Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Motion corrected free-breathing delayed enhancement imaging of myocardial infarction using non-rigid registration
Year:2007
Research Areas
  • Electronics engineering
Information
Abstract
Purpose: To develop and test an automatic free-breathing, delayed enhancement imaging method with improved image signal-to-noise ratio (SNR). Materials and Methods: The proposed approach uses freebreathing, inversion-recovery single-shot fast imaging with steady precession (FISP) delayed-enhancement with respiratory motion compensation based on nonrigid image registration. Motion-corrected averaging is used to enhance SNR. Results: Fully automatic, nonrigid registration was compared to previously validated rigid body registration that required user interaction. The performance was measured using the variance of edge positions in intensity profiles through the myocardial infarction (MI) enhanced region and through the right ventricular (RV) wall. Measured variation of the MI edge was 1.16  0.71 mm (N  6 patients; mean  SD) for rigid body and 1.08  0.76 mm for nonrigid registration (no significant difference). On the other hand, significant improvement (P  0.005) was found in the measurements at the RV edge where the SD was 2.06  0.56 mm for rigid body and 0.59  0.22 mm for nonrigid registration. Conclusion: The proposed approach achieves delayed enhancement images with high resolution and SNR without requiring a breathhold. Motion correction of free-breathing delayed-enhancement imaging using nonrigid image registration may be implemented in a fully automatic fashion and performs uniformly well across the full field of view (FOV).
International
Si
JCR
Si
Title
J MAGN RESON IMAGING
ISBN
1053-1807
Impact factor JCR
2,209
Impact info
Volume
26
Journal number
0
From page
184
To page
190
Month
SEPTIEMBRE
Ranking
Participants
  • autor: A.E. Arai (National Institutes of Health)
  • Participante: E. McVeigh (National Institutes of Health)
  • Autor: Maria Jesus Ledesma Carbayo (UPM)
  • autor: M.J. Kellman (National Institutes of Health)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnología de imágenes biomédicas
  • Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)