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公开(公告)号：EP0999800A1
公开(公告)日：2000-05-17
申请号：EP99912013.2
申请日：1999-04-22
IPC分类号： A61B19/00
摘要： An imaging modality, in particular a mobile CT system, comprises an imaging system for imaging an object to be examined. The imaging modality is also provided with an image guided surgery system which includes a position measuring system for measuring positions within the object and a data processor for deriving a transformation between positions within the object and the corresponding positions in the image. The position measuring device is also arranged to measure the position of the imaging system and the data processor is arranged to derive the transformation from the position and/or orientation of the imaging system. The position measuring system is notably an optical position measuring system which is arranged to measure the position of the gantry of the CT system. The data processor is arranged to derive the transformation from the measured position of the gantry. A highly accurate result is obtained when a calibration is carried out which links the position of the CT gantry to the position of the scanning plane.
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公开(公告)号：EP1652185A1
公开(公告)日：2006-05-03
申请号：EP04724683.0
申请日：2004-03-31
CPC分类号： H04N21/42646 , G11B27/005 , G11B27/105 , H04N5/783 , H04N5/85 , H04N21/440281
摘要： The invention relates to a method and apparatus for fast retrieval of frames of a video stream or other data fragments like sound for fast, non-real-time trickplay navigation through the content. According to the invention, a group of multiple fragments of data is identified for rendering; the pick-up unit is moved to a location on the medium where the identified group of multiple fragments of data is stored; a fragment of data is selected from the group of multiple fragments of data, the fragment of data being fastest retrievable by the pick-up unit; and the selected fragment of data is retrieved for rendering.
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公开(公告)号：EP2049886A2
公开(公告)日：2009-04-22
申请号：EP07825953.8
申请日：2007-07-23
CPC分类号： G01N21/4795 , A61B5/0091 , A61B5/4312 , G01N21/6456
摘要： A device for imaging an interior of a turbid medium arranged to couple excitation light from a light source (5) into a receiving volume (20) containing a turbid medium from multiple entrance positions for light relative to the turbid medium (25) simultaneously. Multiple entrance positions for light may be created by coupling excitation light into the receiving volume (20) from M discrete entrance positions for light chosen from a plurality of N discrete entrance positions for light (M
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公开(公告)号：EP2063764A2
公开(公告)日：2009-06-03
申请号：EP07826231.8
申请日：2007-09-03
IPC分类号： A61B5/00
CPC分类号： A61B5/4312 , A61B5/0091
摘要： The invention relates to a method (1) for imaging an interior of a turbid medium comprising the following steps: a) accommodation (3) of the turbid medium in a receiving volume comprising an entrance position for light and an exit position for light; b) irradiation (5) of the turbid medium with light from a light source using an entrance position for light; c) detection (10) of light emanating from the receiving volume as a result of the irradiation of the turbid medium using a photodetector unit using an exit position for light; d) detection (15, 17) of an out of bounds displacement of the turbid medium using light emanating from the receiving volume. To this end the invention proposes a number of ways to detect an out of bounds displacement of the turbid medium based on comparing at least two signals relating to light emanating from the receiving volume and a single exit position. The invention also relates to a device (45) for imaging an interior of a turbid medium (90) and a medical image acquisition device (105) both employing the method. According to the invention the device (45) for imaging an interior of a turbid medium (90) and the medical image acquisition device are adapted such that they further comprise displacement detection means according to the method and its embodiments according to the invention.
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5.发明公开OPTICAL TOMOGRAPHY MEASUREMENT USING AN ADAPTED BRIM FOR THE RECEIVING VOLUME 审中-公开光学层析成像测量新技术的改编EDGE用于接收VOLUME
公开(公告)号：EP2063765A2
公开(公告)日：2009-06-03
申请号：EP07826262.3
申请日：2007-09-05
IPC分类号： A61B5/00
CPC分类号： A61B5/415 , A61B5/0091 , A61B5/418 , A61B5/4312
摘要： The invention relates to a device for imaging an interior of a turbid medium comprising: a) a receiving volume for receiving at least a part of the turbid medium, with the receiving volume being bound by a boundary having an opening bound by a brim, b) a light source for irradiating the turbid medium, and c) a photodetector unit for detecting light emanating from the volume as a result of irradiating the turbid medium. The device is adapted such that the brim is arranged for optically coupling the light source to the turbid medium and the turbid medium to the photodetector unit. One embodiment of the invention relates to a device for imaging an interior of a female breast comprising a cup-like receptacle (20) for accommodating the breast. The receptacle (20) comprises a convex shaped brim (60) arranged for optically coupling the light source to the patient's (55) breast and the breast to the photodetector unit.
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公开(公告)号：EP0999800B1
公开(公告)日：2005-12-21
申请号：EP99912013.2
申请日：1999-04-22
摘要： An imaging modality, in particular a mobile CT system, comprises an imaging system for imaging an object to be examined. The imaging modality is also provided with an image guided surgery system which includes a position measuring system for measuring positions within the object and a data processor for deriving a transformation between positions within the object and the corresponding positions in the image. The position measuring device is also arranged to measure the position of the imaging system and the data processor is arranged to derive the transformation from the position and/or orientation of the imaging system. The position measuring system is notably an optical position measuring system which is arranged to measure the position of the gantry of the CT system. The data processor is arranged to derive the transformation from the measured position of the gantry. A highly accurate result is obtained when a calibration is carried out which links the position of the CT gantry to the position of the scanning plane.
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