ArticleJournal of thoracic disease2025
The branching patterns of bronchi and pulmonary arteries are associated with lingula division volume.
Article in Journal of thoracic disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Three-dimensional (3D) computed tomography (CT) bronchography and angiography is a powerful tool for analyzing pulmonary anatomy. We conducted a large-sample, single-center study using 3D CT to systematically and comprehensively describe the bronchial and vascular anatomical features of the lingula. Methods: After applying the study exclusion and inclusion criteria, a total of 4,862 participants who underwent thin-slice CT scans from January 2019 to June 2024 at the Department of Thoracic Surgery, Yichang Central People's Hospital were enrolled in this retrospective study. Data such as the clinical characteristics of blood vessels and bronchi were reviewed in this study. Results: The B4-B5 type was the most common anatomical pattern (4,692 cases, 96.5%, P<0.001). The B4-B5 type can be classified based on its position as follows: vertical (Type I) and horizontal (Type II). The incidence of Type I (91.13%) was significantly higher than that of Type II (8.87%) (P<0.001). The B4 diameter was significantly larger in Type I than Type II (4.39±0.81 Conclusions: This study systematic classification of lingular bronchial and arterial branching patterns into eight subtypes, and explored the relationship between these subtypes and lung segment volume. This was also the first study to report a positive correlation between pulmonary artery branching patterns, bronchi branching patterns, and lung volume. Our findings may facilitate the creation of simplified models for use in preoperative planning for segmentectomy.
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