By Martine Rémy-Jardin, Jacques Remy, Albert L. Baert
The improvement of quick scanning ideas and ultrahigh temporal solution, that are hired for either ECG-gated and nongated examinations of the chest, has made built-in cardiothoracic imaging a truth. This well timed, well-illustrated e-book, written via well-known specialists within the box, addresses the varied components of this topic. the 1st and moment components speak about the technological heritage and the cardiac and coronary artery anatomy and body structure, whereas the 3rd half examines heart–lung physiological and healing interactions. The fourth half, which kinds the most physique of the publication, examines intimately many of the medical functions of built-in cardiothoracic imaging, together with cardiac issues of thoracic problems, thoracic outcomes of cardiac illnesses, ambiguous symptomatology, and asymptomatic cardiac illnesses. A central goal of the publication is to illustrate that normal radiologists can perform screening for cardiac and coronary artery lesions in at-risk populations scanned due to breathing symptoms.
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Extra info for Integrated Cardiothoracic Imaging with MDCT
9 times the reconstruction slice width can be resolved in the longitudinal (z-) direction. Depending on the orientation of the MPR, the relative inﬂuence of in-plane and through-plane (z-axis) resolution varies, and so does the resulting MPR resolution, in particular for non-isotropic image data. 6 mm in cardiothoracic examinations, it is obvious that one should reconstruct the axial source images with sub-millimeter slice width to optimize MPR image quality. 6 mm (Flohr et al. 2004, 2005). The resolution of MPRs is then homogeneous irrespective of the orientation of the MPR image planes.
However, the accuracy and consistency of the signal for reproducible detection of equivalent phases in consecutive cardiac cycles are limited. A more recent approach, the so-called Kymogram algorithm (Kachelrieß et al. 2002), uses the variation of the center of mass from projection to projection as a measure for cardiac motion. The authors reported that peaks of this so-called Kymogram function often correlate with the positions of the R-waves in the corresponding ECGs, and that Kymogram gated image reconstruction can produce results comparable to ECG-gated image reconstruction.
Phys Med Biol 49:2209–2218 Taguchi K, Anno H (2000) High temporal resolution for multi-slice helical computed tomography. 33-second rotation speed. 1 Introduction Image postprocessing is the use of imaging techniques either to derive additional information from the original axial images of a CT scan or to hide unwanted information that distracts from the clinical ﬁ ndings. The basis for image postprocessing is a three-dimensional image volume, which in most cases consists of a stack of individual axial images.