摘要:
A method includes identifying a plurality of different anatomical sub-regions of the cardiovascular system of a subject in image data of the subject based on a subject specific cardiovascular anatomical model, wherein the plurality of different regions corresponds to regions where calcifications occur, searching for and identifying calcifications in the sub-regions based on voxel grey value intensity values of the image data, and generating a signal indicative of one or more regions of voxels of the image data respectively corresponding to sub-regions including identified calcifications. A computing system (118) includes a processor that automatically determines a plurality of different groups of voxels of image data of a subject, wherein each group of voxels corresponds to a different sub-region of the cardiovascular system of the subject and each group of voxels corresponds to a region that includes a calcification identified in the image data.
摘要:
A system for generating a view of a medical image comprises an input (1) for receiving information indicative of a suspected diagnosis of a patient. An input (2) for receiving a medical image of the patient. A mapper (3) for mapping the suspected diagnosis of the patient to a set of viewing parameters for viewing the medical image. A view generator (8) for providing a view of the medical image in accordance with the set of viewing parameters. A database (4) for mapping a suspected diagnosis into a set of generic viewing parameters. A transformer (5) for transforming the set of generic viewing parameters into a set of image-specific viewing parameters based on content of the medical image.
摘要:
The invention relates to a system (100) for retrieving a volumetric image data subset comprised in a data storage (105) of volumetric image data sets, the system comprising: a first query unit (111; 113) for composing a first query for searching the data storage (105) for a volumetric image data set comprising the volumetric image data subset; a second query unit (112; 113) for composing a second query for searching the volumetric image data set for the volumetric image data subset, the second query comprising anatomical structure information for identifying an anatomical structure within the volumetric image data set; a first determination unit (121; 123) for determining the volumetric image data set, based on the first query; a second determination unit (122; 123) for determining the volumetric image data subset of the volumetric image data set, based on the anatomical structure identified within the volumetric image data set, using the anatomical structure information comprised in the second query; and a retrieval unit (125) for retrieving the determined volumetric image data subset. The system is thus capable of retrieving a reduced amount of data describing the anatomical structure, i.e. a subset of a volumetric image data set.
摘要:
The invention relates to a method of measuring geometric variables of a three-dimensional structure contained in an object from at least on image representing the object, having the following steps:—use of a deformable first model describing the structure, the shape of which model can be described by parameters,—adjustment of the first model to the structure in the image,—determination of the parameters at which the first model exhibits optimum conformity with the structure,—use of a deformable second model describing the structure, which second model in shape corresponds to the first model, and which in addition contains at least one geometric variable,—modification of the second model according to the parameters determined, and—derivation of the geometric variable(s) from the modified second model.
摘要:
The invention relates to evaluating medical image information, in particular physical properties of an object (32). When preparing a surgical procedure e.g. a minimally invasive procedure, it may be beneficial to plan the procedure in detail before starting the operation. Thus, obtaining precise information about physical properties of an object (32), e.g. a diameter value (34, 36) of an anatomical structure may be beneficial. Accordingly, a method and a system for determining a physical property (34, 36) of an object (32) is provided, which employs local object context information (38) for determining a local physical property of the object (32).
摘要:
When generating radiology reports, image findings and/or clinical information is automatically mapped to an appropriate standardized structured report template. The report template contains placeholders for information such as case-specific images and measureable values, and the placeholders are filled in by either the radiologist or by automatic procedures such as image processing algorithms, text extraction algorithms, or the like. In this manner, the radiologist is assisted in effectively generating a reader-independent high-quality diagnostic report.
摘要:
A method and an apparatus for selectively and interactively processing data sets is proposed. A first data set is gathered and a second data set is gathered. A first feature is selected interactively from the first data set. After the selection, the first feature is brought in correspondence with a second feature in the second data set during an identification step. The first feature, the second feature and combinations thereof can be visualized.
摘要:
Diagnostic angiograms only provide the projected lumen of a coronary, which is only an indirect measure of blood flow and pressure decline. According to an exemplary embodiment of the present invention, a motion compensated determination of a flow dynamics and a pressure decline for stenosis grading is provided, in which the motion compensation is performed on the basis of a tracking of a first position of a first marker and a second position of a second marker in the projection data set. This may provide for a robust and precise flow dynamics and pressure decline determination.
摘要:
A system (900), method (100, 200) and apparatus (600, 700, 800) are provided for analyzing a blood flow in a vascular system from a dynamic diagnostic observation sequence (101) to determine blood flow parameters (112) for further determination of filters, replay speed and finally visualization of the replayed original and filtered sequences. A first embodiment (100) extracts features of the observation and uses these features to select an appropriate model from a database of pre-determined models of vascular system of interest which have associated parameters. These parameters are varied to create an instance of the model that best matches the original observation. A second embodiment (200) visualizes a replay of the original observation (101) and the observation (101′) predicted by the model to highlight differences therebetween. A third embodiment (800) provides filtering and control of the replay speed.
摘要:
The invention relates to a method and a system for the simultaneous reconstruction of the three-dimensional vessel geometry and the flow characteristics in a vessel system. According to one realization of the method, vessel segments (41) of a parametric models are fitted to differently oriented X-ray projections (Pl, Pk, PN) of the vessel system that are generated during the passage of a bolus of contrast agent, wherein the fitting takes the imaged contrast agent dynamics and physiological a priori knowledge into account. In an alternative embodiment, the vessel geometry is reconstructed progressively along each vessel, wherein a new segment of a vessel is added based on the continuity of the vessel direction, vessel radius and reconstructed contrast agent dynamics.