"the scan is carried out 60 minutes post-injection of FDG"
"Waldeyer ring, e.g. palatine tonsils symmetrically, especially when younger 7"
Expected headings
"Physics"
"Radiopharmaceutical detection"
"Limitations"
"Attenuation correction"
"Normal physiological uptake"
"False-positive FDG uptake"
"Applications"
"Although the physiologic information afforded by PET and SPECT imaging is invaluable, the quality of obtained data is poor/noisy and limits imaging spatial resolution. For this reason, PET and SPECT scans are often combined with CT imaging, allowing correlation between functional and anatomical imaging ("hybrid imaging"). PET-MRI scanners have also become available, although their use remains limited and they are generally only found in the larger academic centres, often in a research setting."
"CT field of view is limited whereas PET field of view is usually larger; if patients are scanned with arms by their side this can lead to the abnormal reconstruction of the images"
"localising eloquent areas (e.g. speech, motor function)"