Morphometry and Quality Control For a May-Grunwald Giemsa Stained Preparation. A 40 Centers Cooperative Study

Abstract

A multicentric study including 40 medical centers has been done on May-Gmnwald Giemsa (MGG) stain, to obtain precise information concerning the size, shape and color of cellular elements. A number of factors are taken into consideration including the zone of microscopic observation, the quality of staining, condition of grabbing images and the size of the sample. Morphometric and colorimetric measurements have been applied as objective tools for demonstrating the predominance of each Red/Green/Blue component, and more particularly their reciprocal ratio. The results obtained for each center may constitute a guideline for adjusting their procedure, in order to reach a consensus regarding similar staining by all centers.

Key Words:

• Staining
• quality control
• morphometry
• colorimetry