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Prognostic value of 18F-FDG standard uptake value by integrated PET/CT in the staging of malignant pleural mesothelioma.

Abstract：

:Malignant pleural mesothelioma (MPM) is a rare and aggressive tumor with generally disappointing results in terms of survival, however, there are occasional long-term survivors probably due to the biologic characteristics of the disease. Standard uptake value (SUV) of [(18)F] Fluorodeoxyglucose (FDG) evaluated by photon emission tomography (PET) is now widely accepted as an indicator of biologic behavior in several malignancies. The aim of this study was to verify whether SUV(max) and SUV(mean) are inversely associated with the prognosis of patients with MPM and whether there was a correlation between grading/disease stage and SUV value. Patients with histologically proven MPM underwent integrated PET and computed tomography (CT) scanning. Patients fasted and received 5.18 MBq of FDG per kilogram of body weight. Based on the maximum Chi-Square method, a SUV(max) of 4.21 (range: 2.30-14.74) and a SUV(mean) of 2.78 (range: 1.80-7.00) were used to classify patients as having a good or poor prognosis, respectively. From January 2004 to March 2010, 27 patients were analyzed: median age was 65 years (range: 54-77) and histologic MPM subtypes were epithelioid (23 patients) and biphasic (4 patients). At a median follow-up of 23 months (range: 1-52), there was no difference in median survival for either high or low SUV(max) [26 months (range: 11-not reached) vs.19 months (range: 12-not reached); p=0.811] or for high or low SUV(mean) [26 months (range: 8-not reached) vs.19 months (range: 11-not reached); p=0.831]. High SUV(max) (p=0.018) was statistically correlated with high-stage disease. There was only a trend towards statistical significance between high-grade disease and high SUV(mean) (p=0.083); no such trend was found between advanced stages and SUV(max) (p=0.268). We observed a significant correlation only between high SUV(max) and high-grade disease. No other relationships between SUV(max) and SUV(mean) with biologic and clinical parameters were found. This is probably due to the patient characteristics and to the non-routine use of 18F-FDG PET/CT to stage rare tumors such as MPM.

journal_name

Technol Cancer Res Treat

journal_title

Technology in cancer research & treatment

authors

Genestreti G,Moretti A,Piciucchi S,Tiseo M,Bersanelli M,Scarlattei M,Scarpi E,Dubini A,Matteucci F,Sanna S

doi

10.7785/tcrt.2012.500245

subject

Has Abstract

pub_date

2012-04-01 00:00:00

pages

163-7

issue

eissn

1533-0346

issn

1533-0338

pii

c4321/Prognostic-Value-of-18F-FDG-Standard-Uptake-

journal_volume

pub_type

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Prognostic value of 18F-FDG standard uptake value by integrated PET/CT in the staging of malignant pleural mesothelioma.