2 検出器型装置を用いたXe-133 dynamic SPECTによる局所肺機能評価の検討

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  • Lung Function Assessment Using Xe-133 Dynamic SPECT in Dual-camera System

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The purpose of this study was to estimate lung regional function using Xe-133 dynamic SPECT. SPECT equipment with a dual camera was used. Fourteen rotation acquisitions were obtained beginning immediately after Xe-133 gas inhalation. The time activity curve of each pixel was obtained, and T_<1/2> of the washout phase was calculated and mapped. Residual radioactivity was evaluated. Adequate images could be obtained at 30 seconds per rotation even with the dual-camera system. Mapping of T_<1/2> allowed temporal changes on one image. Three-dimensional evaluation could be made on a SPECT system using our method.

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