We introduce indices which characterize morphological structure of the
system of aggregated cells in a thin blood layer. The main quantitati
ve characteristics of the system is the multifractal spectrum f(alpha)
. Analysis of the f(alpha) profile for varying aggregation moments all
ows to describe quantitatively the dymamics of formation and growth of
cell aggregates as well as to determine the structural morphological
changes during this aggregation. Other quantitative values describing
the aggregation kinetics are the scaling exponents characterizing the
power dependence of the cluster quantity n(s)(t) on the number of part
icles in the cluster s and on the time moment t.