Abstract
The brain is the most complex and intriguing part of the human body. Acceleration of neuroscience research and development over the last few decades has given us exciting new technologies to better understand brain function. Imaging modalities have become fundamental tools for the diagnosis and evaluation of brain pathologies, with molecular imaging offering the possibility to image and quantify brain function “in vivo.”
However, functional imaging interpretation can be challenging and requires appropriate training. Single-photon emission tomography (SPECT) and positron emission tomography (PET) possess a lower spatial resolution compared to anatomic imaging methods such as magnetic resonance imaging (MRI). In addition, the introduction of hybrid technologies, which can provide correlative anatomic imaging via CT or MRI into the functional studies, requires additional training.
The intent of this chapter is to provide a rational guide for molecular brain imaging interpretation, which is suitable for all levels of expertise. The content includes a teaching directory with fundamental knowledge, and a tutorial for systematic imaging analysis based on visual assessment as well as semiquantitative analysis. Suggestions for how to adequately report studies in each molecular imaging modality will be presented in a case mode. Clinical situations where molecular imaging can aid in the diagnosis of different neurodegenerative pathologies will be discussed.
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Acknowledgments
The authors would like to thank Drs. Kazunari Ishii (Kindai University, Japan), Ming-Kai Chen (Yale University, USA), Chakmeedaj Sethanandha (Mahidol University, Thailand), Jan Booij (University of Amsterdam, Holland), and Victor Villemagne (University of Melbourne, Australia) for contributing the images and cases for this chapter.
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Appendix
Appendix
MR Atlas
The images presented are from a healthy middle-aged male subject, acquired on a GE SIGNA Pioneer 3.0T MRI scanner. Each page contains images in axial plane from top-to-bottom, demonstrating the structures whose recognition is essential in the interpretation of a molecular imaging scan.
FDG Atlas
The images presented are from a healthy cognitively normal middle-aged female subject, acquired on a PET/CT (Discovery PET/CT scanner). The PET images were co-registered to the patient’s MR acquired in a 3T MR system (Ingenia, Philips Medical system). Each page contains images in axial plane from top-to-bottom, demonstrating the structures whose recognition is essential in the interpretation of a molecular imaging scan.
Images courtesy from Dr. Chakmeedaj Sethanandha, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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Mosci, K., Thientunyakit, T., Cross, D.J., Bischof, G.N., Arbizu, J., Minoshima, S. (2023). Case-Based Guide for Image Interpretation and Reporting. In: Cross, D.J., Mosci, K., Minoshima, S. (eds) Molecular Imaging of Neurodegenerative Disorders. Springer, Cham. https://doi.org/10.1007/978-3-031-35098-6_17
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