The effect of apex-finding errors on factor images obtained from factor analysis and oblique transformation (nuclear medicine)

Abstract

The use of an oblique transformation to obtain physiological factors from a factor analysis of dynamic studies was recently suggested. The technique involves using an apex-seeking routine to enable these factors and their contribution images to be formed. The effects of errors in apex-finding on these factor images were investigated. Apart from scaling, the factor image obtained from a given apex evidently is independent of the position of that apex (and hence is independent of its own factor).