State-of-the-art airway imaging with CT: Part 3
2006
Abstract: A significant advance in CT imaging is the use of 3-dimensional (3D) reconstruction techniques. A 3D reconstruction, for example, permits a volumetric evaluation of the contours of the airways and displays areas of stricture, or narrowing, more effectively than do routine axial images. External 3D rendering, also called CT bronchography, helps reveal complex airway abnormalities and improves the detection of subtle airway stenoses. Although it is primarily an investigational tool, internal 3D rendering (virtual bronchoscopy) has several potential applications, including assessing airway stenoses, guiding transbronchial biopsy procedures, and screening for lung cancer. Multiplanar reformation imaging methods can aid in the assessment of airway stenoses, airway stents, tracheomalacia, and extrinsic airway compression. A review of multiplanar images can also aid in the planning of stent placement or surgery. (J Respir Dis. 2006;27(8):348-352)
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