Abstract
Preclinical evaluations of radiotracers designed for imaging cardiac sympathetic innervation have played a key role in the development of this branch of nuclear cardiology. In this chapter, many of the experimental approaches used to characterize the neuronal uptake and retention mechanisms of sympathetic nerve radiotracers are reviewed, from in vitro assays to in vivo imaging studies in animal models. Data from these studies have been critically important in the development of the most optimal radiotracers for cardiac innervation imaging studies in human subjects. They have also provided invaluable insights into the underlying neuronal retention mechanisms of each radiotracer, which are essential to understanding observed changes in the myocardial retention and kinetics of the radiotracer in heart diseases.
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Abbreviations
- [11C]-D2-PHEN:
-
[11C]-(–)-α,α-dideutero-phenylephrine
- [11C]-EPI:
-
[11C]-(–)-epinephrine
- [11C]-GMO:
-
N-[11C]-guanyl-(–)-meta-octopamine
- [11C]-mHED:
-
[11C]-meta-(–)-hydroxyephedrine
- [11C]-MHPG:
-
[11C]-meta-hydroxyphenethylguanidine
- [11C]-PHEN:
-
[11C]-(–)-phenylephrine
- [11C]-PHPG:
-
[11C]-para-hydroxyphenethylguanidine
- [123I]-MIBG:
-
[123I]-metaiodobenzylguanidine
- [131I]-RIBA:
-
[131I]-o-iodobenzyltrimethylammonium iodide
- [18F]-4F-MHPG:
-
4-[18F]-fluoro-meta-hydroxyphenethylguanidine
- [3H]-NE:
-
[3H]-labeled norepinephrine
- 6-OHDA:
-
6-hydroxydopamine
- C6-hNET:
-
Cloned human NET (cells)
- COMT:
-
Catechol-O-methyltransferase
- DMI:
-
Desipramine
- EMT:
-
Extraneuronal monoamine transporter
- HMG-CoA:
-
3-hydroxy-3-methylglutaryl-coenzyme A
- HPLC:
-
High-performance liquid chromatography
- LAD:
-
Left anterior descending (artery)
- MAO:
-
Monoamine oxidase
- mHED:
-
(–)-meta-hydroxyephedrine
- MIBG:
-
Metaiodobenzylguanidine
- NET:
-
Norepinephrine transporter
- OCT3:
-
Organic cation transporter 3
- PAPS:
-
Adenosine-3′-phosphate-5′-phosphosulfate
- PET:
-
Positron emission tomography
- PHEN:
-
(–)-phenylephrine
- RBC(s):
-
Red blood cell(s)
- RI:
-
Retention index
- ROI:
-
Region-of-interest
- SPECT:
-
Single photon emission computed tomography
- STZ:
-
Streptozotocin
- UDPGA:
-
Uridine 5′-diphosphoglucuronic acid
- VMAT2:
-
Vesicular monoamine transporter 2
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Raffel, D.M. (2015). Preclinical Evaluations of Cardiac Sympathetic Innervation Radiotracers. In: Slart, R., Tio, R., Elsinga, P., Schwaiger, M. (eds) Autonomic Innervation of the Heart. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-45074-1_10
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DOI: https://doi.org/10.1007/978-3-662-45074-1_10
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