Integrating functional and anatomical information to facilitate cardiac resynchronization therapy.
Multiple imaging modalities are required in patients receiving cardiac resynchronization therapy. We have developed a strategy to integrate echocardiographic and angiographic information to facilitate left ventricle (LV) lead position. Full three-dimensional LV-volumes (3DLVV) and dyssynchrony maps were acquired before and after resynchronization. At the time of device implantation, 3D-rotational coronary venous angiography was performed. 3D-models of the veins were then integrated with the pre- and post-3DLVV. In the case displayed, prior to implantation, the lateral wall was delayed compared to the septum. The LV lead was positioned into the vein over the most delayed region, resulting in improved LV synchrony.
Tournoux
Francois B
FB
Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA. ftournoux@gmail.com
Manzke
Robert
R
Chan
Raymond C
RC
Solis
Jorge
J
Chen-Tournoux
Annabel A
AA
Gérard
Olivier
O
Nandigam
Veena
V
Allain
Pascal
P
Reddy
Vivek
V
Ruskin
Jeremy N
JN
Weyman
Arthur E
AE
Picard
Michael H
MH
Singh
Jagmeet P
JP
D000368:Aged; D018780:Body Surface Potential Mapping; D002037:Bundle-Branch Block / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy; D017023:Coronary Angiography; D004452:Echocardiography; D005260:Female; D006333:Heart Failure / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy; D006801:Humans; D021621:Imaging, Three-Dimensional; D010138:Pacemaker, Artificial