[Clinical benefit of compensation of motion artefacts in contrast media enhanced MRI mammography].
This article discusses the diagnostic benefit of methods for the compensation of motion artefacts in dynamic MRT-Mammography with a contrast agent. Our algorithms for motion compensation perform a locally rigid registration of cubic sub-volumes and a locally affine deformation of tetrahedral sub-volumes from a Delaunay-Triangulation. Within an extensive clinical study, these fast, automatic, and robust algorithms have been applied to 64 MRT-Mammography datasets from the radiological practice of Dr. Friedburg. The comparison of corrected datasets with original data and the statistical evaluation of results show a significantly improved quality of difference images, particularly at the presence of large motion artefacts.
Boesnach
I
I
Institut für Algorithmen und Kognitive Systeme (IAKS), Universität Karlsruhe, Deutschland. boesnach@ira.uka.de
Friedburg
H
H
Beth
T
T
D000328:Adult; D000368:Aged; D000465:Algorithms; D016477:Artifacts; D001943:Breast Neoplasms / Q000175:diagnosis; D003287:Contrast Media; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008327:Mammography / Q000379:methods*; D008875:Middle Aged; D012680:Sensitivity and Specificity
D003287:Contrast Media