SPECT IMAGING AND FACTORS INVOLVED IN ITS IMAGE QUALITY

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  • FUJITA TORU
    Department of Clinical Nuclear Medicine, Kyoto University Hospital

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  • SPECT 法とその画像修飾因子

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Abstract

A transverse tomograph "Mark I" developed by Kuhl in 1963 was the start point of various kinds of tomography. Many attempts for tomographic display have been made in the field of nuclear medicine as well. In the present report, the author would like to describe the circumstances of the development from longitudinal to transverse tomography of the SPECT method and their respective features. This SPECT imaging is influenced by various factors, and this can be responsible for image differences among institution. Image-modifying factors for the SPECT method are verified in terms of 1) the system performance for measurement, 2) imaging techniques and 3) the system performance for CRT indication and record, respectively. Beside, the author proposes optimal density and gradation for CRT image toward the standardization of digital images.

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