Clemens Diwoky1, Andreas Reinisch2,
Florian Knoll1, Bernhard Neumayer1, Dirk Strunk2,
Rudolf Stollberger1
1Institute of Medical Engineering, Graz
University of Technology, Graz, Austria; 2Stem Cell Research Unit,
Dept. of Hematology, Univ. Clinic of Internal Medicine, Medical University of
Graz, Graz, Austria
Within
this study we outline some crucial points concerning the use of 2D UTE
sequences for the cell detection based on differential images. We show that
especially in regions of high iron density many artefacts caused by the pulse
sequence yields to misinterpretations or wrong quantitative results. On the basis
of an ectopic labelled cell population we discuss the artefacts caused by a
common 2D UTE acquisition strategy with half-pulse excitation.