• E Spuentrup, A Buecker, E Karassimos, R W Günther, and M Stuber.
• Department of Diagnostic Radiology, Aachen University of Technology, Germany. spuenti@rad.rwth-aachen.de
• Rofo. 2002 May 1; 174 (5): 562-7.

PurposeA new magnetic resonance imaging approach for detection of myocardial late enhancement during free-breathing was developed.Methods And ResultsFor suppression of respiratory motion artifacts, a prospective navigator technology including real-time motion correction and a local navigator restore was implemented. Subject specific inversion times were defined from images with incrementally increased inversion times acquired during a single dynamic scout navigator-gated and real-time motion corrected free-breathing scan. Subsequently, MR-imaging of myocardial late enhancement was performed with navigator-gated and real-time motion corrected adjacent short axis and long axis (two, three and four chamber) views. This alternative approach was investigated in 7 patients with history of myocardial infarction 12 min after i. v. administration of 0.2 mmol/kg body weight gadolinium-DTPA.ConclusionWith the presented navigator-gated and real-time motion corrected sequence for MR-imaging of myocardial late enhancement data can be completely acquired during free-breathing. Time constraints of a breath-hold technique are abolished and optimized patient specific inversion time is ensured.

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