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. 2022 Jan 13;24(3):247–260. doi: 10.1007/s11886-022-01641-4

Fig. 1.

Fig. 1

Overview of cardiac functions and pathophysiological pathways in cardiotoxicity for which emerging PET tracers are proposed to have diagnostic or prognostic function. Leading examples of tracers for each of pathway are discussed in the following sections and their molecular or biochemical targets are indicated in the panels. Abbreviations: CXCR4 = C-X-C chemokine receptor type 4; TSPO = 18-kDa translocator protein; mPTP = mitochondrial permeability transition pore; ROS = reactive oxygen species; LAT = L-amino acid transporter; NET = norepinephrine transporter; β-AR = β-adrenergic receptor; FAP = fibroblast activation protein; GLUT = glucose transporter; HK = hexokinase; MCT = monocarboxylate transporter; LDH = lactate dehydrogenase; FA = fatty acid; FATP = fatty acid transport protein; FACS = fatty acid-CoA synthetase; CPT = carnitine palmitoyltransferase; CT = carnitine acyltransferase; TCA = tricarboxylic acid; AcAc = acetoacetate; β-HB = β-hydroxybutyrate