TY - JOUR
T1 - Multimodality infarct identification for optimal image-guided intramyocardial cell injections
AU - van Slochteren, F. J.
AU - van Es, R.
AU - Koudstaal, S.
AU - van der Spoel, T. I. G.
AU - Sluijter, J. P. G.
AU - Verbree, J.
AU - Pruim, R. H. R.
AU - Pluim, J. P. W.
AU - Leiner, T.
AU - Doevendans, P. A.
AU - Chamuleau, S. A. J.
PY - 2014
Y1 - 2014
N2 - Background Intramyocardial cell injections in the context of cardiac regenerative therapy can currently be performed using electromechanical mapping (EMM) provided by theNOGA®XP catheter injection system. The gold standard technique to determine infarct size and location, however, is late gadolinium enhanced magnetic resonance imaging (LGEMRI). In this article we describe a practical and accurate technique to co-register LGE-MRI andNOGA®XP datasets during the injection procedures to ultimately perform imageguided injections to the border zone of the infarct determined by LGE-MRI. Materials and methods LGE-MRI and EMM were obtained in three pigs with chronic myocardial infarction. MRI and EMM datasets were registered using the in-house developed 3D CartBox image registration toolbox consisting of three steps: 1) landmark registration, 2) surface registration, and 3) manual optimization. The apex and the coronary ostia were used as landmarks. Results Image registration was successful in all datasets, and resulted in a mean registration error of 3.22±1.86 mm between the MRI surface mesh and EMM points. Visual assessment revealed that the locations and the transmural extent of the infarctions measured by LGE-MRI only partly overlap with the infarct areas identified by the EMM parameters. Conclusions The 3D CartBox image registration toolbox enables registration of EMM on pre-procedurally acquired MRI during the catheter injection procedure. This allows the operator to perform real-time image-guided cell injections into the border zone of the infarct as assessed by LGE-MRI. The 3D CartBox thereby enables, for the first time, standardisation of the injection location for cardiac regenerative therapy.
AB - Background Intramyocardial cell injections in the context of cardiac regenerative therapy can currently be performed using electromechanical mapping (EMM) provided by theNOGA®XP catheter injection system. The gold standard technique to determine infarct size and location, however, is late gadolinium enhanced magnetic resonance imaging (LGEMRI). In this article we describe a practical and accurate technique to co-register LGE-MRI andNOGA®XP datasets during the injection procedures to ultimately perform imageguided injections to the border zone of the infarct determined by LGE-MRI. Materials and methods LGE-MRI and EMM were obtained in three pigs with chronic myocardial infarction. MRI and EMM datasets were registered using the in-house developed 3D CartBox image registration toolbox consisting of three steps: 1) landmark registration, 2) surface registration, and 3) manual optimization. The apex and the coronary ostia were used as landmarks. Results Image registration was successful in all datasets, and resulted in a mean registration error of 3.22±1.86 mm between the MRI surface mesh and EMM points. Visual assessment revealed that the locations and the transmural extent of the infarctions measured by LGE-MRI only partly overlap with the infarct areas identified by the EMM parameters. Conclusions The 3D CartBox image registration toolbox enables registration of EMM on pre-procedurally acquired MRI during the catheter injection procedure. This allows the operator to perform real-time image-guided cell injections into the border zone of the infarct as assessed by LGE-MRI. The 3D CartBox thereby enables, for the first time, standardisation of the injection location for cardiac regenerative therapy.
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84922020589&origin=inward
UR - https://www.ncbi.nlm.nih.gov/pubmed/25331760
U2 - https://doi.org/10.1007/s12471-014-0604-2
DO - https://doi.org/10.1007/s12471-014-0604-2
M3 - Article
C2 - 25331760
SN - 1568-5888
VL - 22
SP - 493
EP - 500
JO - Netherlands heart journal
JF - Netherlands heart journal
IS - 11
ER -