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[Semi-quantitative study of structural abnormalities and changes of oxygenation function using CT in patients with
Jie Zhang1, Hongzhi Yu, Qi Wu2
1Department of Radiology, Haihe Clinical College of Tianjin Medical University, Tianjin 300350, China.
Computed tomography (CT) semi-quantitative scoring effectively quantifies lung structural abnormalities in post primary tuberculosis, correlating with impaired oxygenation. Bronchial lesions significantly impact disease progression and oxygenation function.
Area of Science:
- Radiology
- Pulmonology
- Infectious Diseases
Background:
- Post primary tuberculosis (TB) can lead to significant structural lung abnormalities.
- Assessing the impact of these abnormalities on pulmonary function, specifically oxygenation, is crucial for patient management.
Purpose of the Study:
- To investigate the relationship between CT-based semi-quantitative scoring of structural abnormalities and oxygenation function in patients with post primary TB.
- To evaluate the utility of CT scoring in reflecting changes in blood gas analysis.
Main Methods:
- 110 patients with post primary TB underwent CT scans and arterial blood gas analysis.
- Lesions were evaluated using a retrospective semi-quantitative scoring system.
- Correlation between CT scores and PaO2/FiO2 ratios was analyzed.
Main Results:
- Overall lung lesion scores and scores for nodules, tree-in-bud pattern, consolidation, bronchial lesions, and cavities correlated with PaO2/FiO2.
- Bronchial lesions, consolidation, and cavities had significantly higher scores in patients with impaired oxygenation (PaO2/FiO2 < 300 mmHg).
- Nodules, tree-in-bud pattern, and bronchial wall thickening were common findings.
Conclusions:
- Semi-quantitative CT scoring is a valuable tool for quantifying lung structural changes in post primary TB.
- CT scoring sensitively reflects impaired oxygenation, with bronchial lesions playing a key role.
- This method aids in understanding the functional impact of TB-related lung damage.
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