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Three dimensional localization of a moving target for adaptive radiation therapy

An adaptive filter, three-dimensional technology, applied in the field of radiotherapy or radiotherapy, which can solve the problem of 2DMR slices not including tumors

Active Publication Date: 2018-01-02
ELEKTA AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 2D MR slices are usually acquired at specific locations on the patient's body, and due to target organ or tumor motion, 2D MR slices may not include tumors or target organs.

Method used

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  • Three dimensional localization of a moving target for adaptive radiation therapy
  • Three dimensional localization of a moving target for adaptive radiation therapy
  • Three dimensional localization of a moving target for adaptive radiation therapy

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Embodiment Construction

[0021] In the present disclosure, a radiotherapy system and a corresponding method for localizing and tracking a tumor in the anatomy of a patient undergoing radiotherapy treatment are presented. Specifically, during radiotherapy treatment planning, multiple 3D magnetic resonance images (MRI) or 4D MRI images are captured. The exact location of a target (eg, a tumor in a patient's anatomy) can be determined by the radiation therapy system using segmentation techniques known in the art. After the location of the tumor is determined, the system can generate multiple image patches and can determine the offset from the center of the image patch to the tumor. The radiation therapy system can use various methods such as correlation or techniques using appearance models to enhance selected features of multiple image patches, which result in multiple adaptive filter models. These adaptive filter models can then be used by the radiotherapy system during the actual "online" treatment o...

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PUM

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Abstract

The present disclosure relates to systems, methods, and computer-readable storage media for segmenting medical image. Embodiments of the present disclosure may locate a target in a three-dimensional (3D) volume. For example, an image acquisition device may provide a 3D medical image containing a region of interest of the target. A processor may then extract a plurality of two-dimensional (2D) slices from the 3D image. The processor may also determine a 2D patch for each 2D slice, wherein the 2D patch corresponds to an area of the 2D slice associated with the target. The processor may also convert the 2D patch to an adaptive filter model for determining a location of the region of interest.

Description

[0001] Cross references to related patent applications [0002] This patent application and the case filed on January 28, 2015 entitled "Three Dimensional Localization and Tracking for Adaptive Radiation Therapy" ("Three Dimensional Localization and Tracking for Adaptive Radiation Therapy") and the attorney's case number is 12475.0059-00000 Related, the entire contents of this case are incorporated herein by reference. technical field [0003] The present disclosure generally relates to radiation therapy or radiotherapy. More specifically, the present disclosure relates to systems and methods for three-dimensional tracking of tumors used in planning radiation therapy treatments to be used during radiation therapy. Background technique [0004] Radiation therapy is used to treat cancer or other diseases in the tissues of mammals, such as humans and animals. One such radiation therapy technique is the "Gamma Knife", by which the patient is irradiated with a large number of l...

Claims

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Application Information

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IPC IPC(8): A61N5/10G06T7/11G06T7/73G06T11/00
CPCG06T2207/10072G06T7/74A61N5/1037A61N5/1039G06T7/277G06V10/40G06T11/003G06T2211/428G06T7/11G06T7/0012
Inventor 韩骁周燕
Owner ELEKTA AB
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