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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

Science: general issues --- Physics --- preclinical imaging --- PET --- SPECT --- MRI --- ultrasound --- microscopy --- quantification

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Positron emission tomography (PET) and single-photon emission computed tomography (SPECT) are in vivo molecular imaging methods which are widely used in nuclear medicine for diagnosis and treatment follow-up of many major diseases. These methods use target-specific molecules as probes, which are labeled with radionuclides of short half-lives that are synthesized prior to the imaging studies. These probes are called radiopharmaceuticals. The use of PET and SPECT for brain imaging is of special significance since the brain controls all the body’s functions by processing information from the whole body and the outside world. It is the source of thoughts, intelligence, memory, speech, creativity, emotion, sensory functions, motion control, and other important body functions. Protected by the skull and the blood–brain barrier, the brain is somehow a privileged organ with regard to nutrient supply, immune response, and accessibility for diagnostic and therapeutic measures. Invasive procedures are rather limited for the latter purposes. Therefore, noninvasive imaging with PET and SPECT has gained high importance for a great variety of brain diseases, including neurodegenerative diseases, motor dysfunctions, stroke, epilepsy, psychiatric diseases, and brain tumors. This Special Issue focuses on radiolabeled molecules that are used for these purposes, with special emphasis on neurodegenerative diseases and brain tumors.

Research & information: general --- Biology, life sciences --- SV2A --- SV2B --- SV2C --- microPET --- [18F]UCB-H --- epilepsy --- PBIF --- distribution volume --- blocking assay --- preclinical imaging --- Alzheimer’s disease (AD) --- network measure --- graph theory --- brain network --- positron emission tomography (PET) --- persistent homology --- Phosphodiesterase 2A (PDE2A) --- Positron Emission Tomography (PET) --- Benzoimidazotriazine (BIT) --- fluorinated --- Mouse Liver Microsomes (MLM) --- cyclic nucleotide phosphodiesterase --- PDE2A radioligand --- nitro-precursor --- fluorine-18 --- in vitro autoradiography --- PET imaging --- opioid receptors --- positron emission tomography --- radiotracers --- μOR-, δOR-, κOR- and ORL1-ligands --- movement disorders --- pain --- drug dependence --- GBM --- biomarkers --- Sigma 1 --- Sigma 2 --- PD-L1 --- PARP --- IDH --- Alzheimer’s disease --- Parkinson’s disease --- β-amyloid plaques --- neurofibrillary tangles --- α-synucleinopathy --- diagnostic imaging probes --- orexin receptors --- PET --- radiotracer --- imaging --- alpha 7 --- nicotinic acetylcholine receptors --- nAChR --- autoradiography --- amino acid --- FET --- FACBC --- FDOPA --- immunoPET --- molecular imaging --- glioma --- brain metastases --- adenosine A2A receptor --- rotenone-based mouse model --- [18F]FESCH --- two-step one-pot radiosynthesis

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Positron emission tomography (PET) and single-photon emission computed tomography (SPECT) are in vivo molecular imaging methods which are widely used in nuclear medicine for diagnosis and treatment follow-up of many major diseases. These methods use target-specific molecules as probes, which are labeled with radionuclides of short half-lives that are synthesized prior to the imaging studies. These probes are called radiopharmaceuticals. The use of PET and SPECT for brain imaging is of special significance since the brain controls all the body’s functions by processing information from the whole body and the outside world. It is the source of thoughts, intelligence, memory, speech, creativity, emotion, sensory functions, motion control, and other important body functions. Protected by the skull and the blood–brain barrier, the brain is somehow a privileged organ with regard to nutrient supply, immune response, and accessibility for diagnostic and therapeutic measures. Invasive procedures are rather limited for the latter purposes. Therefore, noninvasive imaging with PET and SPECT has gained high importance for a great variety of brain diseases, including neurodegenerative diseases, motor dysfunctions, stroke, epilepsy, psychiatric diseases, and brain tumors. This Special Issue focuses on radiolabeled molecules that are used for these purposes, with special emphasis on neurodegenerative diseases and brain tumors.

Research & information: general --- Biology, life sciences --- SV2A --- SV2B --- SV2C --- microPET --- [18F]UCB-H --- epilepsy --- PBIF --- distribution volume --- blocking assay --- preclinical imaging --- Alzheimer’s disease (AD) --- network measure --- graph theory --- brain network --- positron emission tomography (PET) --- persistent homology --- Phosphodiesterase 2A (PDE2A) --- Positron Emission Tomography (PET) --- Benzoimidazotriazine (BIT) --- fluorinated --- Mouse Liver Microsomes (MLM) --- cyclic nucleotide phosphodiesterase --- PDE2A radioligand --- nitro-precursor --- fluorine-18 --- in vitro autoradiography --- PET imaging --- opioid receptors --- positron emission tomography --- radiotracers --- μOR-, δOR-, κOR- and ORL1-ligands --- movement disorders --- pain --- drug dependence --- GBM --- biomarkers --- Sigma 1 --- Sigma 2 --- PD-L1 --- PARP --- IDH --- Alzheimer’s disease --- Parkinson’s disease --- β-amyloid plaques --- neurofibrillary tangles --- α-synucleinopathy --- diagnostic imaging probes --- orexin receptors --- PET --- radiotracer --- imaging --- alpha 7 --- nicotinic acetylcholine receptors --- nAChR --- autoradiography --- amino acid --- FET --- FACBC --- FDOPA --- immunoPET --- molecular imaging --- glioma --- brain metastases --- adenosine A2A receptor --- rotenone-based mouse model --- [18F]FESCH --- two-step one-pot radiosynthesis