CT-based definition of thoracic lymph node stations: An atlas from the University of Michigan

Olivier Chapet, Feng Ming Kong, Leslie E. Quint, Andrew C. Chang, Randall K. Ten Haken, Avraham Eisbruch, James A. Hayman

Research output: Contribution to journalArticlepeer-review

121 Scopus citations


Purpose: Accurate delineation of the mediastinal and hilar lymph node regions is essential for a reproducible definition of target volumes used in conformal irradiation of non-small-cell lung cancer. The goal of this work was to generate a consensus to delineate these nodal regions based on definitions from the American Joint Committee on Cancer. Methods and Materials: A dedicated thoracic radiologist, thoracic surgeon, medical physicist, and three radiation oncologists were gathered to generate a three-dimensional radiologic description for the mediastinal and hilar nodal regions on axial CT scans. This paper proposes an atlas of most of the lymph node stations described by Mountain and Dresler. Results: The CT boundaries of lymph node stations 1-2, 3, 4, 5, 6, 7, 8, 10-11 were defined on axial CT, along with image illustrations. Conclusion: These CT-based illustrative definitions will provide guidelines for clinical practice and studies evaluating incidental radiation in radiotherapy. Studies are ongoing at the University of Michigan to measure quantitatively the incidental nodal radiation received by patients with non-small-cell lung cancer.

Original languageEnglish (US)
Pages (from-to)170-178
Number of pages9
JournalInternational Journal of Radiation Oncology Biology Physics
Issue number1
StatePublished - Sep 1 2005


  • CT scan
  • Delineation
  • Lung
  • Nodes
  • Radiotherapy
  • Reproducibility

ASJC Scopus subject areas

  • Radiation
  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Cancer Research


Dive into the research topics of 'CT-based definition of thoracic lymph node stations: An atlas from the University of Michigan'. Together they form a unique fingerprint.

Cite this