Abstract
Modern methods of radiological diagnostics allow to visualize in life the structural and topographic peculiarities of the structure of the human body, signifi cantly expanding the range of individual anatomical variability of its individual parts and organs. Detailed study of tracheal bifurcation and structure and topography of the main bronchi by in vivo imaging using computed tomography and magnetic resonance imaging attracts the attention of researchers, as it allows to identify and describe variation series and extreme forms of individual norms of the studied structures. The aim. Elucidation of possible variants of tracheal bifurcation and topography of the main bronchi in individuals of mature age according to magnetic resonance imaging. In the course of the work, an analysis of 18 series of anonymized magnetic resonance computed tomography of the thoracic cavity of the individuals of mature age, performed on a Siemens Avanto 1.5T, followed by processing the results with the MicroDicom operating program in 3D-COR mode. In the study of tomograms, it was determined the magnitude of the bifurcation angle of the trachea and the angles of branching of the right and left main bronchi. In the processed randomized sample, the value of the bifurcation angle of the trachea was 79±2.16°. The angle of branching of the left main bronchus was 133.14±3.52 °, and the right main bronchus – 147.72±3.39°. With the general tendency to the predominance of the right main bronchus, the analysis of a series of tomograms showed that only in 13 people (72.2%) right main bronchus was an extension of the trachea and the angle of its branching was greater than the left main bronchial angle. In 3 persons (16.7%) the values of the angles of branching of the right and left main bronchi were almost the same, and in 2 persons (11.1%) the angle of branching of the left main bronchus from the trachea was greater than the angle of branching of the right main bronchus. Identifi ed variants of bifurcation of the trachea and angles of branching of the main bronchi can be considered as variants of the individual anatomical norm of this area.
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