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Browsing by Author "Sims, Justin B."
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Item PET and SPECT Imaging of the Brain: History, Technical Considerations, Applications, and Radiotracers(Elsevier, 2020-12) Davis, Korbin M.; Ryan, Joshua L.; Aaron, Vasantha D.; Sims, Justin B.; Graduate Medical Education, School of MedicineAdvances in nuclear medicine have revolutionized our ability to accurately diagnose patients with a wide array of neurologic pathologies and provide appropriate therapy. The development of new radiopharmaceuticals has made possible the identification of regional differences in brain tissue composition and metabolism. In addition, the evolution of 3-dimensional molecular imaging followed by fusion with computed tomography and magnetic resonance imaging have allowed for more precise localization of pathologies. This review will introduce single photon emission computed tomography and positron emission tomographic imaging of the brain, including the history of their development, technical considerations, and a brief overview of pertinent radiopharmaceuticals and their applications.Item PET/MRI vs PET/CT in Head and Neck Imaging: When, Why, and How?(Elsevier, 2019) Ryan, Joshua L.; Aaron, Vasantha D.; Sims, Justin B.; Radiology and Imaging Sciences, School of MedicineThe increasing availability of hybrid PET/MRI systems has led to a breadth of new publications and opportunities for use of PET/MRI. While PET/CT has been a valuable tool for oncologic staging, including head and neck malignancy, there are several theoretical and practical advantages a PET/MRI system would have over PET/CT in head and neck imaging. This review article discusses the established role of PET/CT, early evidence for the role of PET/MRI, and protocol considerations for both PET/CT and PET/MRI as they apply to head and neck imaging.