Abstract: An example of the invention relates to a method for the multidimensional reconstruction of image data in a reconstruction area based on projection measurement data which has been acquired using an imaging system, preferably a computed tomography system, wherein the reconstruction is carried out in three different spatial directions with predefined resolution widths; a resolution width in at least one spatial direction being automatically adapted to a resolution width in another spatial direction, such that the adapted resolution widths are substantially identical.

Abstract: An example of the invention relates to a method for the multidimensional reconstruction of image data in a reconstruction area based on projection measurement data which has been acquired using an imaging system, preferably a computed tomography system, wherein the reconstruction is carried out in three different spatial directions with predefined resolution widths; a resolution width in at least one spatial direction being automatically adapted to a resolution width in another spatial direction, such that the adapted resolution widths are substantially identical.

Abstract: 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.

Abstract: 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.

Abstract: A method is disclosed for providing tomographic pictures of a patient with the aid of a tomographic system by using contrast medium injections. The patient is firstly injected with a defined test bolus, while the temporal concentration profile of the contrast medium in at least one body region is determined in at least one scanning plane. The functional parameters of a prediction model that maps or at least approximates the relationship between the profile of a contrast medium injection and the temporal profile of the contrast medium concentration in the body region are determined from the measured profile of the contrast medium concentration in relation to the profile of the test bolus injection.

Abstract: A method is disclosed for providing tomographic pictures of a patient with the aid of a tomographic system by using contrast medium injections. The patient is firstly injected with a defined test bolus, while the temporal concentration profile of the contrast medium in at least one body region is determined in at least one scanning plane. The functional parameters of a prediction model that maps or at least approximates the relationship between the profile of a contrast medium injection and the temporal profile of the contrast medium concentration in the body region are determined from the measured profile of the contrast medium concentration in relation to the profile of the test bolus injection.

Abstract: An imaging method and an apparatus for visualizing coronary heart diseases, in particular instances of myocardial infarction damage, are disclosed. The technique of computed tomography is used to record and reconstruct at least one image of the heart or a region of the heart, which image covers at least one part of the myocardium. Areas in the region of the myocardium that are defectively perfused and/or damaged are segmented by windowing measured data for the image or data derived therefrom, and displayed with identification in the image. It is thus possible, for example, to pictorially display the extent of the damage after a myocardial infarct.

Abstract: A method and a device are proposed for determining the type of fluid in a fluid mass in an object. X-ray attenuation data is supplied from one or a plurality of X-ray recordings of an object area including the fluid mass in the object, which were acquired with at least two different X-ray spectra or detector weightings. The X-ray attenuation data is used to determine values for effective atomic number and density for the fluid mass and average these to obtain a mean value for effective atomic number and density for the fluid mass. Comparison data is also supplied, which indicates fluctuation ranges for combinations of effective atomic number and density for different types of fluid. The mean values for effective atomic number and density of the fluid mass are compared with the comparison data to determine the fluctuation range and thereby the type of fluid, into which the two mean values fall.