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KMID : 1149020210230010029
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Journal of Korean Society of Computed Tomographic Technology
2021 Volume.23 No. 1 p.29 ~ p.36
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Quantitative Assessment of Changes in Lung volume of Patients with Interstitial Lung Disease between Inspiration and Expiration
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Lee Jae-Min
Lee Ki-Baek
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Abstract
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HRCT has been used to diagnose the interstitial lung disease and various lung diseases. This is performed with various comparison based on functional changes (inspiration vs expiration) and structural changes (supine position vs prone position) to evaluate the patient's lungs in detail. The purpose of our study figured out how the lung sizes of patients change quantitatively between inspiration and expiration. According to the degree of ILD disease, a total of 126 patients were retrospectively analyzed. For quantitative analysis, the volumes were measured based on the threshold value using Image J. All results according to breathing were shown in the order of inspiration and expiration as follows respectively: In the case of patients in mild state; 2,177±393.8 mm vs 1,497.1±425.1 mm, In the case of severe patients; 1,895.5±397.4 mm vs. 1,333.2±439.1 mm. The HRCT showed that the size of the lungs was high in both mild and severe patients at inspiration state. The difference in quantified values of inspiration minus expiration between the mild and severe groups showed a difference between 50 and 70 in the left and right lungs, and about 120 in overall. This values between inspiration, expiration, inspiration minus exhalation are thought to be helpful through quantified values in the diagnosis of ILD disease.
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KEYWORD
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interstitial lung disease, lung size, inspiration, expiration, quantitative assessment
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