Abstract: An apparatus for medical imaging of a patient, including an object of interest, is provided. The apparatus comprises a patient support unit, a processor, and a display. The patient support unit is configured to receive a patient. The processor is configured to receive scout images of the patient acquired in respective positions of the apparatus. Each respective position is represented by a position parameter. The processor is further configured to select at least one iso-centering image from the scout images by geometrical calculation using the position parameter of each scout image and a position parameter representing a present position of the apparatus. The processor is further configured to adapt the appearance of the at least one iso-centering image according to the present position of the apparatus. The display is configured to present the at least one adapted iso-centering image.

Abstract: An apparatus displays (20) first data on at least one display unit. A user interaction portion of a user input area of at least one input unit is determined (30); and on the at least one display unit a portion of the first data is displayed (40) simultaneously with second image data. The second image data is representative of the user interaction portion of the user input area of the at least one input unit.

Abstract: An apparatus displays (20) first data on at least one display unit. A user interaction portion of a user input area of at least one input unit is determined (30); and on the at least one display unit a portion of the first data is displayed (40) simultaneously with second image data. The second image data is representative of the user interaction portion of the user input area of the at least one input unit.

Abstract: The present invention relates to iso-centering an object of interest prior to computer tomography (CT) scanning for examination of a patient in a C-arm CT examination apparatus. In order to provide facilitated positioning and to overcome or at least minimize these drawbacks, a C-arm CT examination apparatus (10) for CT scanning for examination of a patient is provided. The apparatus comprises a patient support unit, an acquisition unit, a data processing and control unit, and a display unit. The patient support unit is configured to bed a patient, free of motion, on the patient support. The acquisition unit is configured to acquire scout images of the patient including the object of interest in a respective position of the apparatus having position parameters.

Abstract: The present invention relates to an apparatus for displaying data. It is described to display (20) first data on at least one display unit. A user interaction portion of a user input area of at least one input unit is determined (30); and on the at least one display unit a portion of the first data is displayed (40) simultaneously with second image data, wherein the second image data is representative of the user interaction portion of the user input area of the at least one input unit.

Abstract: A method and an apparatus for motion visualization of a moving object in angiographic images are described. In a preferred embodiment of the method, first a mask image of the object of interest is acquired and a sequence of angiographic images of the object in different phases of motion of the object is acquired. Then, a first angiographic subtraction image and at least a second angiographic subtraction image are generated by subtracting the angiographic images from the mask image. Subsequently, a twice subtracted image is generated by subtracting the first angiographic subtraction image from the second angiographic subtraction image. In this way a double subtraction, i.e. a twice subtracted angiography is performed, to facilitate the assessment of the motion.

Abstract: A system, apparatus and method are provided for measuring and removing the influence of pulsatility on contrast agent flow in a region of interest of a vascular system of a patient. Once the change of blood speed over the cardiac cycle is known (pulsatility), this influence is removed from acquired image sequence for outcome control such that “quasi-stationary”, regular flow acquisition is passed on to subsequent visualization and analysis processes. A contrast agent injector is also provided that simultaneously measures and uses ECG to inject a known contrast agent at a fixed point over the cardiac cycle or such that a known amount of contrast agent will arrive at a known time at a region of interest in the vasculature of a patient, thus controlling one of the main unwanted variables in an acquisition of blood flow sequences.

Abstract: A method and an apparatus for motion visualization of a moving object in angiographic images are described. In a preferred embodiment of the method, first a mask image of the object of interest is acquired and a sequence of angiographic images of the object in different phases of motion of the object is acquired. Then, a first angiographic subtraction image and at least a second angiographic subtraction image are generated by subtracting the angiographic images from the mask image. Subsequently, a twice subtracted image is generated by subtracting the first angiographic subtraction image from the second angiographic subtraction image. In this way a double subtraction, i.e. a twice subtracted angiography is performed, to facilitate the assessment of the motion.

Abstract: A three-dimensional rotational angiography (3DRA) system, in which a finite element method (FEM) package is incorporated which can read in surface meshes (20b) of a reconstructed 3DRA image of an aneurysm to generate FEM meshes (20a) which are closely approximated to the observed aneurysm (20b) in an iterative process by changing the material properties of the aneurysm used in generating the simulated representations (20a) thereof. Thus, the material properties of the closely approximated simulated representation (20a) can be used in subsequent analysis of the physical properties of the aneurysm under consideration.

Abstract: A three-dimensional rotational angiography (3DRA) system, in which a finite element method (FEM) package is incorporated which can read in surface meshes (20b) of a reconstructed 3DRA image of an aneurysm to generate FEM meshes (20a) which are closely approximated to the observed aneurysm (20b) in an iterative process by changing the material properties of the aneurysm used in generating the simulated representations (20a) thereof. Thus, the material properties of the closely approximated simulated representation (20a) can be used in subsequent analysis of the physical properties of the aneurysm under consideration.