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Implementation of tube current modulation in CT dose computations with voxel models.
In: Proceedings (World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany). Berlin: Springer, 2009. 329-332 (IFMBE Proceedings ; 25/III)
Automatic tube current modulation is meanwhile a standard procedure in modern CT devices to save radiation dose. The implementation of this method into Monte Carlo organ-dose calculations is described. A comparison of conversion coefficients obtained with and without tube current modulation is performed. A standard reliable procedure to compute conversion coefficients for any CT examination is to combine the pre-computed coefficients obtained in axial scans appropriately. The applicability of this procedure was validated for the case with tube current modulation, too.
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Publication type Article: Conference contribution
Keywords organ dose conversion coefficients - voxel models - computed tomography
Conference Title World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany
Proceedings Title Proceedings
Quellenangaben Volume: 25/III, Pages: 329-332
Series IFMBE Proceedings
Publishing Place Berlin
Institute(s) Institute of Radiation Protection (ISS)