摘要
目的：探讨18F-FDG PET/CT结合高分辨率CT（HRCT）在肺炎型细支气管肺泡癌（PTBAC）诊断中的应用价值，以提高诊断准确率。资料与方法：搜集经病理证实26例PTBAC患者的18F-FDG PET/CT及HRCT影像资料，患者均先行18F-FDG PET/CT显像，其中15例根据诊断需要0~3 d内行HRCT检查，分析两者结合对PTBAC的诊断价值。结果：全组26例患者18F-FDG PET/CT显像检查，确切诊断肺癌9例，恶性不除外13例，肺感染性病变4例，确诊率为34.6%，误诊率较高；其中15例患者18F-FDG PET/CT显像后结合HRCT确切诊断肺癌13例，1例初次诊断感染性病变者后经结合HRCT图像诊断为肺癌，1例18F-FDG PET/CT显像及HRCT均疑为肺炎者，经18F-FDG PET/CT延迟显像后综合评判考虑肺癌，后病理证实；18F-FDG PET/CT结合HRCT诊断正确率达100%。结论：PTBAC的18F-FDG PET/CT显像特点及HRCT表现复杂多样，PET/CT结合HRCT在PTBAC诊断中的应用能够大大提高诊断准确率，减少误诊率。
Abstract
Objective: To evaluate the application value of 18F-FDG PET/CT combined with HRCT in diagnosing pneumonia type of bronchioloalveolar carcinoma(PTBAC). Materials and Methods: The 18F-FDG PET/CT images of 26 cases with pathologically confirmed PTBAC were studied. Fifteen of the 26 cases were followed up after 0~3 days by HRCT study. The diagnostic accuracy rate of 18F-FDG PET/CT combined with HRCT were analyzed. Results: According to 18F-FDG PET/CT imaging, definite diagnosis of malignant was made in 9 cases, no exclusion of malignancies in 13 cases, and definite diagnosis of pulmonary inflammation in 4 cases. The diagnostic accuracy rate of 18F-FDG PET/CT imaging was 34.6%. The misdiagnosis rate of 18F-FDG PET/CT was higher. Associating 18F-FDG PET/CT with HRCT, 13 of 15 cases were diagnosed as malignant tumors. Pulmonary inflammation was diagnosed firstly in 1 case by PET/CT, and then definite diagnosis of malignancy was confirmed by HRCT. In addition, the other one case of malignant tumor was analyzed as pulmonary inflammation by PET/CT and HRCT. However, 18F-FDG PET/CT displayed metastasis during the delay scanning, which was approved by pathology. Based on 18F-FDG PET/CT and HRCT results, 15 cases were diagnosed correctly. Conclusion: PTBAC displays a variety of characteristics in 18F-FDG PET/CT and HRCT. Combining 18F-FDG PET/CT with HRCT is reasonable and practicable for PTBAC diagnosis, which may be due to the synergistic effect on diagnosing PTBAC and can greatly improve the diagnostic accuracy.
关键词
腺癌 /
细支气管肺泡 /
氟脱氧葡萄糖F18 /
正电子发射断层显像术 /
体层摄影术 /
螺旋计算机
Key words
Adenocarcinoma /
bronchiolo-alveolar /
Fluorodeoxyglucose F18 /
Positron-emission tomography /
Tomography /
spiral computed
彭辽河;丁久荣;胡晓燕;邱大胜;李 杰;周 静;朱 佳.
18F-FDG PET/CT结合HRCT在肺炎型细支气管肺泡癌诊断中的应用[J]. 中国临床医学影像杂志. 2012, 23(10): 695-698
PENG Liao-he;DING Jiu-rong;HU Xiao-yan;QIU Da-sheng;LI Jie;ZHOU Jing;ZHU Jia.
Application of 18F-FDG PET/CT combined with HRCT in diagnosing pneumonia type of bronchioloalveolar carcinoma[J]. Journal of China Clinic Medical Imaging. 2012, 23(10): 695-698
中图分类号：
Ｒ734.2
Ｒ817.4
Ｒ814.42
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