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High resolution volume imaging of airways and lung parenchyma with multislice CT

Department of Diagnostic Imaging, Northern General Hospital, Sheffield Teaching Hospitals NHS Trust, Herries Road, Sheffield S5 7AU, UK

View larger version (100K): [in a new window]   Figure 1. (a) Collapsed bronchiectatic left lower lobe is clearly depicted with paddlewheel image reconstruction. Normal left lower lobe bronchus (arrow) is demonstrated, excluding a proximal obstructive lesion. (b) High resolution volume imaging of a patient with bronchiectasis of the left lower lobe. The dilated bronchi are clearly demonstrated in a coronal image of the left lung.

View larger version (203K): [in a new window]   Figure 2. (a) Benign stricture of the trachea (arrow) complicating endotracheal intubation is shown clearly in a three-dimensional (3D) image (solid cast). (b) Stricture of the distal part of the right main bronchus and the origin of the bronchus intermedius (arrow) post lung transplantation is shown clearly with 3D imaging (solid cast). (c–e) Displacement of the trachea to the right (arrow) by a large goitre is shown in a 3D image of the trachea (virtual bronchography). (c). The impression of the aorta (X) on the left lung is also shown. Large goitre of the right lobe of the thyroid gland (asterisk) is shown in coronal (d) and sagittal (e) imaging.

View larger version (144K): [in a new window]   Figure 3. (a) Lipoid pneumonia of the lung causing diffuse shadowing in the lung fields shown in axial (a) and coronal (b) imaging, and sagittal imaging of right (c) and left (d) lung. Multiplanar reconstruction in such cases does not seem to offer important additional information compared with axial imaging.

View larger version (74K): [in a new window]   Figure 4. The distribution of emphysema in the right lung is clearly shown in (a) coronal and (b) sagittal imaging.

View larger version (114K): [in a new window]   Figure 5. Unexpected peripheral lung cancer (arrowhead) demonstrated by the screenogram in a patient with emphysema under assessment for volume reduction surgery. This lesion was not demonstrated by the sequential (1 mm at 10 mm intervals) high resolution CT axial imaging of the lungs.