摘要:
The present invention relates to a system for guiding a medical instrument in a patient body. Such a system comprises means for acquiring a 2D X-ray image of said medical instrument, means for acquiring a 3D ultrasound data set of said medical instrument using an ultrasound probe, means for localizing said ultrasound probe in a referential of said X-ray acquisition means, means for selecting a region of interest around said medical instrument within the 3D ultrasound data set and means for generating a bimodal representation of said medical instrument detection by combining said 2D X-ray image and said 3D ultrasound data set. A bimodal representation is generated on the basis of the 2D X-ray image by replacing the X-ray intensity value of points belonging to said region of interest by the ultrasound intensity value of the corresponding point in the 3D ultrasound data set.
摘要:
The present invention relates to a medical system comprising a medical instrument to be guided in a patient body, ultrasound acquisition means using an ultrasound probe for acquiring a 3D ultrasound data set and X-ray acquisition means for acquiring a 2D X-Ray image, which comprises a projection of said medical instrument. The system in accordance with the invention further comprises means for localizing said ultrasound probe within a referential of said X-Ray acquisition means, means for providing a first localization of said medical instrument within a referential of the ultrasound acquisition means, means for converting said first ultrasound localization into a first X-Ray localization within the referential of said X-Ray acquisition means, means for providing a second X-Ray localization of the projection of said medical instrument in the two-dimensional X-ray image, means for mapping said 3D ultrasound data set with said 2D X-ray image in accordance with a transformation, which minimizes a distance between a projection of said first X-Ray localization on said 2D X-Ray image and said second X-Ray localization and means for generating and displaying a bi-modal representation of said medical instrument, in which said 2D X-ray image and said mapped 3D ultrasound data are combined.
摘要:
The present invention relates to a system for guiding a medical instrument in a patient body. Such a system comprises means for acquiring a 2D X-ray image of said medical instrument, means for acquiring a 3D ultrasound data set of said medical instrument using an ultrasound probe, means for localizing said ultrasound probe in a referential of said X-ray acquisition means, means for selecting a region of interest around said medical instrument within the 3D ultrasound data set and means for generating a bimodal representation of said medical instrument detection by combining said 2D X-ray image and said 3D ultrasound data set. A bimodal representation is generated on the basis of the 2D X-ray image by replacing the X-ray intensity value of points belonging to said region of interest by the ultrasound intensity value of the corresponding point in the 3D ultrasound data set.
摘要:
The present invention relates to a medical imaging system for guiding a medical instrument (4) which performs a plurality of actions at a plurality of points (P1, P2, . . . PM) in contact with a structure (3) of a body of a subject. Such a medical system comprises acquisition means for acquiring a plurality of three-dimensional (3D) image data sets (3DIS(t1), 3DIS(t2) . . . 3DIS(t)) of said structure (3), means (9) for associating one of said plurality of points (Pj) with one of said plurality of 3D image data sets (3DIS(ti)), means (10) for computing a reference 2D image data set (3DIS(tR)) from said plurality of 3D image data sets, means (11) for defining a transformation (TR(ti)) to the points (Pj) of said plurality of points which are associated with said one of said 3D image data sets (3DIS(ti)) and means (13) for visualizing said transformed points (TR(ti)Pj).
摘要翻译:本发明涉及一种医疗成像系统,用于引导在多个点(P< 1> 2> 2>)上执行多个动作的医疗器械(4)。 与主体的身体的结构(3)接触。 这样的医疗系统包括用于获取多个三维(3D)图像数据集(3DIS(t 1> 1),3DIS(t 2))的获取装置。 所述结构(3)的3DIS(t)),用于将所述多个点(P SUB)中的一个与所述多个3D图像数据集中的一个相关联的装置(9)(3DIS(t) (10),用于计算来自所述多个3D图像数据集的参考2D图像数据集(3DIS(t)R))的装置(10),用于 定义与所述3D图像数据集(3DIS)中的所述一个相关联的所述多个点的点(P SUB)的变换(TR(t i i i))) (13),以及用于可视化所述变换点(TR(t))的装置(13)。
摘要:
The present invention relates to an intervention guidance system in which the location of an interventional medical device (30) within a body volume is determined by image processing means (14) from live, three-dimensional ultrsound images thereof, and this localisation is used to generate a control signal for steering an ultrasound beam (20) so as to alter the imaging plane (or region of interest 235) in accordance with the relative location within the body volume of the intervention device (30). The use of image processing techniques to localise the intervention device (30) obviates the need for specific locations on the device.
摘要:
An ultrasound imaging system and method includes acquiring data including a first plane and a second plane. The system and method includes adjusting a first orientation of the first plane and automatically adjusting a second orientation of the second plane in order to maintain a fixed relationship between the second plane and the first plane.
摘要:
An ultrasound imaging system and method include acquiring ultrasound data of an anatomical structure, generating a live image based on the ultrasound data, and displaying the live image. The system and method include displaying a target image of the anatomical structure. The system and method include comparing the live image to the target image.
摘要:
The invention relates to an ultrasound images acquisition system. First, a first sequence of ultrasound images (I1) of an organ (LV) is acquired at a first image rate (IR1). Then a second sequence of ultrasound three-dimensional images (I3D—1) of a sub-volume (S_V1) covering a part of interest (RI/VI) in the first sequence (I1) is acquired at a second image rate (IR2) and a third sequence of ultrasound three-dimensional images (I3D—2) of a reference sub-volume (S_V0) is acquired at the second image rate (IR2). Finally the second and third sequences of three-dimensional images sequences (I3D—1, I3D—2) are compared.
摘要:
Image processing method for displaying an image sequence of a deformable 3-D object with indications of the object wall motions comprising steps of acquiring image data of an image sequence, segmenting the 3-D object in the images of the sequence for locating the wall of the 3-D object, and coloring voxels or parts of the wall in function of their displacement with respect to the wall of the 3-D object in one image of the sequence chosen as a reference. Color images of the 3-D object with color coded voxels or parts of the wall are displayed in a sequence for the user to estimate the object wall motion. This method is used in medical examination apparatus for studying ultrasound images of organs whose walls have motion.
摘要:
The invention relates to an image processing method of extracting geometrical data of the spine, for extracting the left and right pedicle landmarks of each spine vertebra, comprising steps of: acquiring image data of a 2-D frontal image of the spine; associating spine States to vertebra positions along the spine and estimating locations of left and right pedicle landmark Candidates in each State; defining a State Cost for forming Couples of left and right pedicle landmark Candidates (PL and PR); estimating sets of Best Couple Candidates, in each State, from the lowest State Costs; defining a Path Cost to go from one State to the next State; selecting a pedicle landmark Couple in each spine State (V) among the Best Couple Candidates from the minimum Path Costs, and localizing the left and right pedicle landmarks of each spine vertebra from said selected pedicle landmark Couple. The invention also relates to a system, a medical apparatus and a program product for carrying out the method.Application: Medical Imaging x-ray Medical System and apparatus; Program Product for Medical Imaging.