【摘 要】
：
Objective: To conclude features of combined positron emission tomography (PET) and computed tomography (CT) in detection of pelvic recurrence in patients with rectal cancer who underwent abdominoperin
【机 构】
：
Department of nuclear medicine,Key laboratory of Carcinogenesis and Translational Research (Ministry
【出 处】
：
The 1st Sino-American Conference on Nuclear Medicine(首届中美核医学
论文部分内容阅读
Objective: To conclude features of combined positron emission tomography (PET) and computed tomography (CT) in detection of pelvic recurrence in patients with rectal cancer who underwent abdominoperineal or anterior resection.Methods: Eighteen patients with suspected recurrent rectal cancer were enrolled; 10 were men, and 8 were women.The mean age was 58(range: 38-79).The time of afteroperation ranged from three months to seven years.The patients fasted at least 6 hours prior to intravenous injection of 18F-FDG (3.7MBq/kg).Scanning from the base of the skull through the midthigh was performed with the Philips Gimini TF.Two readers interpreted images in consensus.Pelvic recurrence was confirmed with histologic analysis or clinical and imaging follow-up.RESULTS: There were 25 pelvic sites detected.22 were malignant and the other three were benign.The recurrent sites were all with increased 18F-FDG-uptake,and the maximal standardized uptake value(SUVmax) was 5.63±1.90.On the other hand,the benign lesions had lower uptake and SUVmax was 2.0±0.79.Its obvious the difference of 18F-FDG-uptake between malignant and benign lesions.Most recurrence sites located in the surrounding tissues ,presacral region and perineum.The 18F-FDG-uptake of recurrence was ofen focal and intense.CONCLUSIONS:It was reported that the local recurrence rate after resection of rectal carcinoma was above 30%.In patients with suspected recurrent rectal cancer,18F-FDG PET/CT has been found to be especially useful not only for differentiating between disease recurrence and postoperative scarring,but also for detecting recurrence at unexpected sites.
其他文献
Objective: To evaluate the value of 18F-fluorodeoxyglucose (18F-FDG) PET/CT in the follow-up of post-treatment patients with gastric cancer, to investigate the impact of 18F-FDG PET/CT on the clinical
Objective : The "normal-sized ovary carcinoma syndrome (NOCS)" is defined as a clinical situation, in which diffuse metastatic malignant disease of the abdominal cavity of the female with normal-sized
Objective: To predict the postoperative pulmonary function using ventilation-perfusion scintigraphy and explore its feasibility in evaluating surgical risk for lung cancer patients with borderline pul
Objective: This study is to determine whether dual phase C-11 acetate PET imaging pattern can be used in the differential diagnosis of hepatic tumors.Methods: 36 patients with hepatic tumors were sele
Objective: To establish cervical cancer Hela-NIS(+) cell lines stably expressing human sodium iodide symporter (NIS), and explore the feasibility of imaging and treatment of cervical cancer xenograft
Objective: To discuss the clinical value of hybrid SPECT/CT for the detection and estimation of the severity of ischemia caused by coronary lesions, precise localization of coronary artery plaques.Met
Objective: To investigate the function of TPS preoperative plan and TPS postoperative quality of verification in 125I seeds brachytherapy treatment of the orbital tumors.Methods: Retrospective analysi
Objective: To label the Arg-Gly-Asp containing peptide RGD which specificly bind with αvβ3 receptor expressed in tumor angiogenesis by pertechnetate, and evaluate its biodistribution in human lung ade
Objectives: To analyze the value of diagnosis in early renal damage in patients with primary nephrotic syndrome (PNS) by 99mTc-DTPA renal dynamic imaging.Methods: Twenty-one healthy controls (10 men,
Objective: Technetium 99m-N-MPO ([Tc-99m-N(mpo)(PNP5)](+)) is a cationic Tc-99m nitrido complex.The objective of this study is to evaluate its potential as a new radiotracer for myocardial perfusion i