コンピュータによる2核種胸部シンチグラムの表示方法

概要

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The method of superimposition display with the chest scintigram and the perfusion scintigram has been described using the small computer system with 16K of core memory. The chest scintigram is obtained using ^<197>HgCl_2 or ^<67>Ga-citrate, and patient remaining in the same position is given ^<99m>Tc-MAA for perfusion imaging. These images are transferred from the core memory to the magnetic tape recorder. In order to improve the radioisotopic image quality, authors have used some correction techniques by the computer as follows. 1) Correction for a uniformity of the scintillation camera. 2) Two-dimensional filtering. 3) Background subtraction of the chest scintigram. The perfusion scintigram is superimposed to the chest scintigram. The superimposed image is displayed using the 4010 CRT display and the TV display. This processing was useful not only to improve anatomic information of the chest scintigram but also to make radioisotopic diagnosis of various lung diseases more reliable.
公益社団法人日本放射線技術学会の論文
1980-07-01