Cardiac function

TB Tobias Borchert
AH Annika Hess
ML Mario Lukačević
TR Tobias L. Ross
FB Frank M. Bengel
JT James T. Thackeray
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To determine infarct size and assess contractile function, electrocardiographically gated perfusion SPECT scans were acquired as described previously [15]. Briefly, under isoflurane anesthesia, mice were injected with 99mTc-sesatamibi (116 ± 13 MBq) as a bolus via a catheter inserted into a lateral tail vein. After 30 min of distribution, mice were positioned prone on the animal bed and ECG-gated listmode images were acquired using the Explore speCZT (TriFoil Imaging) equipped with a full ring of cadmium–zinc–telluride (CZT) detectors and a mouse 7-pinhole collimator. Images were acquired over ~ 25 min as described [12, 15], and reconstructed as a summed image and into 8 cardiac gates for functional analysis using an iterative algorithm. Additional details are provided in the online supplement.

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