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Abstract
Multidetector-row computed tomography (MDCT) provides new opportunities and poses challenges for medical imaging to radiologists and physicians. Isotropic imaging (similar resolution in three dimensional directions) allows in-depth views of anatomy and disease. Ultra-fast scan enables whole-body volume imaging within a single breath hold and thus the reduction of contrast medium consumption. CT volume data sets can be used for three-dimensional visualization of the whole body, with which the detailed and comprehensive interpretation of thoracic anatomy and specific disease location and extent is plausible. Moreover, four-dimensional CT imaging can be possible and therefore, we can observe and quantify cardiopulmonary functions without invasive procedures. The author reviews briefly the application of MDCT for the thoracic imaging.
Figures and Tables
Figure 1
Comparison of multiplanar image reformatted from conventional CT and MDCT
(A) Coronal reformatted image from single spiral CT with 5mm thick axial image
(B) Coronal reformatted image from sixteen multidetector-row CT with 1.25mm thick axial image
Figure 2
Comparison of pixel and voxel. One pixel of axial CT has 0.5 × 0.5 mm size on XY plan. However Z axis length of this pixel on three dimensions is long to 10mm. This voxel shows unusually long hexahedron
Figure 6
Comprehensive interpretation of anatomy using multiplanar image
(A) Plain radiography shows calcified granuloma in right upper lung zone (arrow)
(B) Coronal reformatted image of MDCT shows similar view with (A) It shows calcified granuloma also and fibrotic bands in right upper lobe as an additional finding (arrows)
Figure 7
Pulmonary thromboembolism on multplanar CT angiography. Filling defect (arrow) in right inferior pulmonary artery is conspicuous within highly enhanced vascular structure
(A) Axial image (B) Coronal image (C) Sagital image
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