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Objective Animal models for myocardial injuries represent important cornerstones in cardiovascular research to monitor the pathological processes and therapeutic approaches. We investigated the association of 18F-FDG derived left ventricular metabolic volume (LVMV), defect area and cardiac function in mice after permanent or transient ligation of the left anterior descending artery (LAD). Methods Serial non-invasive ECG-gated 2-deoxy-2-[18F]fluoro- d -glucose positron emission tomography (18F-FDG PET) after permanent or transient LAD ligation enabled a longitudinal  in vivo  correlation of 18F-FDG derived left ventricular metabolic volume to functional parameters and myocardial defect. Results The LVMV shows a more prominent drop after permanent than transient LAD ligation and recovers after 30 days. The loss of LVMV correlates with the defect area assessed by QPS software. Cardiac function parameters (e.g., EDV, ESV, SV) by the QGS software positively correlate with LVMV after permanent and transient LAD ligation. Conclusions This study provides novel insight into 18F-FDG derived LVMV after permanent and transient LAD ligation by longitudinal in 18F-FDG PET imaging and underlines the associations of the FDG derived parameter and cardiac function.

Comparison of transient and permanent LAD ligation in mice using 18F-FDG PET imaging