An Analysis of Abnormal Uptake of 131I Whole-Body Scan
Objective To investigate the incidence of abnormal 131I uptake in whole body scan and to analyze its influencing factors.Methods A total of 2 426 patients with 131I whole-body imaging in Beijing Nuclear Industry Hospital from January 1,2018 to June 30,2023 were retrospectively analyzed.The incidence of abnormal 131I uptake and types of false positive images in various locations of the body were summarized.Results A total of 405 cases were found to have abnormal uptake,including 258 cases of physiological uptake,95 cases of radioactive retention,4 cases of non-neoplastic pathological uptake,and 48 cases of radioactive contamination.There were 72 cases in the head,143 cases in the chest,143 cases in the abdomen and pelvis,and 32 cases in the limbs.Conclusion Abnormal uptake of 131I has a high incidence in whole body imaging and can occur in multiple locations of the body.A comprehensive understanding of the location and causes of abnormal uptake of 131I should be combined with clinical history and laboratory indicators to avoid wrong interpretation,which can effectively guide the future diagnosis and treatment of patients.In addition,unknown conditions could be accidentally found and which can be actively handled.
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