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Query: "author" (Valentin Fidler) .

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1.
Upgrading of gamma cameras for developing countries
Valentin Fidler, Milan Prepadnik, Yanfen Xie, 2001, original scientific article

Abstract: Background. The project of upgrading the analog gamma cameras with PC based systems from International Atomic Energy Agency (IAEA) and the Ministry of Science and Technology of RS is presented from the initial basic demands to the final developments. Several national research groups (from China, India, Cuba and Slovenia) were involved in the IAEA development project for the acquisition card with software and the standard set of clinical protocols. Conclusions. The most functionally stable acquisition system tested on severalinternational workshops and in university clinics was the Slovenian onewith a complete set of nuclear medicine clinical protocols, documenting, networking and archiving solutions for simple MS Network or server oriented network systems (NT server, etc). More than 300 gamma cameras in 52 countries all over the world were digitized and put in routine clinical work.
Published in DiRROS: 25.01.2024; Views: 173; Downloads: 33
.pdf Full text (275,44 KB)

2.
Current trends in diagnostic nuclear medicine instrumentation
Valentin Fidler, 2000, review article

Abstract: Introduction. The basic principles of nuclear medicine imaging instruments aredescribed with the emphasis on multi crystal scintillation and semiconductor gamma cameras, positron emission scanners without detector inter-ring attenuation septa, new detector materials and semiconductor CZT surgical probes for localization of metastases. For the estimation of minimal useful detector diameter the theoretical equation was derived for the 20% lossof absorbed gamma rays at the edge of the detector. Conclusion. Nuclear medicine instrumentation has been passing throgh vigorous development in the last years and will be most likely also in the near future. New detection materials with much better physical characteristics than the standard NaI as regards the stopping power, energy resolutions, fragility, decay time, light output, and density will most likely replace the NaI. It is expected that new imaging devices with several thousands of tiny crystals or semiconductor arrayof small position sensitive areas will improve the sensitivity and specificity of clinical studies. At the same time the small surgical probes made from these materials are also becoming very popular in surgery tracing the regional metastases.
Published in DiRROS: 25.01.2024; Views: 177; Downloads: 33
.pdf Full text (330,04 KB)

3.
Nuclear medicine, IBM PC PIP-GAMMA-PF computer system
Valentin Fidler, Milan Prepadnik, Jurij Fettich, Sergej Hojker, 1997, review article

Published in DiRROS: 18.01.2024; Views: 174; Downloads: 41
.pdf Full text (318,50 KB)
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