Surgery Today

, Volume 42, Issue 10, pp 934–939

Prediction of true-negative lymph node metastasis in clinical IA non-small cell lung cancer by measuring standardized uptake values on positron emission tomography

  • Tomoyoshi Takenaka
  • Tokujiro Yano
  • Yosuke Morodomi
  • Kensaku Ito
  • Naoko Miura
  • Daigo Kawano
  • Fumihiro Shoji
  • Shingo Baba
  • Koichiro Abe
  • Hiroshi Honda
  • Yoshihiko Maehara
Original Article

DOI: 10.1007/s00595-012-0277-7

Cite this article as:
Takenaka, T., Yano, T., Morodomi, Y. et al. Surg Today (2012) 42: 934. doi:10.1007/s00595-012-0277-7

Abstract

Purpose

We developed a method for predicting true-negative lymph node metastases in clinical IA non-small lung cancer (NSCLC) by the combined evaluation of computed tomography (CT), 2-[18F]-fluoro-2-deoxy-d-glucose positron emission tomography (FDG-PET) findings and the maximum standardized uptake value (SUVmax) of primary tumors.

Methods

The subjects of this study were 94 patients with clinical stage IA NSCLC who underwent both preoperative CT and FDG-PET. We analyzed the relationship between the SUVmax of primary tumors and various clinicopathological factors to find the best method available for assessing true-negative lymph node metastasis.

Results

The pathological stages were IA (n = 80), IB (n = 4), IIA (n = 5), IIIA (n = 4), and IV (n = 1). Pathologic lymph node metastasis was recognized in nine patients and the SUVmax of these tumors ranged from 3.3 to 20.3. A SUVmax of 3.0 was defined as the cut-off point and patients were dichotomized according to this point. Tumors with SUVmax of 3.0 or less were associated with a significantly lower incidence of pleural and vascular invasion and were characterized by the degree of differentiation.

Conclusion

The SUVmax of primary tumors reflects the grade of malignancy; therefore, the combined evaluation of FDG-PET/CT findings with the SUVmax of primary tumors may help predict lymph node metastasis negativity.

Keywords

FDG-PETNon-small cell lung cancerClinical IA

Abbreviations

NSCLC

Non-small cell lung cancer

FDG-PET

2-[18F]-Fluoro-2-deoxy-d-glucose positron emission tomography

Copyright information

© Springer 2012

Authors and Affiliations

  • Tomoyoshi Takenaka
    • 1
  • Tokujiro Yano
    • 1
  • Yosuke Morodomi
    • 1
  • Kensaku Ito
    • 1
  • Naoko Miura
    • 1
  • Daigo Kawano
    • 1
  • Fumihiro Shoji
    • 1
  • Shingo Baba
    • 2
  • Koichiro Abe
    • 2
  • Hiroshi Honda
    • 2
  • Yoshihiko Maehara
    • 1
  1. 1.Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
  2. 2.Department of Clinical Radiology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan