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目的 比较PET CT与PET的定位诊断价值。方法 选择有全身不同部位病变的12 0例PET CT显像患者,男74例,女4 6例,年龄2 3～78岁,中位年龄5 4 6岁。包括头颈部病变30例,胸部病变4 0例,腹盆腔病变30例,骨骼病变2 0例。分析PET图像和PET CT融合图像,以准确定位、不能准确定位但不影响诊断、不能准确定位影响诊断3种标准评价PET和PET CT的定位能力。结果PET对病变的定位准确性为2 9 2 % ,总的不影响诊断的定位准确性为6 9 2 % ;PET CT对病变的定位准确性为86 7% ,总的不影响诊断的定位准确性为93 3% (P <0 0 0 1)。结论 PET CT在病变精确定位方面明显优于PET。
Objective To compare the diagnostic value of PET CT and PET. Methods A total of 120 patients with PET CT scans of different parts of the body were selected, including 74 males and 46 females, ranging in age from 23 to 78 years, with a median age of 546 years. Including head and neck lesions in 30 cases, 40 cases of chest lesions, abdominal pelvic lesions in 30 cases, 20 cases of skeletal lesions. PET images and PET CT fusion images were analyzed to accurately locate, not accurately locate but did not affect the diagnosis, can not accurately locate the three diagnostic criteria for PET and PET CT positioning ability. Results The accuracy of localization of PET was 292%, and the accuracy of localization of PET was 692%. The accuracy of localization of PET was 86.7%, which did not affect the accuracy of diagnosis Sex was 93 3% (P <0 0 0 1). Conclusion PET CT is better than PET in the precise location of the lesion.