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Limitations of the keyhole technique for quantitative dynamic contrast‐enhanced breast MRI
Author(s) -
Bishop Jonathan E.,
Santyr Giles E.,
Kelcz Frederick,
Plewes Donald B.
Publication year - 1997
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880070418
Subject(s) - keyhole , computer science , contrast (vision) , artifact (error) , image resolution , dynamic imaging , dynamic contrast enhanced mri , data acquisition , artificial intelligence , radiology , image processing , materials science , magnetic resonance imaging , medicine , image (mathematics) , digital image processing , welding , metallurgy , operating system
The effect of keyhole data acquisition on quantitative analysis of dynamic MRI was examined. Experiments were performed retrospectively on raw data obtained from clinical dynamic contrast‐enhanced breast imaging procedures. The effects of keyhole phase‐encoding acquisition and type of reconstruction algorithm on the accuracy of derived quantitative parameters was assessed. Results indicate that the minimum keyhole size used should be restricted by the approximate minimum size of the expected lesions. Furthermore, reconstruction algorithms that offer improved image resolution do not circumvent this restriction.