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Koyama, H., Ohno, Y., Yamazaki, Y., Onishi, Y., Takenaka, D., Yoshikawa, T., Nishio, M., Matsumoto, S., Murase, K., Nishimura, Y. and Sugimura, K. (2012) Quantitative Bronchial Luminal Volumetric Assessment of Pulmonary Function Loss by Thin-Section MDCT in Pulmonary Emphysema Patients. European Journal of Radiology, 81, 384-388.
https://doi.org/10.1016/j.ejrad.2010.12.042

has been cited by the following article:

• TITLE: Tracheal Stenosis Caused by Thoracic Malignancy: Correlation between CT-Based Tracheal Measurement and Spirometric Values before and after Tracheal Stenting

  AUTHORS: Shinya Azagami, Tsuneo Yamashiro, Hiroshi Handa, Takeo Inoue, Shin Matsuoka, Teruomi Miyazawa, Masamichi Mineshita

  KEYWORDS: Trachea, Lung Cancer, Tracheal Stent, Computed Tomography, Bronchoscopy

  JOURNAL NAME: Open Journal of Medical Imaging, Vol.7 No.3, August 11, 2017

  ABSTRACT: Background: The correlation between computed tomography (CT)-based tracheal size and spirometry values is unknown in patients with tracheal stenosis by thoracic malignancy, which is often treated by tracheal stenting. Objectives: To evaluate the correlation between the tracheal cross-sectional area (CSA) and spirometric values before and after tracheal stenting, and to confirm that greater improvement in tracheal CSA leads to a larger improvement in spirometry values. Methods: A total of 32 patients with malignant tracheal stenosis underwent tracheal stenting. Before (n = 32) and after (n = 27) treatment, patients underwent chest CT, measuring mean and minimum tracheal CSA values, and spirometry. The correlation between tracheal CSA and each spirometric value was evaluated using Spearman rank correlation analysis. Differences in the pre- and posttreatment tracheal CSA and spirometric values were evaluated using the Wilcoxon matched-pairs test. Results: Significant improvement in the minimum tracheal CSA and in spirometric values was observed after stenting (P P P Conclusions: The tracheal size measured on chest CT correlates with patients’ spirometric values, particularly at the prestenting examination, in patients with malignant tracheal stenosis. The increase in the minimum tracheal CSA after stenting on CT is a predictor for improved spirometric values, which is first demonstrated by this study.