TY - GEN
T1 - Cardiac motion estimation from intracardiac electrical mapping data
T2 - 5th International Conference on Functional Imaging and Modeling of the Heart, FIMH 2009
AU - Camara, Oscar
AU - Oeltze, Steffen
AU - De Craene, Mathieu
AU - Sebastian, Rafael
AU - Silva, Etel
AU - Tamborero, David
AU - Mont, Lluis
AU - Sitges, Marta
AU - Bijnens, Bart H.
AU - Frangi, Alejandro F.
PY - 2009
Y1 - 2009
N2 - In this paper, we present a methodology to estimate cardiac motion directly from the high resolution temporal data provided by an intra-cavity electrical mapping system (CARTO). These data consist in intracardiac electrical measurements, obtained invasively through the contact of a catheter with the endocardial wall at different locations, with simultaneous recording of the position of the measuring catheter over time. The 3D displacement fields between the different timepoints obtained from the position measurements are projected onto the vector pointing from the CARTO points to the centroid of the CARTO cloud, giving a very intuitive vectorial coarse representation of the diastolic and systolic motion. Furthermore, scalar projection 1D curves can be used to identify specific motion patterns. We have applied the proposed methodology to the CARTO acquisitions of nine candidates to cardiac resynchronization therapy, identifying the specific sequence of motion and deformation (septal flash) found in LBBB, which was confirmed by visual inspection of the corresponding MR and 3D-US images.
AB - In this paper, we present a methodology to estimate cardiac motion directly from the high resolution temporal data provided by an intra-cavity electrical mapping system (CARTO). These data consist in intracardiac electrical measurements, obtained invasively through the contact of a catheter with the endocardial wall at different locations, with simultaneous recording of the position of the measuring catheter over time. The 3D displacement fields between the different timepoints obtained from the position measurements are projected onto the vector pointing from the CARTO points to the centroid of the CARTO cloud, giving a very intuitive vectorial coarse representation of the diastolic and systolic motion. Furthermore, scalar projection 1D curves can be used to identify specific motion patterns. We have applied the proposed methodology to the CARTO acquisitions of nine candidates to cardiac resynchronization therapy, identifying the specific sequence of motion and deformation (septal flash) found in LBBB, which was confirmed by visual inspection of the corresponding MR and 3D-US images.
KW - Cardiac motion
KW - Cardiac resynchronization therapy
KW - CARTO
KW - Electrical mapping
KW - Left bundle branch block
KW - Septal flash
UR - http://www.scopus.com/inward/record.url?scp=68849126492&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-01932-6_3
DO - 10.1007/978-3-642-01932-6_3
M3 - Conference contribution
AN - SCOPUS:68849126492
SN - 3642019315
SN - 9783642019319
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 21
EP - 29
BT - Functional Imaging and Modeling of the Heart
Y2 - 3 June 2009 through 5 June 2009
ER -