The role of non-invasive imaging in patient selection.
Cardiac resynchronization therapy (CRT) is an established therapy for patients with advanced heart failure, depressed left ventricular (LV) function and wide QRS complex. A substantial amount of patients do not respond to CRT. Recent studies suggest that assessment of mechanical dyssynchrony may allow identification of potential CRT responders. In addition, presence of scar tissue and venous anatomy may play a role in the selection of candidates. This article summarizes the role of non-invasive cardiac imaging modalities addressing these issues in the selection of CRT candidates.
Van de Veire
Nico R
NR
Department of Cardiology, Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands. n.r.l.van_de_veire@lumc.nl
Delgado
Victoria
V
Schuijf
Joanne D
JD
van der Wall
Ernst E
EE
Schalij
Martin J
MJ
Bax
Jeroen J
JJ
D004452:Echocardiography; D006333:Heart Failure / Q000628:therapy*; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008279:Magnetic Resonance Imaging; D010138:Pacemaker, Artificial; D018579:Patient Selection; D011237:Predictive Value of Tests; D013318:Stroke Volume / Q000502:physiology; D015899:Tomography, Emission-Computed, Single-Photon; D036542:Tomography, Spiral Computed; D016896:Treatment Outcome; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging*