Head to head comparison of 68Ga-DOTA-FAPI-04 vs 18F-FDG PET/CT in the evaluation of primary extrapulmonary tumors in the chest

被引：1
作者：
Zhang, Annan [1 ]
Meng, Xiangxi [1 ]
Yao, Yuan [1 ]
Zhou, Xin [1 ]
Zhang, Yan [1 ]
Li, Nan [1 ]
机构：
[1] Peking Univ Canc Hosp & Inst, Minist Educ Beijing, Dept Nucl Med, Key Lab Carcinogenesis & Translat Res, 52 Fucheng Rd, Beijing 100142, Peoples R China
来源：
EUROPEAN RADIOLOGY | 2024年 / 34卷 / 03期
基金：
中国国家自然科学基金;
关键词：
F-18-FDG; Ga-68-FAPI; PET/CT; Extrapulmonary tumors; SUV; EMISSION TOMOGRAPHY/COMPUTED TOMOGRAPHY; SOLITARY FIBROUS TUMOR; MESOTHELIOMA; CARCINOMA; VOLUME;
D O I：
10.1007/s00330-023-10130-3
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Objective We conducted a prospective study using 18F-flurodeoxyglucose (F-18-FDG) and Ga-68-DOTA-FAPI-04 (fibroblast -activation protein inhibitor, Ga-68-FAPI) PET/CT to diagnose, differentiate, and stage primary extrapulmonary tumors of the thorax.Methods Fifty-four participants were undergoing F-18-FDG and Ga-68-FAPI PET/CT and divided into the benign, intermediate, and malignant based on pathology. The maximum standardized uptake value (SUVmax), the tumor-to-blood pool ratio, and tumor-to-liver ratio were compared for primary tumors, lymph nodes, and metastases between the two modalities by two independent samples t tests. One-way ANOVA was used to compare the uptake of 18F-FDG or 68Ga-FAPI among the three groups.Results Fifty-four participants were confirmed to have 71 primary lesions, 56 metastatic lymph nodes, and 43 metastatic lesions. F-18-FDG PET/CT could both effectively distinguish malignant lesions from non-malignant lesions, accuracies of 87.32% (p < 0.001). Ga-68-FAPI PET/CT effectively differentiated benign lesions from the non-benign, accuracy being 91.55% (p < 0.001). The accuracies of F-18-FDG and Ga-68-FAPI for detecting lymph node metastasis were 77.22% (61/79) and 87.34% (69/79) (p = 0.096). The uptake of Ga-68-FAPI in metastatic lymph nodes was significantly higher than that of the nonmetastatic (p < 0.001). The detection rate of Ga-68-FAPI PET/CT for metastatic lesions was significantly higher than that of F-18-FDG, 100% (43/43) vs. 53.49% (23/43) (p < 0.001). Compared with F-18-FDG PET/CT, Ga-68-FAPI PET/ CT changed the treatment strategy of 7.4% (4/54) participants.Conclusion( 68)Ga-FAPI PET/CT is valuable in the diagnosis and differentiation of primary extrapulmonary tumors and superior to F-18-FDG PET/CT for evaluating lymph node and distant metastasis.Clinical relevance statement The application of Ga-68-FAPI PET/CT in primary extrapulmonary chest tumors is valuable, which is reflected in diagnosis, differentiation and exploration of lymph node metastasis and distant metastasis.
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页码：1960 / 1970
页数：11
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