Influence of a longitudinal motion on image quality with a 64-channel CT scanner
Physiologic motions can appear during a computed tomography (CT) exam. Even if some motions can be prevented, others are unavoidable. To tempt to correct the resulting artifacts, it is necessary to understand their apparition and their influence on the image quality. By using an anthropomorphic phan...
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| creator | Grosjean, Romain Guerra, RuMi Matias Sauer, Benoit Blum, Alain Hubert, Jacques Felblinger, Jacques |
| description | Physiologic motions can appear during a computed tomography (CT) exam. Even if some motions can be prevented, others are unavoidable. To tempt to correct the resulting artifacts, it is necessary to understand their apparition and their influence on the image quality. By using an anthropomorphic phantom and a dynamic platform, we have studied the influence of three different linear speeds on the quality of CT axial images. The results proved that the deformation, the detectability and the contrast of calcifications are of course dependent on the size and on the density of the calcification but also on the movement applied to them. The influence of the motion on the image quality depends on the studied object and cannot be predicted. |
| doi_str_mv | 10.1109/IEMBS.2007.4352941 |
| format | Conference Proceeding |
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| ispartof | 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007, Vol.2007, p.2924-2927 |
| issn | 1094-687X 1557-170X 1558-4615 |
| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Anthropomorphism Biological materials Calibration Computed tomography Degradation Humans Image quality Imaging phantoms Motion Motion measurement Phantoms, Imaging Radiology Spatial resolution Tomography, X-Ray Computed - methods |
| title | Influence of a longitudinal motion on image quality with a 64-channel CT scanner |
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