Measuring the volume density of the glomerular mesangium

J. M. Basgen, S. S. Rich, S. M. Mauer, M. W. Steffes

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Volume density (V(v)) is a morphometric parameter used to detect pathological changes within renal tissue. To establish the most efficient technique, V(v) of the mesangium in renal biopsies was studied. First, a digitizing tablet was used to trace mesangial and total glomerular areas, subsequently used to calculate V(v) of the mesangium. Secondly, a point counting technique was tested using either a 16-point or an 81-point grid; the number of grid points falling on the mesangium and glomerulus was used to calculate mesangial V(v). The digitizing tablet, the 81-point grid and the 16-point grid all gave equivalent V(v) for the 15 biopsies. The 81-point grid and the 16-point grid were, respectively, 1.9 and 3.2-fold faster than the digitizing tablet. Since all techniques gave comparable results, the 16-point grid was the most efficient.

Original languageEnglish (US)
Pages (from-to)182-186
Number of pages5
Issue number3
StatePublished - 1988

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