公开(公告)号：US11602646B2

公开(公告)日：2023-03-14

申请号：US17443895

申请日：2021-07-28

申请人： Elekta LTD.

发明人： Martin Emile Lachaine ,  Silvain Beriault

IPC分类号： A61N5/10 ,  G06T7/33 ,  G16H40/63 ,  G16H20/40 ,  G16H30/20 ,  G16H30/40 ,  G16H50/20 ,  G06T7/20 ,  G06T7/246 ,  A61B6/02 ,  A61B90/00

摘要： Systems and methods are provided for registering images. The systems and methods perform operations comprising: receiving, at a first time point in a given radiation session, a first imaging slice corresponding to a first plane; encoding the first imaging slice to a lower dimensional representation; applying a trained machine learning model to the encoded first imaging slice to estimate an encoded version of a second imaging slice corresponding to a second plane at the first time point to provide a pair of imaging slices for the first time point; simultaneously spatially registering the pair of imaging slices to a volumetric image, received prior to the given radiation session, comprising a time-varying object to calculate displacement of the object; and generating an updated therapy protocol to control delivery of a therapy beam based on the calculated displacement of the object.

公开(公告)号：US11234676B2

公开(公告)日：2022-02-01

申请号：US15898498

申请日：2018-02-17

申请人： Elekta LTD.

发明人： Francois Marcil

IPC分类号： A61B8/00 ,  A61B90/57 ,  A61N5/10 ,  A61B90/50 ,  A61B90/00

摘要： Systems and methods can include a system for positioning an ultrasound probe proximal to anatomy of a patient on a radiation couch including a substantially planar base including engagement features to directly or indirectly index the substantially planar base to the radiation couch and a centrally located guide extending longitudinally along a top side of the base, a probe holder, configured to be coupled to, to translate longitudinally, and to be user-accessed and user-controlled from within, a central region of the substantially planar base, a clamp, configured to localize the probe holder at a specified location along a translation path in the central region of the substantially planar base, leg supports shaped to accommodate a patient's legs from behind, the pair of leg supports being shaped and arranged to provide a space therebetween that can accommodate an ultrasound probe holder.

公开(公告)号：US20210361974A1

公开(公告)日：2021-11-25

申请号：US17443895

申请日：2021-07-28

申请人： Elekta LTD.

发明人： Martin Emile Lachaine ,  Silvain Beriault

IPC分类号： A61N5/10 ,  G06T7/33 ,  G16H40/63 ,  G16H20/40 ,  G16H30/20 ,  G16H30/40 ,  G16H50/20 ,  G06T7/20 ,  G06T7/246

摘要： Systems and methods are provided for registering images. The systems and methods perform operations comprising: receiving, at a first time point in a given radiation session, a first imaging slice corresponding to a first plane; encoding the first imaging slice to a lower dimensional representation; applying a trained machine learning model to the encoded first imaging slice to estimate an encoded version of a second imaging slice corresponding to a second plane at the first time point to provide a pair of imaging slices for the first time point; simultaneously spatially registering the pair of imaging slices to a volumetric image, received prior to the given radiation session, comprising a time-varying object to calculate displacement of the object; and generating an updated therapy protocol to control delivery of a therapy beam based on the calculated displacement of the object.

公开(公告)号：US20210268313A1

公开(公告)日：2021-09-02

申请号：US17182572

申请日：2021-02-23

申请人： Elekta Ltd

发明人： Niklas Gunnarsson ,  Jens Sjölund

IPC分类号： A61N5/10 ,  G06N3/08

摘要： The present invention relates to the field of radiation therapy and methods, software and systems for image registration. According to the present invention, methods for image registration of images of a patient comprising are provided. The method may include receiving a set of image data from the patient; selecting one or more tracking regions in the set of image data, each tracking region including a tracking point or set of tracking points; receiving sets of image data captured at different times from the patient; identifying corresponding tracking regions in the sets of image data captured at different times; estimating a displacement field describing displacement vectors for a number of points in the sets of image data including the tracking regions, each displacement vector specifying a position of a region in reference to a previous position.

公开(公告)号：US20210046329A1

公开(公告)日：2021-02-18

申请号：US16824276

申请日：2020-03-19

申请人： Elekta LTD.

发明人： Martin Emile Lachaine ,  Francois Paul George Rene Hebert

IPC分类号： A61N5/10 ,  G06T7/20 ,  G06T7/33 ,  G16H40/63 ,  G16H20/40 ,  G16H30/20 ,  G16H30/40 ,  G16H50/20

摘要： Systems and methods are provided for registering images. The systems and methods perform operations comprising: receiving, at a first time point during a given radiation session, a first imaging slice comprising an object, the first imaging slice corresponding to a first plane; accessing, at the first time point during the given radiation session, a composite imaging slice corresponding to the first plane, the composite imaging slice being generated using a plurality of imaging slices obtained prior to the first time point; spatially registering the first imaging slice and the composite imaging slice; determining movement of the object using the spatially registered first imaging slice and the composite imaging slice; and generating an updated therapy protocol to control delivery of a therapy beam based on the determined movement.

公开(公告)号：US20190231306A1

公开(公告)日：2019-08-01

申请号：US15898503

申请日：2018-02-17

申请人： Elekta LTD.

发明人： Francois Marcil

IPC分类号： A61B8/00 ,  A61N5/10

CPC分类号： A61B8/4209 ,  A61B8/40 ,  A61B90/57 ,  A61B2090/0808 ,  A61N5/1039 ,  A61N5/1049 ,  A61N2005/1058 ,  A61N2005/1097

摘要： Systems and methods can include a system for positioning an ultrasound probe proximal to anatomy of a patient on a radiation couch including a substantially planar base including engagement features to directly or indirectly index the substantially planar base to the radiation couch and a centrally located guide extending longitudinally along a top side of the base, a probe holder, configured to be coupled to, to translate longitudinally, and to be user-accessed and user-controlled from within, a central region of the substantially planar base, a clamp, configured to localize the probe holder at a specified location along a translation path in the central region of the substantially planar base, leg supports shaped to accommodate a patient's legs from behind, the pair of leg supports being shaped and arranged to provide a space therebetween that can accommodate an ultrasound probe holder.

公开(公告)号：US20190231303A1

公开(公告)日：2019-08-01

申请号：US15898486

申请日：2018-02-17

申请人： Elekta LTD.

发明人： Francois Marcil

IPC分类号： A61B8/00 ,  A61B90/57 ,  A61N5/10

CPC分类号： A61B8/4209 ,  A61B8/40 ,  A61B90/57 ,  A61B2090/0808 ,  A61N5/1039 ,  A61N5/1049 ,  A61N2005/1058 ,  A61N2005/1097

摘要： Systems and methods can include a system for positioning an ultrasound probe proximal to anatomy of a patient on a radiation couch including a substantially planar base including engagement features to directly or indirectly index the substantially planar base to the radiation couch and a centrally located guide extending longitudinally along a top side of the base, a probe holder, configured to be coupled to, to translate longitudinally, and to be user-accessed and user-controlled from within, a central region of the substantially planar base, a clamp, configured to localize the probe holder at a specified location along a translation path in the central region of the substantially planar base, leg supports shaped to accommodate a patient's legs from behind, the pair of leg supports being shaped and arranged to provide a space therebetween that can accommodate an ultrasound probe holder.

公开(公告)号：US20180321337A1

公开(公告)日：2018-11-08

申请号：US15586988

申请日：2017-05-04

申请人： ELEKTA LTD.

发明人： Henrik ALEXIS ,  Kjell ELDERED ,  Erik CARLANDER

IPC分类号： G01R33/30 ,  A61N5/10 ,  A61G13/02

摘要： A structural element for use in a radiotherapy system or a magnetic resonance imaging system or a combination of a radiotherapy system and a magnetic resonance imaging system includes a plurality of fibers and a matrix, whereby the plurality of fibers are embedded in the matrix.

公开(公告)号：US20180321336A1

公开(公告)日：2018-11-08

申请号：US15585662

申请日：2017-05-03

申请人： ELEKTA LTD.

发明人： Per CARLSSON ,  Erik CARLANDER ,  Henrik ALEXIS ,  Maja NILSSON

IPC分类号： G01R33/28 ,  A61B5/055 ,  A61N5/10

CPC分类号： G01R33/283 ,  A61B5/0555 ,  A61B6/0407 ,  A61G13/0018 ,  A61G13/104 ,  A61G2210/50 ,  A61N5/10 ,  A61N5/1077 ,  A61N2005/1097

摘要： A system for moving a patient into and from a medical apparatus includes a patient support arranged outside a treatment space of a medical apparatus, a treatment table arranged inside the treatment space in the medical apparatus and a patient bed movable in a longitudinal direction from the patient support to the treatment table and back by means of activation of a transferring mechanism. The patient bed is provided with at least a first communication channel for transferring communication signals.

公开(公告)号：US20180311509A1

公开(公告)日：2018-11-01

申请号：US15581283

申请日：2017-04-28

申请人： ELEKTA LTD.

发明人： Jens SJÖLUND ,  Håkan NORDSTRÖM

IPC分类号： A61N5/10

摘要： The present invention relates to the field of radiation therapy. In particular, the present invention relates to methods for treatment planning for a radiation therapy system. The method includes setting a number of objectives reflecting clinical criteria are set for the regions of interest and generating radiation dose profiles to be delivered to these regions of interest. A convex optimization function for optimizing the delivered radiation based on the objectives is provided and dose profiles for specific treatment configurations including beam shape settings for the radiation dose profiles are calculated using the convex optimization function. Treatment plans including determining the radiation dose profiles to be delivered during treatment based on the treatment configurations are created and an optimal treatment plan that satisfies the clinical criteria is selected.