Gastric Cancer

, Volume 12, Issue 1, pp 6–22

Imaging in assessing lymph node status in gastric cancer

  • Robert Michael Kwee
  • Thomas Christian Kwee
Review Article

DOI: 10.1007/s10120-008-0492-5

Cite this article as:
Kwee, R.M. & Kwee, T.C. Gastric Cancer (2009) 12: 6. doi:10.1007/s10120-008-0492-5

Abstract

Background

Accurate assessment of lymph node status is of crucial importance for appropriate treatment planning and determining prognosis in patients with gastric cancer. The aim of this study was to systematically review the current role of imaging in assessing lymph node (LN) status in gastric cancer.

Methods

A systematic literature search was performed in the PubMed/MEDLINE and Embase databases. The methodological quality and diagnostic performance of the included studies was assessed.

Results

Six abdominal ultrasonography (AUS) studies, 30 endoscopic ultrasonography (EUS) studies, 10 multidetectorrow computed tomography (MDCT) studies, 3 conventional magnetic resonance imaging (MRI) studies, 4 18F-fluoro-2-deoxyglucose positron emission tomography (FDG-PET) studies, and 1 FDG-PET/CT fusion study were included. In general, the included studies had moderate methodological quality. The sensitivity and specificity of AUS varied between 12.2% and 80.0% (median, 39.9%) and 56.3% and 100% (median, 81.8%). The sensitivity and specificity of EUS varied between 16.7% and 95.3% (median, 70.8%) and 48.4% and 100% (median, 84.6%). The sensitivity and specificity of MDCT varied between 62.5% and 91.9% (median, 80.0%) and 50.0% and 87.9% (median, 77.8%). The sensitivity and specificity of MRI varied between 54.6% and 85.3% (median, 68.8%) and 50.0% and 100% (median, 75.0%). The sensitivity and specificity of FDG-PET varied between 33.3% and 64.6% (median, 34.3%) and 85.7% and 97.0% (median, 93.2%). The sensitivity and specificity of the FDG-PET/CT fusion study were 54.7% and 92.2%. For all the imaging modalities, there were no significant differences between the mean sensitivities and specificities of high- and low-quality studies.

Conclusion

AUS, EUS, MDCT, conventional MRI, and FDG-PET cannot reliably be used to confirm or exclude the presence of LN metastasis. The performance of highresolution PET/CT fusion and functional MRI techniques still has to be determined.

Key words

Gastric cancerLymph node metastasisImagingStagingSystematic review
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Copyright information

© The International Gastric Cancer Association and The Japanese Gastric Cancer Association 2009

Authors and Affiliations

  • Robert Michael Kwee
    • 1
  • Thomas Christian Kwee
    • 2
  1. 1.Department of RadiologyMaastricht University Medical CenterMaastrichtThe Netherlands
  2. 2.Department of RadiologyUniversity Medical Center UtrechtUtrechtThe Netherlands