The Use of Positron Emission Computed Tomography and Computed Tomography in the Treatment of Gynecological Malignant Tumor

Abstract

Objective: Investigating the value of 18Fluorine-Fluorodesoxyglucose (18F-FDG) positron emission computed tomography/computed tomography (PET/CT) before and after the comprehensive treatment of gynecological malignant tumors is the study purpose. Method: In this study, the patients with gynecological malignant tumor who are examined by 18F-FDG PET/CT test are taken as the study objects, supplemented by image fusion algorithm to achieve the best fusion effect. At the same time, routine imaging examination is performed and confirmed by histopathology. Before and after comprehensive treatment, in terms of PET/CT, its predictive rate of positive as well as negative, sensitivity, specificity as well as accuracy are compared with conventional imaging. Results: Before comprehensive treatment, the positive predictive rate of PET/CT diagnosis is 100%, the sensitivity is 95.00%, and the accuracy is 95.00%. The positive predictive rate of conventional imaging diagnosis is 100%, the sensitivity is 73.75%, and the accuracy is 73.75%. In terms of the PET/CT sensitivity as well as accuracy, conventional imaging is lower than that of it. After comprehensive treatment, the positive predictive rate of PET/CT diagnosis is 96.30%, the negative predictive rate is 100.00%, the sensitivity is 100.00%, the specificity is 92.86%, and the accuracy is 95.50%. The positive predictive rate of conventional imaging diagnosis is 94.87%, the negative predictive rate is 68.29%, the sensitivity is 74.00%, the specificity is 93.33%, and the accuracy is 81.25%. In terms of the above indexes, conventional imaging is lower than PET/CT diagnosis. Conclusion: When it is compared with conventional imaging, 18F-FDG PET/CT has higher accuracy. Besides, it is more comprehensive when diagnosing gynecological cancer before and after comprehensive treatment, which is worthy of clinical promotion.