Jordanova E, Jankovic R, Naumovic R, Celic D, Ljubicic B, Simic-Ogrizovic S, Basta-Jovanovic G. The fractal and textural analysis of glomeruli in obese and non-obese patients.
J Pathol Inform 2022;
13:100108. [PMID:
36277955 PMCID:
PMC9583580 DOI:
10.1016/j.jpi.2022.100108]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/29/2022] [Accepted: 05/29/2022] [Indexed: 11/25/2022] Open
Abstract
Background
Fractal dimension is an indirect indicator of signal complexity. The aim was to evaluate the fractal and textural analysis parameters of glomeruli in obese and non-obese patients with glomerular diseases and association of these parameters with clinical features.
Methods
The study included 125 patients mean age 46 ± 15.2 years: obese (BMI ≥ 27 kg/m2—63 patients) and non-obese (BMI < 27 kg/m2—62 patients). Serum concentration of creatinine, protein, albumin, cholesterol, trygliceride, and daily proteinuria were measured. Formula Chronic Kidney Disease Epidemiology Colaboration (CKD-EPI) equation was calculated. Fractal (fractal dimension, lacunarity) and textural (angular second moment (ASM), textural correlation (COR), inverse difference moment (IDM), textural contrast (CON), variance) analysis parameters were compared between two groups.
Results
Obese patients had higher mean value of variance (t = 1.867), ASM (t = 1.532) and CON (t = 0.394) but without significant difference (P > 0.05) compared to non-obese. Mean value of COR (t = 0.108) and IDM (t = 0.185) were almost the same in two patient groups. Obese patients had higher value of lacunarity (t = 0.499) in comparison with non-obese, the mean value of fractal dimension (t = 0.225) was almost the same in two groups. Significantly positive association between variance and creatinine concentration (r = 0.499, P < 0.01), significantly negative association between variance and CKD-EPI (r = -0.448, P < 0.01), variance and sex (r = -0.339, P < 0.05) were found.
Conclusions
Variance showed significant correlation with serum creatinine concentration, CKD-EPI and sex. CON and IDM were significantly related to sex. Fractal and textural analysis parameters of glomeruli could become a supplement to histopathologic analysis of kidney tissue.
Variance showed significant correlation with eGFR calculated by CKD- EPI formula.
Significant correlation between variance and serum creatinine was found.
Textural contrast and inverse difference moment were significantly related to sex.
Fractal analysis of glomeruli could become supplement to histopathologic analysis.
Textural analyses of kidney tissue should become useful to histopathologic analysis.
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