J. C. Bisconte

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Iron overload has been measured in 100 hepatic biopsies by three different methods: (i) biochemical assay of the liver iron concentration (LIC), (ii) histological grading (HISTO) and (iii) automated image analysis with a Leitz Texture Analysis System by estimating two parameters, (a) the total iron area (TIA) and (b) the first grey level step (FGLS) at(More)
Vascular growth in the median suprasylvian gyrus of the cat has been analysed quantitatively with respect to mitoses, vascular density, vascular diameters, vascular coefficient and preferential vascular orientation. After correction for shrinkage and growth, four maturation periods were identified: (i) Immature period (first postnatal week), when the tissue(More)
A software package of general interest, and adapted to the analysis of histological sections has been written. The different programs of this package have been classified into four groups: macroanalysis, selection of fields, analysis, and data processing. The macroanalysis allows the acquisition of topographical information that will be used during the(More)
B and T lymphocytes of known origin were used to test a pretopologic (mathematical) classification model that uses chromatin texture as a parameter. One data base was obtained by digitizing the cells with a standard TV camera coupled with a microscope, with the images transmitted to an image-analysis system (ASTI) coupled with a multi-20 computer. A second(More)
Neurogenesis was studied in the duck olfactory bulb by injection of tritiated thymidine into the eggs at 53 h and at the 3rd, 5th, 8th, 10th, 12th, 14th and 18th days of incubation. The large neurons appear before the small ones: the mitral cells arise between embryonic day 3 (E3) and E5, the tufted cells between E5 and E8 and the granular cells between E12(More)