Method for detecting damage to silicone implants and computed tomography device

摘要

A method is disclosed for detecting damage to silicone implants. In an embodiment, the method includes taking at least two computed tomography recordings at different X-ray spectra or different mono-energies of the X-ray radiation and reconstruction thereof. A data point is determined in a diagram for each voxel of interest, the X-ray attenuation values for different X-ray energies being plotted against one another; The data point, or another value for each voxel of interest determined from the X-ray attenuation values, is compared to known data points or values of body tissue and/or of silicone, and a note or warning is output if the data point or other value deviates from the known data points or values for body tissue by at least a first threshold value and/or in the event of simultaneous approximation to the known data point or value for silicone by less than a second threshold value.

主权项

1. A method for detecting damage to silicone implants in an object region of a human body using a computed tomography device, the method comprising:
taking at least two computed tomography recordings of the object region, each at different X-ray spectra or different mono-energies of the X-ray radiation; reconstructing the at least two computed tomography recordings to form 3D data sets which contain X-ray attenuation values or equivalent material densities in terms of a basic material decomposition of voxels of the object region; determining a data point in a diagram for each voxel of interest, the X-ray attenuation values for different X-ray energies being plotted against one another; comparing the data point, or another value for each voxel of interest determined from the X-ray attenuation values, with known data points or values of body tissue and known data points or values of silicone; determining if the data point or other value for each voxel of interest deviates from the known data points or values for body tissue by at least a first threshold value; determining if the data point or other value for each voxel of interest deviates from the known data point or value for silicone by less than a second threshold value; and outputting a warning if the data point or other value for each voxel of interest deviates from the known data points or values for body tissue by the first threshold value while the data point or other value for each voxel of interest simultaneously deviates from the known data points or values for silicone by less than the second threshold value.