A study in The Journal of Nuclear Medicine found that the imaging time window of 64Cu-DOTATATE PET/CT of patients with neuroendocrine neoplasms can be expanded from one to three hours without significant differences in the number of lesions identified, while the tumor-to-normal tissue ratios in all key organs, such as bone, intestines, liver and pancreas, remain consistently high at one and three hours after injection. Researchers suggest that an expanded PET imaging time window provides flexibility and adds convenience for routine imaging of neuroendocrine tumor patients, despite the five discordant lesions detected on one of the PET scans but not the other.
PET time window in neuroendocrine neoplasm examined
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