Published in:
01-12-2017 | Editorial
What future for the myocardial sympathetic innervation imaging?
Author:
Federico Caobelli
Published in:
European Journal of Nuclear Medicine and Molecular Imaging
|
Issue 13/2017
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Excerpt
The myocardial sympathetic innervation plays a pivotal role in the progression of heart failure and in the occurrence of life-threatening arrhythmias. An impaired function of presynaptic sympathetic nerve terminals is considered to reflect impaired reuptake and thus impaired removal of the neurotransmitter from the synaptic cleft [
1], resulting in overexposure of the myocardium to catecholamines and in a pre/post-synaptic signaling imbalance [
2]. Consistent with this pathophysiologic model, prospective, large-scale clinical trials confirmed an excellent prognostic value of adrenergic imaging in patients with heart failure, both with single photon emission tomography (SPECT) and with positron emission tomography (PET) [
3,
4]. …