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Journal Article

MRT-basierte Morphometrie. Eine Bestandsaufnahme

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Tittgemeyer,  Marc
Department Cognitive Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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von Cramon,  D. Yves
Department Cognitive Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Citation

Tittgemeyer, M., & von Cramon, D. Y. (2004). MRT-basierte Morphometrie. Eine Bestandsaufnahme. Nervenarzt, 75(12), 1172-1178. doi:10.1007/s00115-004-1781-9.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-C8E0-2
Abstract
Morphometry offers new approaches for in vivo characterization of many neurolog- ic and psychiatric pathologies. A survey of recent publications only hints at the at- tractiveness of magnetic resonance-based morphometry: published findings are het- erogeneous, partly contradictory, and not always plausible in terms of known neu- ropathologic correlates. Hence, the sensitiv- ity of the applied methods should be ques- tioned. Three parameters affect the vari- ance in morphometric findings: (1) knowl- edge about normal morphologic variabil- ity, (2) confounding physiologic parame- ters, and (3) methodologic misuse. Sound knowledge about the morphologic variabil- ity of the normal brain is vital for the assess- ment of volumetric findings. Large morpho- logic variability may also interfere with the precision of morphometric methods. The multitude of possible confounding physio- logic parameters raises the necessity of pre- cise subject control. Magnetic resonance scanning artefacts require rigid protocols, and application of the rather complex and sensitive methods demands profound in- sight into the techniques.