By Thomas Flohr PhD, Bernd Ohnesorge PhD (auth.), Martine Rémy-Jardin MD, PhD, Jacques Rémy MD (eds.)
The improvement of speedy scanning innovations and ultrahigh temporal answer, which 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 publication, written via well-known specialists within the box, addresses the aptitude price of such imaging. the 1st and moment components talk about the technological history 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 booklet, examines intimately a number of the medical functions of built-in cardiothoracic imaging, together with cardiac problems of thoracic issues, thoracic outcomes of cardiac illnesses, ambiguous symptomatology reminiscent of chest ache and hemoptysis, asymptomatic cardiac illnesses, pericardial affliction, and lung perfusion assessment. A significant goal of the booklet 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
Radiology 212:615–636 Remy-Jardin M, Remy J, Deschildre F et al. (1996) Diagnosis of pulmonary embolism with spiral CT: comparison with pulmonary angiography and scintigraphy. Radiology 200:699–706 Remy-Jardin J, Tillie-Leblond I, Szapiro D et al. (2002) CT angiography of pulmonary embolism in patents with underlying respiratory disease: impact of multislice CT on image quality and negative predictive value. Eur Radiol 12:1971–1978 Ritman E, Kinsey J, Robb R, Gilbert B, Harris L, Wood E (1980) Three-dimensional imaging of heart, lungs, and circulation.
By using appropriate data weighting, the quarter-scan segments complement to a half-scan segment. For ECG-gated spiral/helical CT, both single-segment and multi-segment reconstruction have been introduced into clinical practice (Kachelrieß et al. 2000; Taguchi and Anno 2000; Flohr and Ohnesorge 2001). In a single-segment approach, each image is reconstructed from a half-scan data segment that is acquired in one heart period (this situation is illustrated in Fig. 7). 33 s rotation time). 8. Note that in this case each image is reconstructed from data subsegments with temporal gaps in between.
At a time Tdel after the R-peak) is split into two 90° data segments (indicated green and orange) that are acquired by both measurement systems simultaneously at the same anatomical level. A scanner of this type provides temporal resolution equivalent to a quarter of the gantry rotation time, independent of the patient’s heart rate beam geometry. With 3D back-projection, a 3D image volume is obtained for each axial scan, and images at arbitrary z-positions zima within this volume can be generated by z-reformation (Stierstorfer et al.