Navigator-gated and real-time motion corrected free-breathing MR Imaging of myocardial late enhancement.
Fiche du document
2002
- doi: 10.1055/s-2002-28271
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/doi/10.1055/s-2002-28271
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/pmid/11997854
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_E349D01878E92
info:eu-repo/semantics/openAccess , Copying allowed only for non-profit organizations , https://serval.unil.ch/disclaimer
Sujets proches
KineticsCiter ce document
E. Spuentrup et al., « Navigator-gated and real-time motion corrected free-breathing MR Imaging of myocardial late enhancement. », Serveur académique Lausannois, ID : 10.1055/s-2002-28271
Métriques
Partage / Export
Résumé
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, 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. 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.