Volume 69, Issue 11 e29910
ONCOLOGY: RESEARCH ARTICLE

Prognostic value of texture analysis of the primary tumour in high-risk neuroblastoma: An 18F-DOPA PET study

Francesco Fiz

Corresponding Author

Francesco Fiz

Department of Nuclear Medicine, E.O. 'Ospedali Galliera', Genoa, Italy

Correspondence

Francesco Fiz, Nuclear Medicine Department, E.O. Ospedali Galliera, Mura delle Cappuccine 14, 16128 Genoa, Italy.

Email: [email protected]

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Gianluca Bottoni

Gianluca Bottoni

Department of Nuclear Medicine, E.O. 'Ospedali Galliera', Genoa, Italy

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Fabiano Bini

Fabiano Bini

Department of Mechanical and Aerospace Engineering, 'Sapienza' University of Rome, Rome, Italy

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Francesca Cerroni

Francesca Cerroni

Department of Mechanical and Aerospace Engineering, 'Sapienza' University of Rome, Rome, Italy

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Franco Marinozzi

Franco Marinozzi

Department of Mechanical and Aerospace Engineering, 'Sapienza' University of Rome, Rome, Italy

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Massimo Conte

Massimo Conte

Oncology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy

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Giorgio Treglia

Giorgio Treglia

Clinic of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland

Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland

Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland

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Giovanni Morana

Giovanni Morana

Pediatric Neuroradiology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy

Department of Neurosciences, University of Turin, Turin, Italy

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Stefania Sorrentino

Stefania Sorrentino

Oncology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy

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Alberto Garaventa

Alberto Garaventa

Oncology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy

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Giacomo Siri

Giacomo Siri

Scientific Directorate, E.O. 'Ospedali Galliera', Genoa, Italy

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Arnoldo Piccardo

Arnoldo Piccardo

Department of Nuclear Medicine, E.O. 'Ospedali Galliera', Genoa, Italy

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First published: 03 August 2022
Citations: 3

Abstract

Purpose

To evaluate the prognostic value of texture analysis of the primary tumour with 18fluorine-dihydroxyphenylalanine positron emission tomography/X-ray computed tomography (18F-DOPA PET/CT) in patients affected by high-risk neuroblastoma (HR-NBL).

Methods

We retrospectively analysed 18 patients with HR-NBL, which had been prospectively enrolled in the course of a previous trial investigating the diagnostic role of 18F-DOPA PET/CT at the time of the first onset. Texture analysis of the primary tumour was carried out on the PET images using LifeX. Conventional indices, histogram parameters, grey level co-occurrence (GLCM), run-length (GLRLM), neighbouring difference (NGLDM) and zone-length (GLZLM) matrices parameter were extracted; their values were compared with the overall metastatic load, expressed by means of whole-body metabolic burden (WBMB) score and the progression-free/overall survival (PFS and OS).

Results

There was a direct correlation between WBMB and radiomics parameter describing uptake intensity (SUVmean: p = .004) and voxel heterogeneity (entropy: p = .026; GLCM_Contrast: p = .001). Conversely, texture indices of homogeneity showed an inverse correlation with WBMB (energy: p = .026; GLCM_Homogeneity: p = .006). On the multivariate model, WBMB (p < .01) and the first standardised uptake value (SUV) quartile (p < .001) predicted PFS; OS was predicted by WBMB and the N-myc proto-oncogene protein (MYCN) amplification (p < .05) for both.

Conclusions

Textural parameters describing heterogeneity and metabolic intensity of the primary HR-NBL are closely associated with its overall metastatic burden. In turn, the whole-body tumour load appears to be one of the most relevant predictors of progression-free and overall survival.

CONFLICT OF INTEREST

The authors declare that no funds, grants or other support were received during the preparation of this manuscript. The authors have no relevant financial or non-financial interests to disclose.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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