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Computational analysis of kidney scintigrams

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: D. Vrincianu, E. Puscasu, D. Creanga, C. Stefanescu

Editorial: AIP Publishing LLS, AIP Conference Proceedings > TIM 2012 PHYSICS CONFERENCE , 1564, 223 , p.223-238, 2013.


he scintigraphic investigation of normal and pathological kidneys was carried out using specialized gamma-camera device from nuclear medicine hospital department. Technetium 90m isotope with gamma radiation emission, coupled with vector molecules for kidney tissues was introduced into the subject body, its dynamics being recorded as data source for kidney clearance capacity. Two representative data series were investigated, corresponding to healthy and pathological organs respectively. The semi-quantitative tests applied for the comparison of the two distinct medical situations were: the shape of probability distribution histogram, the power spectrum, the auto-correlation function and the Lyapunov exponent. While power spectrum led to similar results in both cases, significant differences were revealed by means of distribution probability, Lyapunov exponent and correlation time, recommending these numerical tests as possible complementary tools in clinical diagnosis.

Cuvinte cheie: kidney investigation, nuclear medicine, computational methods