidney scanning and its immediate and potential uses after further modification are indicated. The camera has also been used with a collimating grid instead of a pinhole and preliminary results with it are reported.It is concluded that the gamma camera can be used successfully for the majority of present-day radioactive-isotope scanning techniques, with the limitations that the display is small and to some extent distorted; these disadvantages are minimal in thyroid scanning. The machine will enable dynamic events to be studied and short-lived isotopes to be used, neither of which are practicable with mechanical scanning machines.
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