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Medical image processing device, medical image processing method and program

A medical image and processing device technology, which is applied in image data processing, image enhancement, image analysis, etc., and can solve problems such as longer processing time and difficult tumor tracking.

Active Publication Date: 2020-11-17
TOSHIBA FUEL CELL POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, a plurality of partial images are cut out from the fluoroscopic image, for example, by raster scanning, and the plurality of partial images are classified as tumor or non-tumor by an identifier, so the processing time becomes long, and sometimes it is difficult to apply Tracking the position of tumors that require real-time performance

Method used

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  • Medical image processing device, medical image processing method and program
  • Medical image processing device, medical image processing method and program
  • Medical image processing device, medical image processing method and program

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Experimental program
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no. 1 approach

[0034] figure 1 It is a configuration diagram of the treatment system 1 including the medical image processing apparatus 100 . The treatment system 1 includes, for example, a treatment device 10 and a medical image processing device 100 .

[0035] The treatment device 10 includes, for example, a bed 11 , radiation sources 12 - 1 , 12 - 2 , detectors 13 - 1 , 13 - 2 , and a treatment device side control unit 20 . Hereinafter, the hyphen and the numeral following the hyphen in the reference numerals indicate which radiation source and detector set the fluoroscopy radiation or fluoroscopic image is based on. The hyphens in the reference signs and the numbers following the hyphens are appropriately omitted for description.

[0036] The patient P who is being treated is fixed on the couch 11 . The radiation source 12-1 irradiates the patient P with radiation r-1. The radiation source 12-2 irradiates the patient P with radiation r-2 from an angle different from that of the radia...

no. 2 approach

[0096] Hereinafter, a second embodiment will be described. A medical image processing apparatus 100A according to the second embodiment will be described. In the following description, parts having the same functions as those described in the first embodiment are denoted by the same names and reference numerals, and specific descriptions of the functions are omitted.

[0097] Figure 10 It is a block diagram showing the configuration of the moving object tracking device 120A. Figure 10 The moving body tracking device 120A and image 3 The mobile object tracking device 120 of the first embodiment shown is different in that it includes a reliability derivation unit 125 , a second estimation unit 126 , a determination unit 127 , and a storage unit 128 . Therefore, the following description will focus on the reliability derivation unit 125 , the second estimation unit 126 , the determination unit 127 , and the storage unit 128 .

[0098] The reliability deriving unit 125 deri...

no. 3 approach

[0112] Hereinafter, a third embodiment will be described. A moving object tracking device 120B according to the third embodiment will be described.

[0113] Figure 15 It is a block diagram showing the configuration of a moving object tracking device 120B according to the third embodiment. The following description will focus on differences between the moving object tracking device 120A of the second embodiment and the moving object tracking device 120B of the third embodiment.

[0114] The second estimation unit 126 of the moving object tracking device 120B estimates the target position in the second image based on the second image output from the second image acquisition unit 121 and the reliability output from the reliability derivation unit 125, and updates the target position in the second image. The estimation unit 126 estimates the estimation parameters required for the target position, and outputs the estimation result to the determination unit 127 . In general, sin...

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Abstract

A medical image processing device according to an embodiment has a first position acquisition unit, a first conversion unit, a first likelihood image generation unit, and a learning unit. The first position acquisition unit acquires a target position in each of a plurality of first images as a first position. The first conversion unit converts the first positions to second positions by expanding the movement over time of the first positions in a second direction which intersects a first direction in which the amount of movement is larger. The first likelihood image generation unit generates afirst likelihood image showing the distribution of likelihood of the second positions by using the second positions as references. The learning unit outputs a model which uses the plurality of first images and the first likelihood image as teacher data and, when receiving a part or the entirety of a perspective image, derives a second likelihood image showing the distribution of likelihood indicating the probability that the part or the entirety of the perspective image corresponds to the second positions.

Description

technical field [0001] Embodiments of the present invention relate to a medical image processing device, a medical image processing method, and a program. [0002] This application claims priority based on Japanese Patent Application No. 2018-075024 filed in Japan on April 9, 2018, the contents of which are cited here. Background technique [0003] Conventionally, radiation therapy methods for irradiating a patient's tumor with radiation have been disclosed. Radiation needs to be delivered exactly where the tumor is. This is because, when radiation is irradiated to normal tissues in the patient's body, the normal tissues may be affected. Therefore, computed tomography (CT) imaging is performed in advance to grasp the position of the tumor in the patient's body three-dimensionally, and the direction and intensity of irradiation are planned so as to reduce irradiation to normal tissues. In radiation therapy, in order to irradiate radiation according to the treatment plan, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/4266G06T2207/10124G06T2207/20081G06T2207/20084G06T2207/30096G06T7/0012G06T7/262A61B6/5217A61B6/12A61N5/1049A61N5/1067A61N2005/1061A61N2005/1051G06T2207/10116G06T7/00A61N5/103A61N2005/1062G06T2207/10081
Inventor 平井隆介谷泽昭行森慎一郎冈屋庆子
Owner TOSHIBA FUEL CELL POWER SYST