Four slide frames were prepared per
sample and scanned with a Dimage Scan Multi Pro (Konica
Minolta Photo Imaging Europe GmbH, Unterfoehring,
Germany) at a resolution of 4,800 dpi. The images were
analysed with the image analysis software Fibreshape 4.35
(IST AG, Vilters, Switzerland). The evaluation was done
with a calibrated measuring mask (ALFM 48 Z K 5 D00).