Abstract: A computer-aided method (30) comprises alternating between one or more of (i) navigational tasks and (ii) measuring, qualification, and quantification tasks of a clinical task in accordance with defined simple click style user interactions. The defined simple click style user interactions are based upon a domain knowledge (34) that includes (i) details of an anatomy and (ii) details of a clinical measurement, quantification, or workflow of the clinical task associated with the anatomy. Responsive to execution of a simple click style user interaction within a current view (36), and further in accordance with a corresponding navigational task or measuring, qualification, or quantification task, the method transitions within the clinical task and its workflow between one or more of (a) a first measurement point and a next measurement point within the current view (36) or (b) the current view (36) and a next view (38).

Abstract: A computer-aided method (30) comprises alternating between one or more of (i) navigational tasks and (ii) measuring, qualification, and quantification tasks of a clinical task in accordance with defined simple click style user interactions. The defined simple click style user interactions are based upon a domain knowledge (34) that includes (i) details of an anatomy and (ii) details of a clinical measurement, quantification, or workflow of the clinical task associated with the anatomy. Responsive to execution of a simple click style user interaction within a current view (36), and further in accordance with a corresponding navigational task or measuring, qualification, or quantification task, the method transitions within the clinical task and its workflow between one or more of (a) a first measurement point and a next measurement point within the current view (36) or (b) the current view (36) and a next view (38).

Abstract: The apparatus 40 arranged for enabling an object mapping in a multi-dimensional dataset has an input 42 for receiving the multi-dimensional dataset in any suitable form. The core of the apparatus is formed by a processor 44, such as a conventional microprocessor or signal processor, a background storage 48 (typically based on a hard disk) and working memory 46 (typically based on RAM). The background storage 48 can be used for storing the dataset (or parts of it) when not being processed, and for storing operations of the graphic relational application macro and models (when not being executed by the processor). The main memory 46 typically holds the (parts of) the dataset being processed and the instructions of the graphic relational application macro and the models used for processing those parts of the dataset.

Abstract: A system for visualizing a 3D volume, in particular for medical applications, includes an input 1010 for receiving a three-dimensional set of data representing voxel values of the 3D volume. The data set is stored in a storage 1030. A processor projects the volume onto an imaginary 2D projection screen from a predetermined viewpoint. For each pixel of the 2D projection image a ray is cast through the pixel and through the volume. A protocol is used that, while traversing along ray positions within the volume, determines a rendering algorithm and/or rendering parameters in dependence on the ray position. For each ray position the determined rendering algorithm/parameters are used to calculate a contribution to a pixel value of the pixel based on at least one voxel value within a predetermined range of the ray position. An output 1040 is used for providing pixel values of a 2D image for rendering on a display.

Abstract: An apparatus 1000 includes an input 1010 for receiving an N-dimensional signal, N?2. A storage 1030 stores a composite model of a composite structure for estimating parameters of the model with respect to the signal. The composite model is based on constituent models 210-290 that each correspond to a constituent structure in the signal and that are incorporated in the composite structure. Each constituent model is designated for estimating parameters of the constituent model with respect to the signal based on prior knowledge of the constituent structure. At least two of the constituent models are based on differing technologies. Each constituent model is provided with a uniform interface for controlling the constituent model and for retrieving parameters estimated by it.

Abstract: An image display system is provided with an image display apparatus (1) for displaying an image, the image being dependent on the position and orientation of the image display apparatus and independent of the position and posture of a user of the image display apparatus. An image guided surgery system is provided with such an image display system in order to show the user, during a medical treatment utilizing an instrument, where within the patient the instrument is situated, without the user having a direct view of said instrument.

Abstract: An image-guided surgery system is used to show a user, for example a surgeon, a position of a surgical instrument in an operating area in the body of a patient during a surgical operation. The image-guided surgery system includes an alignment system for deriving an alignment line through a target position, for selecting a starting plane through an end of the surgical instrument, for deriving a starting point on the alignment line and in the starting plane, and for reproducing a position of said end and of said starting point relative to one another in the starting plane. For example, the positions of the end and the starting point in the starting plane are reproduced in a guide image.

Abstract: A multi-media data processing device has a visual display, storage, and a user interface with voice input and a manually actuatable remote control. In particular, the remote control and the voice input device are physically integrated to a hand-sized unit. Combining discrete manipulatory control signals and voice input signals allows to select and annotate transiently displayed pictures. Advantageously, the hand-sized unit is wireless.