Method for generating a tomographic temperature map in a patient by way of a CT device, control and computing unit and CT system

摘要

A method for generating a tomographic temperature map in a patient by use of a CT device, a computing unit and CT system with computing unit are disclosed. In at least one embodiment of the method, the local distribution of density and mean atomic number is determined on the basis of tomographic image data from different X-ray energy regions, and a local temperature distribution in the tissue of the patient is ascertained from previously experimentally determined or theoretically calculated relations between Z values, density and temperature.

主权项

1. A method for generating a tomographic temperature map in a patient using a CT device, the method comprising:
sampling and tomographically reconstructing attenuation values of tissue based on at least two mutually different X-ray energies or X-ray energy spectra relative to at least two sets of energy-dependent image data to generate tomographic image data; performing a rho/Z decomposition of the tomographic image data, and ascertaining a current local density and a current local mean Z value for each location; ascertaining a local temperature distribution in the tissue, current local temperature values being determined from previously experimentally determined or calculated relations between Z values, density and temperature; and at least one of outputting and visualizing a spatial temperature distribution based on the ascertaining.