Medical Imaging Center, 900 Hospital of the Joint Logistics Team (The Former Fuzhou General Hospital of Nanjing MilitaryCommand), Fuzhou Fujian 350025, China
Abstract：Objective To discuss the diagnostic value of dual phase PET/CT imaging in bladder cancer and its recurrence after
operation. Methods Retrospective analysis was conducted on the 57 cases of clinical suspicious or recurrence of bladder cancer
patients. All of the cases were performed conventional and delay of PET/CT scan, and comparison was performed on the lesions of
the dual phase scanning SUV value. Whether the lesion was a malignant tumor was determined according to the dual phase lesions
SUV values before and after the intake level, delayed SUV, the changes of lesions form change, was there a lymph node and distant
metastasis determine. The diagnosis was based on pathological and clinical follow-up results. Results The diagnostic accuracy of
delayed scanning was significantly higher than that of conventional scanning, with 71.9% accuracy of conventional scanning and
93.0% accuracy of delayed scanning. There was no statistically significant difference between conventional lesion SUV and delayed
lesion SUV. There was statistically significant difference between SUV in the conventional urine group and SUV in the delayed
urine group. The difference between conventional pathological SUV and conventional urine SUV was statistically significant. The
difference between delayed lesion SUV and delayed urine SUV was statistically significant. Conclusion The dual-phase PET/CT
examination technique is simple and feasible, and has high application value in the diagnosis of bladder cancer.
