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PET Imaging in the Management of Neuroendocrine Tumors, An Issue of PET Clinics, E-Book

PET Imaging in the Management of Neuroendocrine Tumors, An Issue of PET Clinics, E-Book

Stefano Fanti | Cristina Nanni | Richard P. Baum

(2014)

Additional Information

Book Details

Abstract

Nuclear Medicine has greatly contributed to the diagnosis and treament of neuroendocrine neoplasms. This issue of PET Clinics will focus not only on the diagnosis and treatment of neuroendocrine tumors, but also theranostics. Topics include SPECT and other PET tracers, F-DOPA, Ga-DOTA-peptides, Yttrium- and Lutetium-based therapy, and the role of FDG PET. It also covers key information of theranostics.

Table of Contents

Section Title Page Action Price
Front Cover Cover
PET Imaging in the Management of Neuroendocrine Tumors i
Copyright ii
Contributors iii
Contents v
PET Clinics viii
CME Page\r ix
Section I: Nuclear Medicine in the Diagnosis and Treatment of Neuroendocrine Neoplasms A1
Nuclear Medicine Procedures in the Diagnosis of NET 1
Key points 1
Neuroendocrine tumors: a clinical point of view 1
Pathologic Setting 1
Epidemiology 2
Markers 3
Radiopharmaceuticals and Protocols 3
SPECT radiotracers 3
Evolution of scanner for SPECT radiotracers 5
PET radiotracers 5
Evolution of scanner for PET radiotracers 6
References 7
Single-Photon Emission Computed Tomography Tracers in the Diagnostics of Neuroendocrine Tumors 11
Key points 11
Introduction 11
The radiopharmaceuticals 12
A Metabolic Probe for the Study of NETs: Meta-131I-Benzylguanidine 12
SS and Its Analogues 12
Nuclear Medicine Receptor Imaging: an Outline 12
Imaging technique 13
mIBG Scintigraphy 14
Clinical indications 14
Precaution before examining/preparing the patient and recommendations 14
Radiopharmaceutical injection and recommendation after the tracer administration 14
Imaging acquisition 14
SRS 15
Clinical indications 15
Precaution before undertaking the examination/preparation of the patient and recommendations 15
Radiopharmaceutical injection and recommendation after tracer administration 15
Imaging acquisition 15
Imaging findings 15
GEP NETs 16
NETs of the Lung 17
Pheochromocytoma and Paraganglioma 18
Neuroblastoma 19
Medullary Thyroid Carcinoma 20
Merkel Cell Carcinoma 20
Thymic Carcinoids 20
Pituitary 21
Differential Diagnosis, Pitfalls 21
Appendix 23
Summary 23
References 23
18F-Fluorodihydroxyphenylalanine in the Diagnosis of Neuroendocrine Tumors 27
Key points 27
Introduction 27
Imaging technique and analysis 28
Gastroenteropancreatic neuroendocrine tumors 30
Pheochromocytoma and paraganglioma 31
Medullary thyroid cancer 32
Summary 34
References 35
68Ga-DOTA-peptides in the Diagnosis of NET 37
Key points 37
Comparison of 68Ga-DOTA-peptides with metabolic tracers 39
68Ga-DOTA-peptides PET/CT imaging protocol 39
Pitfalls in image interpretation 40
Summary 40
References 41
Role of 18F-Fluorodeoxyglucose PET in the Study of Neuroendocrine Tumors 43
Key points 43
Introduction 43
Mechanism of 18F-FDG uptake 44
NETs 44
Enterochromaffin Cell Tumors 45
Sympathomedullary Tumors 50
MTC 51
References 53
Other PET Tracers for Neuroendocrine Tumors 57
Key points 57
Introduction 57
MIBG imaging the catecholamine pathway 58
β-[11C]-5-HTP imaging the serotonin pathway 60
Summary 61
References 62
Preclinical Studies of SPECT and PET Tracers for NET 63
Key points 63
Introduction 63
Exendin 64
Gastrin 65
Bombesin 66
Summary 67
References 67
Yttrium-Based Therapy for Neuroendocrine Tumors 71
Key points 71
Introduction 71
Radiobiologic basis of PRRT 72
Distinctive features of tumor irradiation 73
Clinical dosimetry 73
Safety profile 74
Kidney 75
Bone Marrow 76
Others 76
Efficacy 77
Final considerations 79
References 80
Section II: Theranostics of Neuroendocrine Neoplasms A3
Patient Selection for Personalized Peptide Receptor Radionuclide Therapy Using Ga-68 Somatostatin Receptor PET/CT 83
Key points 83
How does SUV relate with SSTR density? 83
Impact of 68Ga-SSTR PET/CT on management of NETs 84
Additional role of FDG PET/CT 86
Pretherapeutic SUVs and posttherapeutic response 88
References 89
Theranostics with Ga-68 Somatostatin Receptor PET/CT 91
Key points 91
Introduction 91
Response assessment using PET 92
68Ga-somatostatin receptor PET/CT 92
Role of additional 18F-FDG PET/CT 95
Future perspectives 95
References 97
Relevance of PET for Pretherapeutic Prediction of Doses in Peptide Receptor Radionuclide Therapy 99
Key points 99
Dosimetry in radionuclide therapy 99
State of the Art and Controversies 99
Dosimetry in Peptide Receptor Radionuclide Therapy 100
Dosimetric Imaging in PRRT 101
PET imaging techniques and practices 101
86Y 101
PET imaging of 86Y 101
Dosimetry based on 86Y-petides 102
Summaries drawn from 86Y-based dosimetry 102
90Y 103
PET imaging of 90Y 103
Dosimetry based on 90Y-PET 105
68Ga 105
Correlations of 68Ga uptake with absorbed 177Lu dose 105
Future perspectives 107
44Sc: a New Outlook? 108
Summary 108
References 109
Index 113