By Pim J. de Feyter, G. P. Gabriel Krestin
Updated to mirror the remarkable advances in cardiac computed tomography (CT) imaging, the second one version of the best-selling Computed Tomography of the Coronary Arteries presents cardiologists and radiologists with a pragmatic textual content that explains the elemental ideas and functions of CT.
Written by way of popular overseas specialists within the box, this available source in actual fact provides the basics of the hot expertise of 64-slice imaging by using top of the range illustrations, references, and tables.
- image post-processing
- coronary imaging for regular coronary arteries
- coronary pathology and coronary imaging
- coronary stenosis
- coronary plaque imaging and calcification
- chronic overall occlusion
- an evaluation of coronary stents
- coronary artery anomalies in adults
- coronary collaterals and skip grafts
- cardiac lots, intracardiac thrombi, and pericardial abnormalities
- great thoracic vessels
- noncardiac findings on CT calcium screening
- left ventricular function
- the way forward for cardiac CT imaging
- contrast-enhancement for coronary angiography
Read Online or Download Computed Tomography of the Coronary Arteries PDF
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Additional info for Computed Tomography of the Coronary Arteries
The thickness of the slice is important, because the X-ray beam passes only through the selected slice thickness, thereby eliminating superimposition and radiation scatter of adjacent structures which creates high quality images. In computerized imaging, pictures are composed of pixels. The region of interest is mathematically divided into voxels. In each voxel the signals are averaged and turned into a number, which eventually represents a certain 28 level on the gray scale. These numbers are used to create a picture consisting of pixels.
The number of detector rows does not affect the spatial resolution. Table advancement and pitch The pitch is the table advancement (increment) per rotation relative to the width of the collimated detectors (where n is the number of detectors): Pitch = table advancement per rotation n ¥ individual detector width To scan non-moving body sections the table advancement should be as high as possible while ensuring sufficient data acquisition. For non-gated scan protocols, the pitch usually varies between one and two.
The techniques were scored according to a range of variables: (1) Availability. The availability of post-processing techniques is inversely proportional to their computational complexity. All DICOM (Digital Imaging and Communication in Medicine) viewing software allows axial images to be scrolled, while for increasingly complex tasks, such as MPR, MIP, and VR, more sophisticated software and computer power are required. 10 Volume rendering: color attribution. In volume rendering the parameters attributed to an image are arbitrary.