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Nucl Med Commun. 2021 Aug 01;42(8):839-845. doi: 10.1097/MNM.0000000000001407.

The role of 18F-Fluorodeoxyglucose PET/CT in restaging patients with small cell lung cancer: a systematic review.

Nuclear medicine communications

Natale Quartuccio, Ahmed Salem, Riccardo Laudicella, Alessandro Spataro, Agostino Chiaravalloti, Federico Caobelli, Angelina Cistaro, Pierpaolo Alongi, Laura Evangelista

Affiliations

  1. Nuclear Medicine Unit, ARNAS Ospedali Civico, Di Cristina e Benfratelli, Palermo, Italy.
  2. Division of Cancer Sciences, University of Manchester.
  3. Clinical Oncology Department, Christie NHS Foundation Trust, Manchester, UK.
  4. Nuclear Medicine Unit, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina.
  5. Department of Biomedicine and Prevention, University Tor Vergata, Rome.
  6. Nuclear Medicine Section, IRCCS Neuromed, Pozzilli, Italy.
  7. Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Petersgraben, Basel, Switzerland.
  8. Department of Nuclear Medicine, E.O. Ospedali Galliera, Genoa.
  9. Unit of Nuclear Medicine, Fondazione Istituto G.Giglio, Cefalù.
  10. Nuclear Medicine Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy.

PMID: 33741854 DOI: 10.1097/MNM.0000000000001407

Abstract

AIM: 18F-Fluorodeoxyglucose (FDG) PET imaging may play an important role in the restaging of patients with small-cell lung cancer (SCLC),, nevertheless, a systematic review of literature was still missing in this setting. The aim of this review was to summarize the evidence on literature regarding the utility of 18F-FDG PET imaging in restaging patients with SCLC.

METHODS: A literature search was performed to retrieve original studies using 18F-FDG PET or 18F-FDG PET/computed tomography (CT) in a minimum of 10 patients with SCLC at restaging.

RESULTS: The selected literature (17 studies) was discussed in four sections: detection rate, impact on management, prediction of prognosis and evaluation of the response to therapy. According to the literature, PET imaging may result in discordance with conventional imaging, mainly contrast-enhanced CT (ceCT), and detect additional lesions in a certain proportion of cases, leading to upstaging or downstaging. A variable level of disagreement between PET and conventional imaging has been reported also in the evaluation of response to therapy. A positive PET study is associated with shorter survival, especially in the presence of distant metastases. According to some studies, semiquantitative parameters are also inversely associated with overall survival and progression-free survival. Although the retrieved articles proved the utility of 18F-FDG PET imaging in each clinical setting, literature is still limited.

CONCLUSIONS: This review encourages the use of 18F-FDG PET imaging, especially in conjunction with ceCT in recurrent SCLC patients. Further level I evidence is needed to further assess the diagnostic and prognostic capability of 18F-FDG PET/ceCT findings in SCLC.

Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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