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Relationship Between 18F-FDG Uptake on PET and Recurrence Patterns After Curative Surgical Resection in Patients with Advanced Gastric Cancer

Authors
 Jeong Won Lee ; Kwanhyeong Jo ; Mijin Yun ; Jong Doo Lee ; Sung Hoon Noh ; Arthur Cho 
Citation
 Journal of Nuclear Medicine, Vol.56(10) : 1494~1500, 2015 
Journal Title
 Journal of Nuclear Medicine 
ISSN
 0161-5505 
Issue Date
2015
Abstract
This study evaluated the predictive value of (18)F-FDG PET for distant metastasis-free survival and peritoneal recurrence-free survival as well as recurrence-free survival and overall survival after curative surgical resection in patients with advanced gastric cancer (AGC). METHODS: Two hundred seventy-nine patients with AGC who underwent preoperative (18)F-FDG PET and subsequent curative surgical resection were included. The tumor-to-normal liver uptake ratio (TLR) of cancer lesions was measured, and the prognostic significance of TLR and tumor factors for distant metastasis-free survival, peritoneal recurrence-free survival, recurrence-free survival, and overall survival was assessed. RESULTS: The 5-y recurrence-free survival, peritoneal recurrence-free survival, distant metastasis-free survival, and overall survival rates were 46.9%, 68.5%, 76.0%, and 58.1%, respectively. Depth of tumor invasion, lymph node metastasis, lymphovascular invasion, and TLR were independent prognostic factors for both recurrence-free survival and overall survival (P < 0.05). For distant metastasis-free survival, lymphovascular invasion and TLR were independent risk factors (P < 0.05). In patients with a TLR of 2.0 or less, the 5-y distant metastasis-free survival rate was 95.5%; in patients with a TLR greater than 2.0, the 5-y distant metastasis-free survival rate was 68.8%. For peritoneal recurrence-free survival, TLR showed no statistical significance (P = 0.7) whereas pT stage, lymph node metastasis, Lauren classification, and Bormann type were independent prognostic factors (P < 0.05). CONCLUSION: (18)F-FDG uptake of AGC is an independent prognostic factor for distant metastasis-free survival, recurrence-free survival, and overall survival. The possibility of distant metastasis during follow-up should be considered in patients with high (18)F-FDG uptake.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/141511
DOI
10.2967/jnumed.115.160580
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Nuclear Medicine
1. 연구논문 > 1. College of Medicine > Dept. of Surgery
Yonsei Authors
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Link
 http://jnm.snmjournals.org/content/56/10/1494.long
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