ID 49669
JaLCDOI
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Author
Alafate, Aierken
Okumura, Yoshihiro
Ishii, Hiroaki
Fujiwara, Toshiyoshi ORCID Kakenhi
Kaji, Mitsumasa
Abstract
We retrospectively evaluated the accumulation of fluorodeoxy glucose (FDG) in pulmonary malignancies without local recurrence during 2-year follow-up on positron emission tomography (PET)/computed tomography (CT) after radiofrequency ablation (RFA). Thirty tumors in 25 patients were studied (10 non-small cell lung cancers;20 pulmonary metastatic tumors). PET/CT was performed before RFA, 3 months after RFA, and 6 months after RFA. We assessed the FDG accumulation with the maximum standardized uptake value (SUVmax) compared with the diameters of the lesions. The SUVmax had a decreasing tendency in the first 6 months and, at 6 months post-ablation, FDG accumulation was less affected by inflammatory changes than at 3 months post-RFA. The diameter of the ablated lesion exceeded that of the initial tumor at 3 months post-RFA and shrank to pre-ablation dimensions by 6 months post-RFA. SUVmax was more reliable than the size measurements by CT in the first 6 months after RFA, and PET/CT at 6 months post-RFA may be more appropriate for the assessment of FDG accumulation than that at 3 months post-RFA.
Keywords
fluorodeoxy glucose (FDG)
positron emission tomography (PET)
standardized uptake value (SUV)
radiofrequency ablation (RFA)
non-small cell lung cancer (NSCLC)
Amo Type
Original Article
Published Date
2013-04
Publication Title
Acta Medica Okayama
Volume
volume67
Issue
issue2
Publisher
Okayama University Medical School
Start Page
105
End Page
112
ISSN
0386-300X
NCID
AA00508441
Content Type
Journal Article
language
英語
Copyright Holders
CopyrightⒸ 2013 by Okayama University Medical School
File Version
publisher
Refereed
True
PubMed ID
Web of Sience KeyUT
Related Url
http://ousar.lib.okayama-u.ac.jp/metadata/50688