4.7 Article

Detection efficacy of analog [18F]FDG PET/CT, digital [18F]FDG, and [13N]NH3 PET/CT: a prospective, comparative study of patients with lung adenocarcinoma featuring ground glass nodules

期刊

EUROPEAN RADIOLOGY
卷 33, 期 3, 页码 2118-2127

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SPRINGER
DOI: 10.1007/s00330-022-09186-4

关键词

[F-18]FDG; Molecular imaging; PET; CT; Solitary pulmonary nodule; Lung adenocarcinoma

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This study compared the detection efficacy of different types of PET/CT for lung adenocarcinoma with GGNs. It found that dF PET/CT had better detection performance compared to aF PET/CT, especially in mGGNs. Additionally, dN PET/CT had better detection performance compared to dF PET/CT, particularly in pGGNs.
Objectives This prospective study compared the detection efficacy of analog F-18-fluoro-2-deoxyglucose (F-18-FDG) positron emission tomography (PET)/computed tomography (CT) (aF PET/CT), digital [F-18]FDG PET/CT (dF PET/CT), and digital N-13-ammonia (N-13-NH3) PET/CT (dN PET/CT) for patients with lung adenocarcinoma featuring ground glass nodules (GGNs). Methods Eighty-seven patients with lung adenocarcinoma featuring GGNs who underwent dF and dN PET/CT were enrolled. Based on the GGN component, diameter, and solid-part size, 87 corresponding patients examined using aF PET/CT were included, with age, sex, and lesion characteristics closely matched. Images were visually evaluated, and the tumor to background ratio (TBR) was used for semi-quantitative analysis. Results Ultimately, 40 and 47 patients with pure GGNs (pGGNs) and mixed GGNs (mGGNs), respectively, were included. dF PET/CT revealed more positive lesions and higher tracer uptake in GGNs than did aF PET/CT (53/87 vs. 26/87, p < 0.05; TBR: 3.08 +/- 4.85 vs. 1.42 +/- 0.93, p < 0.05), especially in mGGNs (44/47 vs. 26/47, p < 0.05; TBR: 4.48 +/- 6.17 vs. 1.78 +/- 1.16, p < 0.05). However, dN PET/CT detected more positive lesions than did dF PET/CT (71/87 vs. 53/87, p < 0.05), especially in pGGNs (24/40 vs. 9/40, p < 0.05). Conclusions dF PET/CT provides superior detection efficacy over aF PET/CT for patients with lung adenocarcinoma featuring GGNs, particularly mGGNs. dN PET/CT revealed superior detection efficacy over dF PET/CT, particularly in pGGNs. aF, dF, and dN PET/CT are valuable non-invasive examinations for lung cancer featuring GGNs, with dN PET/CT offering the best detection performance.

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