Role of F-18 FDG PET-CT in Follow up Patients with Rectal Carcinoma: Single Institute Based Study

Introduction: F-18 Fluorodeoxyglucose Positron Emission Tomography (18F-FDG PET/CT) is a hybrid non-invasive imaging tool that integrates PET and CT into single device. It used to detect measure metabolic activity in cancer cell and, hence, can provide anatomic information. 18F-FDG PET/CT useful for the detection of loco-regional recurrence, distant metastases, monitoring therapy response patients with rectal carcinoma. This study was done see usefulness follow-up evaluation Materials Methods: retrospective division National Institute Nuclear Medicine & Allied Sciences (NINMAS) between January 2021 December 2022. A total 26 carcinoma, requested an FDG PET-CT scan were enrolled this study. Image findings analyzed properly documented predesigned format evaluate results. Results: Total average age 47.69 follow up period 6 months 5 years Histologically adenocarcinoma seen 21 patients, four mucinous, two papillary, carcinoid tumor found one patient. On imaging, no metastases 17 (65.4%) out 9 (34.6%) patients. Among them (44.5%) had lung, (22.2%) lymph nodes, (11.1%) liver node (%11.1) skeletal peritoneal metastases. No significant association observed histopathology or treatment protocol. CEA higher lower those without. Conclusion: effective carcinoma as it accurately locoregional recurrence Bangladesh J. Med. 25(2): 105-109, 2022