By Pim J. de Feyter, G. P. Gabriel Krestin
Updated to mirror the outstanding advances in cardiac computed tomography (CT) imaging, the second one version of the best-selling Computed Tomography of the Coronary Arteries offers cardiologists and radiologists with a pragmatic textual content that explains the elemental ideas and purposes of CT.
Written via popular overseas specialists within the box, this obtainable source basically provides the basics of the recent expertise of 64-slice imaging by utilizing 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 evaluate of coronary stents
- coronary artery anomalies in adults
- coronary collaterals and skip grafts
- cardiac plenty, 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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Extra info for Computed Tomography of the Coronary Arteries
5 Curved multiplanar reconstructions are generated by means of flat planes that cut the volume with a defined spatial orientation. When the cut plane is not flat but instead is curved, the result is a curved multiplanar reconstruction (a). The main difference with conventional multiplanar reconstructions is that the resulting image is a flattened representation of the curved plane (b). In this image the geometric relationships are less consistent. Typically, SSD uses only 10% of the available volume data and is now replaced by threedimensional volume rendering which uses 100% of the available volume data.
Then the resulting image is projected into one plane. From two orthogonal planes the observer can have a quick overview of the vessel anatomy and abnormalities. 21 Orthogonal views for the coronary arteries. When abnormalities are detected in the lumen or in the wall of coronary arteries, the observer can always create a plane orthogonal to the direction of the vessel. This view, which is commonly used in intravascular ultrasound, allows the configuration of the disease along the vessel to be seen.
It is responsible for the grainy appearance of CT scans or other imaging modalities. Image noise negatively affects the detailed evaluation of morphology and differentiation of tissues that are so important in coronary imaging. The amount of noise is influenced by the number of measurements per image element (voxel). 2 Spatial resolution and voxel size In-plane (xy) Spatial resolution Voxel size Focal spot size Field of view Tube–detector distance Matrix size Detector size Projections per rotation Field of view Matrix size Filtering Through-plane (z) Detector width Reconstruction increment Pitch Reconstructed slice thickness photons are collected per detector element per measurement, as a result of lower tube output, smaller detectors, faster rotation, or obese patients, image noise will increase.