Adaptive dose modulation during CT scanning
作者： Dietmar Hentschel , Heiko Wolf , Karl-Ernst Strauss , Stefan Popescu
DOI:
关键词: Attenuation 、 Physics 、 Projection (set theory) 、 Beam (structure) 、 Optics 、 Rotation 、 Modulation 、 Radiation dose 、 Dose level 、 Extrapolation
摘要: In a method for reducing radiation dose in an x-ray CT (computed tomography) system, maximum attenuation per projection is computed every or n th and the measured angular profile last half rotation of beam around subject stored, extrapolation conducted computing extrapolated next based on rotation, process setting level projection, profile. The can be modulated, with characteristics modulation being set controlled dependent
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