Pim J. de Feyter, G. P. Gabriel Krestin's Computed Tomography of the Coronary Arteries PDF

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 fundamental ideas and purposes of CT.

Written by way of well known foreign specialists within the box, this available source in actual fact offers the basics of the recent expertise of 64-slice imaging by utilizing top of the range illustrations, references, and tables.

Contents include:

  • 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 overview of coronary stents
  • coronary artery anomalies in adults
  • coronary collaterals and pass grafts
  • cardiac lots, intracardiac thrombi, and pericardial abnormalities
  • great thoracic vessels
  • noncardiac findings on CT calcium screening
  • left ventricular function
  • artefacts
  • the way forward for cardiac CT imaging
  • contrast-enhancement for coronary angiography

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Additional info for Computed Tomography of the Coronary Arteries

Sample text

In the second series a section of approximately 10 × 10 cm is reconstructed and magnified (d) and (e). In the third series only the proximal left anterior descending artery is reconstructed (f) and magnified (g). When the pixel size becomes smaller than the fundamental spatial resolution, no improvement of spatial resolution can be expected. 31 Slice thickness. 7 mm, each with a reconstruction overlap of approximately 50%. Pitch = 2 Pitch = 1 slab overlap results in unnecessary exposure to radiation.

Differentiation of tissues is based on the variation of attenuation of the respective tissues and can be divided in to a limited number of groups: air/lung, fat tissue, soft tissue, and bone/metal. A contrast medium can be helpful to further differentiate tissue, for example blood and vessel wall as used in CT coronary angiography, or infarcted myocardium from normally perfused myocardium. The ability to recognize detailed variation of attenuation and tissue composition depends on the spatial resolution and image noise, and is influenced by numerous factors mentioned in the previous sections.

The soft tissues with a range of attenuation between 0 HU and 180 HU (subcutaneous tissue, liver parenchyma, and myocardium) are assigned to the color red. The tissues with a range of attenuation between 110 and 370 HU (vessels) are assigned a yellow color. The tissues with attenuation above 220 HU (bones) are assigned to the color white. The color stripe in the middle of the image shows the progressive change of color along the scale of attenuation. This technique produces spectacular images but, so far, its clinical use is limited.

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