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. 2022 Feb 23;11(5):1210.
doi: 10.3390/jcm11051210.

Prognostic Role of Pre-Treatment Metabolic Parameters and Sarcopenia Derived by 2-[18F]-FDG PET/CT in Elderly Mantle Cell Lymphoma

Domenico Albano  1   2 , Nadia Pasinetti  3 , Francesco Dondi  1   2 , Raffaele Giubbini  2 , Alessandra Tucci  4 , Francesco Bertagna  1   2
Affiliations

Prognostic Role of Pre-Treatment Metabolic Parameters and Sarcopenia Derived by 2-[18F]-FDG PET/CT in Elderly Mantle Cell Lymphoma

Domenico Albano et al. J Clin Med. .

Abstract

The goal of this retrospective study was to analyze and compare the prognostic role of fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (2-[18F]-FDG PET/CT) features and sarcopenia, estimated by CT of PET in elderly (≥65 years) Mantle Cell Lymphoma (MCL). We recruited 53 patients, who underwent pre-treatment 2-[18F]-FDG PET/CT and end-of-treatment PET/CT, and the main semiquantitative parameters were calculated. Sarcopenia was measured as skeletal muscle index (SMI, cm2/m2) and derived by low-dose PET/CT images at the L3 level. Specific cut-offs for SMI were calculated by receiver operator curve and divided by gender. Metabolic response was evaluated at end-of-treatment PET/CT, applying the Deauville score. Progression Free Survival (PFS) and Overall Survival (OS) were calculated for the whole population and for different subgroups, defined as per different sarcopenia cut-off levels. The specific cut-offs to define sarcopenia were 53 cm2/m2 for male and 45.6 cm2/m2 for female. Thirty-two (60%) patients were defined as sarcopenic. The 3-year and 5-year PFS rates were 29% and 23%, while the 3-year and 5-year OS rates were 43% and 33%. Metabolic response, total metabolic tumor volume (tMTV), total lesion glycolysis (tTLG) and sarcopenia were independent prognostic factors for PFS. Considering OS, no variable was significantly associated. Combination between PET features and sarcopenia may help to predict PFS.

Keywords: 18F-FDG; MTV; Mantle Cell Lymphoma; PET/CT; TLG; sarcopenia.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flowchart of patients included.
Figure 2
Figure 2
Progression free survival according to Deauville score (a), tMTV (b), tTLG (c) and SMI (d).
Figure 3
Figure 3
Overall survival according to Deauville score (a), tMTV (b), tTLG (c) and SMI (d).
Figure 4
Figure 4
Kaplan–Meier curve considering the combination of tMTV and SMI.
See this image and copyright information in PMC

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