On the dark rim artifact in dynamic contrast-enhanced MRI myocardial perfusion studies

A dark band or rim along parts of the subendocardial border of the left ventricle (LV) and the myocardium has been noticed in some dynamic contrast‐enhanced MR perfusion studies. The artifact is thought to be due to susceptibility effects from the gadolinium bolus, motion, or resolution, or a combin...

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Veröffentlicht in:	Magnetic resonance in medicine 2005-11, Vol.54 (5), p.1295-1299
Hauptverfasser:	Di Bella, E.V.R., Parker, D.L., Sinusas, A.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Animals Contrast Media dark rim Dogs dynamic contrast MRI filtering Gadolinium DTPA Image Enhancement - methods Image Interpretation, Computer-Assisted - methods In Vitro Techniques Magnetic Resonance Imaging - methods myocardial perfusion imaging Myocardium - cytology Reproducibility of Results Sensitivity and Specificity
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Zusammenfassung:	A dark band or rim along parts of the subendocardial border of the left ventricle (LV) and the myocardium has been noticed in some dynamic contrast‐enhanced MR perfusion studies. The artifact is thought to be due to susceptibility effects from the gadolinium bolus, motion, or resolution, or a combination of these. Here motionless ex vivo hearts in which the cavity was filled with gadolinium are used to show that dark rim artifacts can be consistent with resolution effects alone. Magn Reson Med, 2005. © 2005 Wiley‐Liss, Inc.
ISSN:	0740-3194 1522-2594
DOI:	10.1002/mrm.20666