MRT der myokardialen spätanreicherung während freier atmung unter einsatz einer prospektiven navigatortechnologie mit echtzeit-schichtnachführung

Translated title of the contribution: Navigator-gated and real-time motion corrected free-breathing MR imaging of myocardial late enhancement

E. Spuentrup, A. Buecker, E. Karassimos, R. W. Günther, M. Stuber

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: A new magnetic resonance imaging approach for detection of myocardial late enhancement during free-breathing was developed. Methods and Results: For 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, MRimaging 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 12min after i.v. administration of 0.2 mmol/kg body weight gadolinium-DTPA. Conclusion: With 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.

Translated title of the contributionNavigator-gated and real-time motion corrected free-breathing MR imaging of myocardial late enhancement
Original languageGerman
Pages (from-to)562-567
Number of pages6
JournalRoFo Fortschritte auf dem Gebiet der Rontgenstrahlen und der Bildgebenden Verfahren
Volume174
Issue number5
DOIs
StatePublished - Jun 25 2002

Keywords

  • Contrast enhancement
  • Magnetic Resonance Imaging
  • Myocardial Viability
  • Navigator technology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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