Correlation Study on Lung Volume, Diaphragmatic Motion and Infrared Module Motion in Patients with Pulmonary Tumors Under 4DCT

DOI: https://doi.org/10.62517/jmhs.202605112

Author(s)

Zujie Tang1, Zhuoxin Yan2, Yu Qin1, Liyan Liu1, Yiyuan Fang1,*

Affiliation(s)

1The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China 2The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China *Corresponding Author

Abstract

This study aimed to systematically analyze the correlation between lung volume, diaphragmatic motion range and motion amplitude of 4DCT infrared module in patients with pulmonary tumors, as well as parameter differences among different tumor stages. A total of 50 pathologically confirmed pulmonary tumor patients were retrospectively enrolled, and their 4DCT scan data from January 2020 to December 2023 were collected. Correlation analysis and inter-group comparison were used to analyze the parameter correlations and staging differences. The results showed that lung volume was significantly positively correlated with diaphragmatic motion range (r=0.72), lung volume with infrared module motion amplitude (r=0.65), and diaphragmatic motion range with infrared module motion amplitude (r=0.81) (all P<0.001). All three parameters gradually decreased with the progression of tumor stage, with the most obvious decrease from stage II to III. Conclusion: 4DCT can quantitatively evaluate respiration-related parameters in patients with pulmonary tumors, and their correlations and staging differences provide important basis for individualized diagnosis and treatment.

Keywords

Pulmonary Tumor; 4DCT; Lung Volume; Diaphragmatic Motion Range; Motion Amplitude of Infrared Module

References

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