Abstract
Cardio-thoracic imaging with CT requires short exposure time for the acquisition of the axial slices and the corresponding dedicated scan and image reconstruction techniques to virtually freeze the cardiac motion and to avoid motion artifacts in the images. Scan and image reconstruction needs to be synchronized with the heart motion, e.g., by using information from the patient’s electro-cardiogram (ECG) that is recorded in parallel to the CT scan data acquisition.
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References
Achenbach S, Moshage W, Ropers D, Nössen J, Daniel WG (1998) Value of electron-beam computed tomography for the non-invasive detection of high-grade coronary artery stenoses and occlusions. N Engl J Med 339:1964–1971
Achenbach S, Giesler T, Ropers D, Ulzheimer S, Derlien H, Schulte C, Wenkel E, Moshage W, Bautz W, Daniel WG, Kalender WA, Baum U (2001) Contrast-enhanced, retrospectively electrocardiographically-gated, multislice spiral computed tomography. Circulation 103:2535–2538
d’Agostino AG, Remy-Jardin M, Khalil C, Delannoy-Deken V, Flohr T, Duhamel A, Remy J (2006) Low-dose ECG-gated 64-slices helical CT angiography of the chest: evaluation of image quality in 105 patients. Eur Radiol 16:2137–2146
Bahner ML, Böse J, Lutz A, Wallschläger H, Regn J, van Kaick G (1999) Retrospectively ECG-gated spiral CT of the heart and lung. Eur Radiol 9:106–109
Becker CR, Jakobs TF, Aydemir S, Becker A, Knez A, Schöpf UJ, BrĂ¼ning R, Haberl R, Reiser MF (2000a) Helical and single-slice conventional CT versus electron beam CT for the quantifi cation of coronary artery calcifi cation. AJR 174:543–547
Becker CR, Knez A, Ohnesorge B, Schoepf UJ, Reiser MF (2000b) Imaging of noncalcified coronary plaques using helical CT with retrospective ECG-gating. Am J Roentgenol 175:423–444
Bruder H, Stierstorfer K, Ohnesorge B, Schaller S, Flohr T (2001) Segmented cardiac volume reconstruction — A novel reconstruction scheme for multi-slice cardiac CT. The Sixth International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Pacific Grove, 161–164
Boyd DP, Lipton MJ (1982) Cardiac computed tomography. Proc IEEE 71:298–307
Cademartiri F, Mollet NR, Runza G, Baks T, Midiro M, Mc-Fadden EP, Flohr TG, Ohnesorge B, de Feyter PJ, Krestin GP (2006) Improving diagnostic accuracy of MDCT coronary angiography in patients with mild heart rhythm irregularities using ECG editing. AJR 186:634–638
Fischbach R (2004) Clinical evaluation of Kymogram-gated cardiac image reconstruction with 16-slice CT (abstract). Radiology 231(P)
Flohr T, Ohnesorge B (2001) Heart rate adaptive optimization of spatial and temporal resolution for ECG-gated multi-slice spiral CT of the heart. JCAT 25:907–923
Flohr T, Prokop M, Schöpf, Kopp A, Becker C, Schaller S, White R, Ohnesorge B (2002) A new ECG-gated multislice spiral CT scan and reconstruction technique with extended volume coverage for cardio-thoracic applications. Eur Radiol 12:1527–1532
Flohr T, Ohnesorge B, Bruder H, Stierstorfer K, Simon J, Suess C, Schaller S (2003) Image reconstruction and performance evaluation for ECG-gated spiral scanning with a 16-slice CT system. Med Phys 30:2650–2662
Flohr TG, McCollough CH, Bruder H, Petersilka M, Gruber K, SĂ¼ĂŸ C, Grasruck M, Stierstorfer K, Krauss B, Raupach R, Primak AN, KĂ¼ttner A, Achenbach S, Becker C, Kopp A, Ohnesorge BM (2006) First performance evaluation of a dual-source CT (DSCT) system. Eur Radiol 16:256–268
Grass M, Manzke R, Nielsen T, Koken P, Proksa R, Natanzon M, Shechter G (2003) Helical cardiac cone beam reconstruction using retrospective ECG gating. Phys Med Biol 48:3069–3084
Greuter MJW, Flohr T, van Ooijen PMA, Oudkerk M (2007) A model for temporal resolution of multidetector computed tomography of coronary arteries in relation to rotation time, heart rate and reconstruction algorithm. Eur Radiol 17:784–812
Hong C, Becker CR, Huber A, Schöpf UJ, Ohnesorge B, Knez A, BrĂ¼ning R, Reiser MF (2001) ECG-gated reconstructed multi-detector row CT coronary angiography: Effect of varying trigger delay on image quality. Radiology 220:712–717
Hsieh J, Londt J, Vass M, Li J, Tang X, Okerlund D (2006) Step-and-shoot data acquisition and reconstruction for cardiac X-ray computed tomography. Med Phys 33:4236–4248
Jakobs TF, Becker CR, Ohnesorge B, Flohr T, Suess C, Schoepf UJ, Reiser MF (2002) Multislice helical CT of the heart with retrospective ECG gating: reduction of radiation exposure by ECG-controlled tube current modulation. Eur Radiol 12:1081–1086
Johnson TR, Nikolaou K, Becker A, Leber AW, Rist C, Wintersperger BJ, Reiser MF, Becker CR (2007c) Dual-source CT for chest pain assessment. Eur Radiol Nov 22 [Epub ahead of print]
KachelrieĂŸ M, Kalender WA (1998) Electrocardiogram-correlated image reconstruction from subsecond spiral computed tomography scans of the heart. Med Phys 25:2417–2431
KachelrieĂŸ M, Ulzheimer S, Kalender WA (2000) Electrocardiogram-correlated image reconstruction from subsecond multi-row spiral CT scans of the heart. Med Phys 27:1881–1902
KachelrieĂŸ M, Sennst DA, Maxlmoser W, Kalender WA (2002) Kymogram detection and Kymogram-correlated image reconstruction from subsecond spiral computed tomography scans of the heart. Med Phys 29:1489–1503
Knez A, Becker CR, Leber A, Ohnesorge B, Becker A, White C, Haberl R, Reiser MF, Steinbeck G (2001) Usefulness of multislice spiral computed tomography angiography for determination of coronary artery stenoses. Am J Cardiol 88:1191–1194
Kopp AF, Schröder S, KĂ¼ttner A, Heuschmid M, Georg C, Ohnesorge B, Kuzo R, Claussen CD (2001) Coronary arteries: Retrospectively ECG-gated multi-detector row CT angiography with selective optimization of the reconstruction window. Radiology 22:683–688
Leschka S, Wildermuth S, Boehm T, Desbiolles L, Husmann L, Plass A, Koepfli P, Schepis T, Marincek B, Kaufmann PA, Alkadhi H (2006) Noninvasive coronary angiography with 64-section CT: effect of average heart rate and heart rate variability on image quality. Radiology 241:378–385
Matt D, Scheffel H, Leschka S, Flohr TG, Marincek B, Kaufmann PA, Alkadhi H (2007) Dual-source CT coronary angiography: image quality, mean heart rate, and heart rate variability. AJR Am J Roentgenol 189:567–573
Niemann K, Oudkerk M, Rensing BJ, van Ooijen P, Munne A, van Geuns RJ, de Feyter P (2001) Coronary angiography with multi-slice computed tomography. Lancet 357:599–603
Ohnesorge B, Flohr T, Schaller S, Klingenbeck-Regn K, Becker CR, Schöpf UJ, BrĂ¼ning R, Reiser MF (1999) Technische Grundlagen und Anwendungen der Mehrschicht CT. Radiologe 39:923–931
Ohnesorge B, Flohr T, Becker CR, Kopp AF, Knez A, Baum U, Klingenbeck-Regn K, Reiser MF (2000) Cardiac imaging by means of electrocardiographically gated multisection spiral CT: Initial experience. Radiology 217:564–571
Parker D (1982) Optimal short scan convolution reconstruction for fan-beam CT. Med Phys 9:254–257
Sato Y, Kanmatsuse K, Inoue F, Horie T, Kato M, Kusama J, Yoshimura A, Imazeki T, Furuhashi S, Takahashi M (2003) Noninvasive coronary artery imaging by multislice spiral computed tomography — A novel approach for a retrospectively ECG-gated reconstruction technique. Circ J 67:107–111
Stierstorfer K, Rauscher A, Boese J, Bruder H, Schaller S, Flohr T (2004) Weighted FBP — a simple approximate 3D FBP algorithm for multislice spiral CT with good dose usage for arbitrary pitch. Phys Med Biol 49:2209–2218
Taguchi K, Anno H (2000) High temporal resolution for multi-slice helical computed tomography. Med Phys 27:861–872
Wintersperger BJ, Nikolaou K, von Ziegler F, Johnson T, Rist C, Leber A, Flohr T, Knez A, Reiser MF, Becker CR (2006) Image quality, motion artifacts, and reconstruction timing of 64-slice coronary computed tomography angiography with 0.33-second rotation speed. Invest Radiol 41:436–442
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Flohr, T., Ohnesorge, B. (2009). Cardiac Gating. In: RĂ©my-Jardin, M., RĂ©my, J. (eds) Integrated Cardiothoracic Imaging with MDCT. Medical Radiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72387-5_2
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DOI: https://doi.org/10.1007/978-3-540-72387-5_2
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