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公开(公告)号：US20150306425A1
公开(公告)日：2015-10-29
申请号：US14443662
申请日：2013-11-20
Inventor： Shyam Bharat , Jochen Kruecker , Ananth Ravi , Ehsan Dehghan Marvast
CPC classification number: A61N5/1039 , A61B8/0841 , A61B34/20 , A61B90/39 , A61B2034/2051 , A61B2034/2061 , A61B2090/363 , A61B2090/3925 , A61B2090/3966 , A61B2560/0223 , A61N5/1001 , A61N5/1027 , A61N5/103 , A61N5/1075 , G06T7/337 , G06T7/70 , G06T7/80 , G06T7/97 , G06T2207/10132 , G06T2207/30081
Abstract: The invention relates to a calibration apparatus for calibrating a system for introducing an influencing element like a radiation source into an object, particularly for calibrating a brachytherapy system. First and second images show a longish introduction device (12) like a catheter and a tracking device (16) like an electromagnetically trackable guidewire inserted into the introduction device as far as possible, and the introduction device and a calibration element (46) having the same dimensions as the influencing element and being inserted into the introduction device as far as possible. A spatial relation between the tracking device and the calibration element is determined based on the images for calibrating the system. Knowing this spatial relation allows accurately determining an influencing plan like a brachytherapy treatment plan and accurately positioning the influencing element in accordance with the influencing plan, which in turn allows for a more accurate influencing of the object.
Abstract translation: 本发明涉及一种用于校准用于将诸如辐射源的影响元件引入物体的系统的校准装置，特别是用于校准近距离放射治疗系统。 第一图像和第二图像显示出尽可能插入到引入装置中的类似于导管和跟踪装置（16）的引导装置（12），并且引入装置和校准元件（46）具有 与影响元件相同的尺寸并且尽可能地插入到引入装置中。 基于用于校准系统的图像来确定跟踪装置和校准元件之间的空间关系。 了解这种空间关系可以准确地确定影响方案，如近距离放射疗法治疗计划，并根据影响计划准确定位影响因素，从而进一步影响对象。
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公开(公告)号：US10953242B2
公开(公告)日：2021-03-23
申请号：US15533462
申请日：2015-11-17
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shyam Bharat , Ehsan Dehghan Marvast , Cynthia Ming-Fu Kung , Jochen Kruecker , Ananth Ravi , Niranjan Venugopal
Abstract: An intervention system employs an interventional device (10), and a sensor wire (20) manually translatable within a lumen (11). The intervention system further employs a reconstruction controller (44) for reconstructing a shape of the interventional tool (10) responsive to a sensing of a manual translation of the sensor wire (20) within the lumen (11) (e.g., a EM sensor being attached to/embedded within a guide wire), and for determining a reconstruction accuracy of a translation velocity of the sensor wire (20) within the lumen (11) to thereby facilitate an accurate reconstruction of the shape of the interventional tool (10). The reconstruction accuracy may be determined by the reconstruction controller (44) as an acceptable translation velocity being less than an acceptable threshold, an unacceptable translation velocity being greater than an unacceptable threshold, and/or a borderline translation velocity being greater than the acceptable threshold and less than the unacceptable threshold. The reconstruction controller (44) generates an acceptability indicator that may be visualizing or audibly communicated via a user interface (48).
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公开(公告)号：US10816585B2
公开(公告)日：2020-10-27
申请号：US15537894
申请日：2015-12-09
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Ehsan Dehghan Marvast , Shyam Bharat , Amir Mohammad Tahmasebi Maraghoosh , Sandeep M Dalal , Jochen Kruecker , Cynthia Ming-Fu Kung , Niranjan Venugopal , Ananth Ravi
Abstract: An electromagnetic field quality assurance system employing an electromagnetic field generator (10) for emitting an electromagnetic field (12), and one or more quality assurance electromagnetic sensors (11, 21, 31, 41, 50) for sensing the emission of the electromagnetic field (12). The system further employs a quality assurance controller (74) for assessing a tracking quality of the electromagnetic field (12) derived from a monitoring of a sensed position of each quality assurance electromagnetic sensor (11, 21, 31, 41, 50) within a field-of-view of the electromagnetic field (12). The electromagnetic field generator (10), an ultrasound probe (20), an ultrasound stepper (30) and/or a patient table (40) may be equipped with the quality assurance electromagnetic sensor(s) (11, 21, 31, 41, 50).
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Patent Agency Ranking
公开(公告)号：US10290098B2
公开(公告)日：2019-05-14
申请号：US15516908
申请日：2015-09-30
Inventor： Shyam Bharat , Ehsan Dehghan Marvast , Jochen Kruecker , Ananth Ravi , Falk Uhlemann , Cynthia Ming-Fu Kung , Thomas Erik Amthor
Abstract: An interventional therapy system may include at least one controller which may obtain a reference image dataset of an object of interest (OOI); segment the reference image dataset to determine peripheral outlines of the OOI in the plurality image slices; acquire a current image of the OOI using an ultrasound probe; select a peripheral outline of a selected image slice of the plurality of slices of the reference image dataset which is determined to correspond to the current image; and/or modify the selected peripheral outline of the image slice of the plurality of slices of the reference image dataset in accordance with at least one deformation vector.
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公开(公告)号：US11547868B2
公开(公告)日：2023-01-10
申请号：US15517740
申请日：2015-10-16
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Jochen Kruecker , Shyam Bharat , Ehsan Dehghan Marvast , Cynthia Ming-Fu Kung , Ananth Ravi , Falk Uhlemann , Thomas Erik Amthor
Abstract: An interventional therapy system may include at least one catheter configured for insertion within an object of interest (OOI); and at least one controller which configured to: obtain a reference image dataset including a plurality of image slices which form a three-dimensional image of the OOI; define restricted areas (RAs) within the reference image dataset; determine location constraints for the at least one catheter in accordance with at least one of planned catheter intersection points, a peripheral boundary of the OOI and the RAs defined in the reference dataset; determine at least one of a position and an orientation of the distal end of the at least one catheter; and/or determine a planned trajectory for the at least one catheter in accordance with the determined at least one position and orientation for the at least one catheter and the location constraints.
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公开(公告)号：US10506947B2
公开(公告)日：2019-12-17
申请号：US15534513
申请日：2015-11-23
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Shyam Bharat , Ananth Ravi , Ehsan Dehghan Marvast , Cynthia Ming-Fu Kung , Jochen Kruecker
Abstract: A system for selecting a calibration includes a data structure (138) including non-transitory computer readable storage media having a plurality of calibration entries stored therein and indexed to position and/or orientation criteria for a field generator. The field generator is configured for placement in an environment for sensor tracking. A calibration selection module (140) is configured to determine a position and/or orientation of the field generator and, based on the position and/or orientation, determine, using the data structure, corresponding calibration information stored in the data structure. The calibration information is optimized based upon the position and/or orientation of the field generator.
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公开(公告)号：US10426974B2
公开(公告)日：2019-10-01
申请号：US15305374
申请日：2015-03-23
Inventor： Thomas Erik Amthor , Falk Uhlemann , SHyam Bharat , Ehsan Dehghan Marvast , Cynthia Ming-Fu Kung , Ananth Ravi , Jochen Kruecker
IPC: A61N5/10
Abstract: The generation of a pattern and for an adaptation to the specific geometry requires a lot of manual work. The workflow for the clinician is simplified during treatment planning. A treatment planning system is configured for determining a set of catheter or needle insertion positions to be used during treatment. The treatment planning system includes an image providing module for providing a medical image from which at least one treatment target structure can be derived. Further the treatment planning system includes a pattern providing module for providing one or a set of standard patterns for catheter or needle insertion including a plurality of catheter or needle insertion positions. The catheter or needle positions relate to treatment positions in the at least one treatment target structure.
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公开(公告)号：US09867998B2
公开(公告)日：2018-01-16
申请号：US14443662
申请日：2013-11-20
Inventor： Shyam Bharat , Jochen Kruecker , Ananth Ravi , Ehsan Dehghan Marvast
CPC classification number: A61N5/1039 , A61B8/0841 , A61B34/20 , A61B90/39 , A61B2034/2051 , A61B2034/2061 , A61B2090/363 , A61B2090/3925 , A61B2090/3966 , A61B2560/0223 , A61N5/1001 , A61N5/1027 , A61N5/103 , A61N5/1075 , G06T7/337 , G06T7/70 , G06T7/80 , G06T7/97 , G06T2207/10132 , G06T2207/30081
Abstract: The invention relates to a calibration apparatus for calibrating a system for introducing an influencing element like a radiation source into an object, particularly for calibrating a brachytherapy system. First and second images show a longish introduction device (12) like a catheter and a tracking device (16) like an electromagnetically trackable guidewire inserted into the introduction device as far as possible, and the introduction device and a calibration element (46) having the same dimensions as the influencing element and being inserted into the introduction device as far as possible. A spatial relation between the tracking device and the calibration element is determined based on the images for calibrating the system. Knowing this spatial relation allows accurately determining an influencing plan like a brachytherapy treatment plan and accurately positioning the influencing element in accordance with the influencing plan, which in turn allows for a more accurate influencing of the object.
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