Abstract: A system and method reducing metal-induced imaging artifacts in MRI includes acquiring an MRI image of a biological object including a metal part, representing the object in an image domain, identifying or defining, within the MRI image, a Region of Interest including a metal-induced artifact from the metal part, applying, at least to the ROI, a wave-shaped transformation from image domain into wave-like domain. The wave-like transformation configured for breaking down spatial information in the ROI into oscillations characterized by components, and resulting in transformed image encoding information about the artifact, filtering each transformed image encoding information about the artifact, the filtering configured for removing artifact information from the transformed image, resulting in a filtered transformed image, applying, to the filtered transformed image, an inverse wave-like transformation from wave-like into image domain, resulting into a filtered image, and outputting the filtered image.

Abstract: A screening system (10) comprising at least one first substantially annular screen support (11) and a second substantially annular screen support (12); at least one pressure rod (14), which braces the screen supports (11, 12) with each other in such a manner that a compressive stress is produced between the screen supports (11, 12); at least one substantially cylindrical outer screen surface (13), which is clamped between the screen supports (11, 12); and at least one resonator (15) for the introduction of ultrasonic vibrations directly into the screen surface (13). The resonator (15) may be fastened to the screen surface (13) and essentially runs from the first screen support (11) to the second screen support (12). An eddy-current screening machine is also disclosed.

Abstract: The invention relates to, inter alia, a screening system (10), comprising: at least one first substantially annular screen support (11) and a second substantially annular screen support (12); at least one pressure rod (14), which braces the screen supports (11, 12) with each other in such a manner that a compressive stress is produced between the screen supports (11, 12); at least one substantially cylindrical outer screen surface (13), which is clamped between the screen supports (11, 12); and at least one resonator (15) for the introduction of ultrasonic vibrations directly into the screen surface (13). According to a first embodiment of the invention, the resonator (15) is fastened to the screen surface (13) and essentially runs from the first screen support (11) to the second screen support (12). The invention further relates to an eddy-current screening machine and to the use of a screening system (10) or of an eddy-current screening machine.