[Determination of arterial wall thickness variations of vessels in the microcirculation by the ATPase-Quantimet...

The use of the Quantimet for measurements of structural wall reactions of blood vessels (b.v.), visualized selectively by a modification of the ATPase reaction, requires that changes in wall thickness are not mimicked by differences in deposition of the reaction product, by changes of the b.v. lumen, and/or by b.v. elongations, especially meanderings occurring independently of thickenings of vessel walls and caused solely by increase of the intravascular pressure or by vasoconstriction. The article has substantiated the conclusion that these requirements are fulfilled.