阅读说明：本技术 患者移动状态的检测方法、装置及系统 (Method, device and system for detecting movement state of patient ) 是由 苟天昌 闫浩 李金升 于 2019-09-27 设计创作，主要内容包括：一种患者移动状态的检测方法、装置及系统。方法可以获取患者在摆位完成初始的第一参考坐标信息,可以获取患者在放射治疗过程中的第一坐标信息,且可以根据第一坐标信息和第一参考坐标信息确定患者的移动状态。因此可以在放射治疗的过程中,及时判断患者是否发生移动,即实现对患者的移动进行追踪,相应的,可以有效避免因患者发生移动,而导致放射线照射到其他正常器官,造成其他正常器官被误照射而出现损伤的问题。放射治疗精度较高。(A method, a device and a system for detecting the moving state of a patient are provided. The method can acquire first reference coordinate information of the patient after the patient is placed, can acquire the first coordinate information of the patient during the radiotherapy treatment, and can determine the moving state of the patient according to the first coordinate information and the first reference coordinate information. Therefore, whether the patient moves or not can be judged in time in the radiation treatment process, namely the movement of the patient is tracked, and accordingly the problem that the other normal organs are damaged due to mistaken irradiation caused by radiation irradiation to other normal organs due to the fact that the patient moves can be effectively solved. The radiation therapy precision is higher.)

A method of detecting a patient movement state, the method comprising:

Acquiring first reference coordinate information and first coordinate information of a patient, wherein the first reference coordinate information is initial position information of the patient when the positioning of the patient is finished, the first coordinate information is current position information of the patient in a radiation treatment process of the patient, and coordinate systems of the first coordinate information and the first reference coordinate information are both infrared system coordinate systems;

and determining whether the patient moves according to the first coordinate information and the first reference coordinate information.

The method of claim 1, further comprising: and performing treatment management on the patient according to the movement condition of the patient.

The method of claim 2, wherein the therapy management of the patient based on the patient's mobility comprises:

when the movement condition of the patient meets a preset condition, performing treatment management on the patient;

the preset conditions include: the duration of movement of the patient is in the medium or high threshold region; alternatively, the patient's movement deviation is located in a medium or high threshold region.

The method of claim 3, wherein the patient's movement bias is: deviation between second coordinate information and second reference coordinate information, wherein the second coordinate information is obtained after coordinate conversion is carried out on the first coordinate information, the second reference coordinate information is obtained after coordinate conversion is carried out on the first reference coordinate information, and coordinate systems where the second coordinate information and the second reference coordinate information are located are both coordinate systems of the treatment couch;

Alternatively, the patient's movement deviation is: a deviation between the first coordinate information and first reference coordinate information;

alternatively, the patient's movement deviation is: and third coordinate information, wherein the third coordinate information is deviation coordinate information obtained by performing coordinate conversion on a deviation between the first coordinate information and the first reference coordinate information, and a coordinate system where the third coordinate information is located is the coordinate system of the treatment couch.

The method according to claim 3, wherein the therapy management of the patient when the movement condition of the patient meets a preset condition comprises:

if the movement deviation of the patient is located in a middle threshold area, and/or the duration of the movement of the patient is located in the middle threshold area, sending out warning information, wherein the warning information is used for warning a treating physician to perform movement guidance on the patient;

and if the movement deviation of the patient is located in a high threshold area, and/or the duration of the movement of the patient is located in the high threshold area, sending instruction stopping information, wherein the instruction stopping information is used for controlling the stopping of the radiation therapy.

The method of any one of claims 1 to 5, wherein the obtaining first reference coordinate information of the patient comprises:

When the positioning is finished, acquiring coordinates of a marking reference object preset on the body surface of a patient, and determining the coordinates of the marking reference object on the body surface of the patient as first reference coordinate information;

or, when the positioning is completed, acquiring coordinates of a marking reference object preset on a fixing device for fixing the patient, and determining the coordinates of the marking reference object on the fixing device as the first reference coordinate information.

The method of claim 6, wherein the number of marker references on the surface of the patient is one or more.

The method according to any one of claims 3 to 5, further comprising: displaying the movement deviation of the patient.

The method of claim 8, wherein the displaying the patient's movement deviation comprises: displaying the movement deviation of the patient within a preset time period.

The method according to claim 8 or 9, characterized in that the method further comprises:

displaying at least one of the movement deviations of the patient in the X-axis, Y-axis and Z-axis directions, wherein the X-axis, the Y-axis and the Z-axis are orthogonal in pairs.

The method of claim 10, further comprising: and displaying the movement deviation of the patient by using at least one of a deviation value, a discrete point and a connecting line mode.

An apparatus for detecting a patient movement state, the apparatus comprising:

the system comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring first reference coordinate information and first coordinate information of a patient, the first reference coordinate information is initial position information of the patient when the positioning of the patient is finished, the first coordinate information is current position information of the patient in the process of carrying out radiotherapy on the patient, and coordinate systems of the first coordinate information and the first reference coordinate information are both infrared system coordinate systems;

and the determining module is used for determining whether the patient moves according to the first coordinate information and the first reference coordinate information.

The apparatus of claim 12, further comprising:

and the management module is used for carrying out treatment management on the patient according to the movement condition of the patient.

The apparatus of claim 13, wherein the management module comprises:

the management submodule is used for carrying out treatment management on the patient when the movement condition of the patient meets a preset condition;

the preset conditions include: the duration of movement of the patient is in the medium or high threshold region; alternatively, the patient's movement deviation is located in a medium or high threshold region.

A system for detecting a patient movement state, the system comprising:

infrared locating means and means for detecting the movement of the patient according to any one of claims 12 to 14 in communicative connection with said infrared locating means;

the infrared positioning device is used for detecting first reference coordinate information and first coordinate information of the patient under the control of the detection device of the patient moving state, and sending the first reference coordinate information and the first coordinate information to the detection device of the patient moving state.

The system of claim 15, wherein the infrared positioning device comprises: at least one infrared position sensor, the system further comprising: the infrared light reflection device comprises a mark reference object which is arranged on the surface of a patient or a fixing device for fixing the patient in advance, wherein an infrared light reflection material is coated on the mark reference object;

the infrared position sensor is used for emitting infrared light to the marked reference object, receiving the infrared light reflected by the marked reference object, and detecting the first reference coordinate information and the first coordinate information according to the received infrared light.

The system of claim 16, wherein each of the infrared position sensors comprises: two cameras and two infrared signal generators;

the infrared signal generator is used for emitting infrared light to the marked reference object;

the camera is used for receiving the infrared light reflected by the marked reference object.

The system of claim 16, wherein the shape of the marker reference is spherical.

An apparatus for detecting a patient movement state, the apparatus comprising: a processor and a memory, the memory having stored therein instructions that are loaded and executed by the processor to implement the method of detecting a patient movement state according to any one of claims 1 to 11.

A storage medium having stored therein instructions which, when run on a processing component, cause the processing component to execute the method of detecting a patient movement state according to any one of claims 1 to 11.