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- W2332268904 abstract "Purpose The objective of this study was to correlate the association between mutated KRAS and wild-type colorectal cancer (CRC) by using various 18F-FDG PET–related parameters. Methods One hundred twenty-one CRC patients who had undergone preoperative PET/CT were included in this study. Several PET/CT-related parameters, including SUVmax and various thresholds of metabolic tumor volume, total lesion glycolysis, and PET/CT-based tumor width, were measured. Tumor- and PET/CT-related parameters were correlated with genomic expression between KRAS mutant and wild-type groups, using a Mann-Whitney U test and logistic regression analysis. Results Colorectal cancer tumors with a mutated KRAS exhibited higher SUVmax and an increased accumulation of FDG among several threshold methods. Multivariate analysis showed that SUVmax and using a 40% threshold level for maximal uptake of TW (TW40%) were the 2 predictors of KRAS mutations. The odds ratio was 1.23 for SUVmax (P = 0.02; 95% confidence interval, 1.01–1.52) and 1.15 for TW40% (P = 0.02; 95% confidence interval, 1.02–1.30). The accuracy of SUVmax for predicting mutated KRAS was higher in patients with colon or sigmoid colon cancers, whereas it was TW40% in those with rectal cancers. Conclusions SUVmax and TW40% were associated in CRC with KRAS mutations. PET/CT parameters can supplement genomic analysis to determine KRAS expression in CRC." @default.
- W2332268904 created "2016-06-24" @default.
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- W2332268904 date "2014-08-01" @default.
- W2332268904 modified "2023-10-01" @default.
- W2332268904 title "Correlation Between PET/CT Parameters and KRAS Expression in Colorectal Cancer" @default.
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- W2332268904 doi "https://doi.org/10.1097/rlu.0000000000000481" @default.
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