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Published in: European Journal of Nuclear Medicine and Molecular Imaging 8/2020

01-07-2020 | Metastasis | Original Article

Comparison of [68Ga]Ga-DOTA-FAPI-04 and [18F] FDG PET/CT for the diagnosis of primary and metastatic lesions in patients with various types of cancer

Authors: Haojun Chen, Yizhen Pang, Jingxun Wu, Liang Zhao, Bing Hao, Jing Wu, Jihong Wei, Siming Wu, Long Zhao, Zuoming Luo, Xuehua Lin, Chengrong Xie, Long Sun, Qin Lin, Hua Wu

Published in: European Journal of Nuclear Medicine and Molecular Imaging | Issue 8/2020

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Abstract

Purpose

We evaluated the potential usefulness of [68Ga]Ga-DOTA-FAPI-04 positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various types of cancer, compared with [18F] FDG PET/CT.

Methods

A total of 75 patients with various types of cancer underwent contemporaneous [68Ga]Ga-DOTA-FAPI-04 and [18F] FDG PET/CT either for an initial assessment or for recurrence detection. Tumour uptake was quantified by the maximum standard uptake value (SUVmax). The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of [18F] FDG and [68Ga]Ga-DOTA-FAPI-04 PET/CT were calculated and compared to evaluate the diagnostic efficacy.

Results

The study cohort consisted of 75 patients (47 males and 28 females; median age, 61.5 years; age range, 32–85 years). Fifty-four patients with 12 different tumour entities underwent paired [68Ga]Ga-DOTA-FAPI-04 and [18F] FDG PET/CT for initial assessment, while the other 21 patients underwent paired scans for recurrence detection. [68Ga]Ga-DOTA-FAPI-04 PET/CT was able to clearly identify 12 types of malignant tumours with favourable tumour-to-background contrast, which resulted in a higher detection rate of primary tumours than did [18F] FDG PET/CT (98.2% vs. 82.1%, P = 0.021). Meanwhile, [68Ga]Ga-DOTA-FAPI-04 PET/CT showed a better sensitivity than [18F] FDG PET/CT in the detection of lymph nodes (86.4% vs. 45.5%, P = 0.004) and bone and visceral metastases (83.8% vs. 59.5%, P = 0.004).

Conclusion

[68Ga]Ga-DOTA-FAPI-04 PET/CT showed a superior diagnostic efficacy than [18F] FDG PET/CT for the diagnosis of primary and metastatic lesions in patients with various types of cancer, especially in identifying liver metastases, peritoneal carcinomatosis, and brain tumours.
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Metadata
Title
Comparison of [68Ga]Ga-DOTA-FAPI-04 and [18F] FDG PET/CT for the diagnosis of primary and metastatic lesions in patients with various types of cancer
Authors
Haojun Chen
Yizhen Pang
Jingxun Wu
Liang Zhao
Bing Hao
Jing Wu
Jihong Wei
Siming Wu
Long Zhao
Zuoming Luo
Xuehua Lin
Chengrong Xie
Long Sun
Qin Lin
Hua Wu
Publication date
01-07-2020
Publisher
Springer Berlin Heidelberg
Keyword
Metastasis
Published in
European Journal of Nuclear Medicine and Molecular Imaging / Issue 8/2020
Print ISSN: 1619-7070
Electronic ISSN: 1619-7089
DOI
https://doi.org/10.1007/s00259-020-04769-z

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