Association between carcinoembryonic antigen levels and the applied value of 18F‑fluorodeoxyglucose positron emission tomography/computed tomography in post‑operative recurrent and metastatic colorectal cancer

  • Authors:
    • Wenzhe Bu
    • Ran Wei
    • Jinpeng Li
    • Lijun Wang
    • Congcong Shi
    • Jinlong Song
    • Shuangshuang Ma
    • Hua Chen
    • Ning Cong
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  • Published online on: September 11, 2014     https://doi.org/10.3892/ol.2014.2523
  • Pages: 2649-2653
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Abstract

Positron emission tomography (PET) using 18F‑fluorodeoxyglucose has been widely used for analyzing cellular metabolism. The present study aimed to evaluate the association between the diagnostic value of PET/computed tomography (CT) in patients with post‑operative recurrent and metastatic colorectal cancer (CRC), and the different levels of carcinoembryonic antigen (CEA). A total of 105 suspected recurrent and metastatic CRC patients (67 males and 38 females; mean age, 48.5 years) were included in this retrospective study. All the patients underwent PET/CT examination. The differences in the PET/CT diagnostic values of CEA‑positive and ‑negative patients with recurrent CRC following surgery were retrospectively analyzed and compared. Among the 105 CRC patients, 87 exhibited recurrence and metastasis, as confirmed by histopathological diagnosis or clinical follow‑up data. By contrast, the PET/CT examination results revealed that 85 cases were true positives (a false positive foci was diagnosed in one of the patients), 18 were true negatives and 2 were false negatives. Correspondingly, the sensitivity and degree of accuracy were 97.7 and 97.1%, respectively. The detection rates of PET/CT for the recurrence and metastases were 85.3% in the CEA‑positive group and 75.7% in the CEA‑negative group. No significant differences were observed between the two groups. Overall, CEA levels do not help improve the detection rate of PET/CT in the recurrence and metastasis of CRC. PET/CT imaging has a high sensitivity and degree of accuracy in detecting recurrence and metastasis following CRC surgery. Therefore, this method is ideal for monitoring relapsed and metastatic foci of post‑operative colon cancer cases.
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December-2014
Volume 8 Issue 6

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Bu W, Wei R, Li J, Wang L, Shi C, Song J, Ma S, Chen H and Cong N: Association between carcinoembryonic antigen levels and the applied value of 18F‑fluorodeoxyglucose positron emission tomography/computed tomography in post‑operative recurrent and metastatic colorectal cancer. Oncol Lett 8: 2649-2653, 2014.
APA
Bu, W., Wei, R., Li, J., Wang, L., Shi, C., Song, J. ... Cong, N. (2014). Association between carcinoembryonic antigen levels and the applied value of 18F‑fluorodeoxyglucose positron emission tomography/computed tomography in post‑operative recurrent and metastatic colorectal cancer. Oncology Letters, 8, 2649-2653. https://doi.org/10.3892/ol.2014.2523
MLA
Bu, W., Wei, R., Li, J., Wang, L., Shi, C., Song, J., Ma, S., Chen, H., Cong, N."Association between carcinoembryonic antigen levels and the applied value of 18F‑fluorodeoxyglucose positron emission tomography/computed tomography in post‑operative recurrent and metastatic colorectal cancer". Oncology Letters 8.6 (2014): 2649-2653.
Chicago
Bu, W., Wei, R., Li, J., Wang, L., Shi, C., Song, J., Ma, S., Chen, H., Cong, N."Association between carcinoembryonic antigen levels and the applied value of 18F‑fluorodeoxyglucose positron emission tomography/computed tomography in post‑operative recurrent and metastatic colorectal cancer". Oncology Letters 8, no. 6 (2014): 2649-2653. https://doi.org/10.3892/ol.2014.2523