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Fig. 2 | Trials

Fig. 2

From: Electrically guided versus imaging-guided implant of the left ventricular lead in cardiac resynchronization therapy: a study protocol for a double-blinded randomized controlled clinical trial (ElectroCRT)

Fig. 2

Control group: pre-implant imaging obtained to guide implantation of the left ventricular (LV) lead. a Echocardiographic LV short-axis view of the basal (left) and mid-LV imaging plane (right) each divided into six anatomical segments. Numbers indicate time to peak radial strain in milliseconds (ms). b Baseline cardiac computed tomography (CT) images in three-dimensional 3D reconstruction illustrating cardiac venous anatomy. Posterior (left) and lateral (right) view of LV. c Baseline cardiac CT image in the mid-LV multiplanar reformatted short-axis view illustrating cardiac venous anatomy. d Rubidium positron emission tomography (Rb-PET) myocardial perfusion (MP) imaging, LV 17-segment bulls-eye plot. Numbers indicate percentage of tracer-uptake; < 50% is considered as transmural scar tissue. AIV, anterior interventricular vein; Ant, anterior; Ant-Sept, antero-septal; CS, coronary sinus; Inf, inferior; LAD, left anterior descending artery; Lat, lateral; LMA, left marginal artery (circumflex artery branch); LMV, left marginal vein; MCV, middle cardiac vein; PDA, posterior descending artery (right coronary artery branch); PLA, posterolateral artery; Post, posterior; PV, posterior vein; RCA, right coronary artery; RV, right ventricle; Sept, septal

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Trials

ISSN: 1745-6215