教育，研究用核医学データ処理解析ソフトウエアパッケージの開発について

摘要

The objective of this study was to develop a personal computer-based nuclear medicine data processor for education and research in the field of nuclear medicine. We call this software package "Prominence Processor" (PP). Windows of Microsoft Corporation was used as the operating system of this PP, which have 1024x768 image resolution and various 63 applications classified into 6 groups. The accuracy was examined for a lot of applications of the PP. For example, in the FBP reconstruction application, there was visually no difference in the image quality as a result of comparing two SPECT images obtained from the PP and GMS-5500A (Toshiba). Moreover, Normalized MSE between both images showed 0.0003. Therefore the high processing accuracy of the FBP reconstruction application was proven as well as other applications. The PP can be used in an arbitrary place if the software package is installed in note PC. Therefore the PP is used to lecture and to practice on an educational site and used for the purpose of the research of the radiological technologist on a clinical site etc. widely now.%核医学検査は種々の放射性医薬品の開発および検査装置の性能向上に伴って，他の検査法では得ることの困難な生態の代謝および機能情報を提供し，特に断層画像を得るsingle photon emission computed tomography（SPECT）およびpositron emission computed tomography（PET）はその普及によって，核医学の臨床に欠かすことのできない検査法となっている．SPECT，PETは，体内に放射性医薬品を投与し，放出される光子を体外で検出し断層画像を得るもので，常に光子の減弱，散乱および低分解能という問題を伴う．