JP2012228387A - Measuring unit, program, tomography system, tomography apparatus, and network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a network system for making a plurality of devices connected to a network independently display the time change of a feature amount indicating the biological activity of a subject, which is measured by a measuring unit such as an electrocardiograph, while suppressing design loads on the measuring unit.SOLUTION: The measuring unit continuously transmits measurement data to all of the plurality of devices during a period of receiving a transmission request from at least one of the plurality of devices. While the measuring unit is often design to transmit the measurement data to a single device and is not good at complicated control of switching start/stop of transmission of the measurement at independent timing for each of the plurality of devices, in the manner, the measurement data is transmitted to the device requesting the transmission by return without such complicated control.

Description

  The present invention relates to a measuring device that measures a feature amount indicating a biological activity or a biological state of a subject, a program therefor, a tomography system including the measuring device, and a tomography that constitutes the tomography system The present invention relates to a device and a network system including the measuring device.

  Like an electrocardiograph or respiratory phase monitoring (monitoring) device, it measures the feature quantity that indicates the biological activity and state of the subject, and displays the temporal change (waveform) of the feature quantity on the monitor ( monitor) and various measuring devices for displaying on an externally connected monitor are known.

  Although such a measuring device may be used alone, the measurement data (data) is transmitted to another device connected to the measuring device over a network, and the time change is provided in the device. There are cases that are displayed on the monitor. In this case, the measurement device continuously transmits measurement data to the device during a period in which a transmission request is received from another device.

  As the above case, for example, as shown in FIG. 3, an electrocardiograph and an operation console (console) of the X-ray CT apparatus are connected to the network, and electrocardiogram data is transmitted from the electrocardiograph to the operation console. A system for displaying the electrocardiographic waveform of the subject on the monitor of the operation console is conceivable (see, for example, [0066] to [0068] in Patent Document 1 and FIG. 1).

  In this system, the operator refers to the electrocardiogram waveform on the operation console, confirms the state of the subject, and sets imaging conditions such as imaging timing (timing) in electrocardiogram synchronous imaging. .

JP 2009-28111 A

  By the way, in recent years, there is an increasing number of cases where it is desired to separately provide measurement data of such a measurement apparatus to a plurality of devices connected to a network.

  For example, as shown in FIG. 4, an electrocardiograph is connected to a scanning gantry with an operation console and a monitor constituting an X-ray CT apparatus, and electrocardiogram data from the electrocardiograph is attached with the operation console and the monitor. There may be a case where an electrocardiogram waveform is transmitted to both of the scanning gantry and displayed on each monitor.

  In this case, the operator on the operation console side refers to the electrocardiogram waveform, confirms the state of the subject, and sets imaging conditions such as imaging timing. Further, the operator on the scanning gantry side refers to the electrocardiogram waveform to confirm whether there is an abnormal attachment of the electrode part of the electrocardiograph or to confirm the state of the subject. Therefore, there is an independent timing for displaying an electrocardiogram waveform on the operation console side and a timing for displaying an electrocardiogram waveform on the scanning gantry side. That is, the transmission request from the operation console to the electrocardiograph and the transmission request from the scanning gantry to the electrocardiograph are independently and asynchronously performed.

  Therefore, in such a case, for example, as shown in FIG. 5, a measurement device such as an electrocardiograph measures measurement data in response to a transmission request (command) from each of a plurality of devices such as an operation console and a scanning gantry. This requires complicated control of switching the start / stop of transmission at independent timing.

  However, many measuring devices such as electrocardiographs are not originally assumed to be connected to a plurality of devices over a network and transmit measurement data independently to each other. For this reason, if the measurement apparatus is to perform the complicated control as described above, a significant design change is required, which increases the cost and the number of steps.

  Due to such circumstances, the measurement device that measures the feature amount indicating the biological activity or the biological state of the subject and a plurality of devices are connected to the network, and the measurement data is transmitted from the measurement device to the plurality of devices. It is desired to realize a system that displays time changes independently while suppressing the design load on the measuring device.

  The invention according to the first aspect is a measuring device that measures a characteristic amount indicating a life activity or a life state of a subject and outputs the measurement data, and the measurement is performed from a plurality of devices connected to the measuring device through a network. Receives transmission requests over a desired period of data independently, and continuously transmits measurement data to all of the plurality of devices during a period in which measurement data transmission requests are received from at least one of the plurality of devices. A measuring device for transmission is provided.

  The invention according to the second aspect recognizes the plurality of devices in advance, and transmits the measurement data to all the recognized devices when transmitting the measurement data. I will provide a.

  According to a third aspect of the present invention, in the first aspect or the second aspect, the plurality of devices each display a temporal change in the feature amount based on measurement data received while making a transmission request. A measuring device is provided.

  According to a fourth aspect of the present invention, there is provided a measurement data in which a period from when each of the plurality of devices transmits a transmission start command (command) to the measurement device until a transmission stop command is transmitted is defined as the desired period. A measurement device according to any one of the first to third aspects is provided.

  A fifth aspect of the invention provides a measurement apparatus according to any one of the first to fourth aspects, wherein the measurement data is transmitted by a data stream method.

  The invention according to a sixth aspect provides the measurement apparatus according to any one of the first to fifth aspects, wherein the feature amount represents a signal value of an electrocardiogram.

  The invention according to a seventh aspect provides the measuring device according to any one of the first to fifth aspects, wherein the feature amount represents a respiratory phase.

  The invention according to an eighth aspect provides the measuring device according to any one of the first to fifth aspects, wherein the feature amount represents an injection pressure of a drug solution to be administered.

  According to a ninth aspect of the present invention, in the first aspect, the feature amount represents an electroencephalogram, electromyogram, nystagmus, magnetocardiogram, magnetoencephalogram, or magnetoencephalogram signal value, body temperature, or blood flow velocity or quantity. From the above viewpoint, the measuring device according to any one of the fifth aspect is provided.

  The invention of the tenth aspect provides a program for causing a computer to function as the measuring device according to any one of the first to ninth aspects.

The eleventh aspect of the invention is a measurement device that measures a characteristic amount indicating a biological activity or a biological state of a subject and outputs the measurement data, and is connected to the measurement device via a network, and has an operation console and a gantry. A tomography system comprising a tomography apparatus,
Each of the operation console and the gantry has a monitor, makes a transmission request for measurement data to the measurement device independently in a desired period, and displays a temporal change in the feature amount based on the input measurement data. A tomography system that continuously transmits measurement data to both the operation console and the gantry during a period in which the measurement apparatus receives a transmission request from at least one of the operation console and the gantry.

  The invention according to a twelfth aspect provides the tomography system according to the eleventh aspect, wherein the tomography apparatus is an X-ray CT apparatus.

  The invention according to a thirteenth aspect provides the tomography system according to the eleventh aspect, wherein the tomography apparatus is an MR apparatus.

  The invention of the fourteenth aspect provides a tomography apparatus that constitutes the tomography system of any one of the eleventh to fourteenth aspects.

  A fifteenth aspect of the invention includes a measurement device that measures a feature amount indicating a biological activity or a biological state of a subject and outputs the measurement data, and a plurality of devices connected to the measurement device via a network. In the network system, each of the plurality of devices has a monitor, and makes a transmission request for measurement data to the measurement device independently in a desired period. Based on the input measurement data, A network system for displaying a time change and continuously transmitting measurement data to all of the plurality of devices during a period in which the measurement device receives a transmission request from at least one of the plurality of devices. provide.

  According to the invention of the above aspect, the measurement device transmits measurement data to all devices if any of a plurality of devices requests transmission. Therefore, the measurement data is transmitted at an independent timing for each device. Measurement data can be sent to the requesting device at substantially the same timing without complicated control of switching between start / stop of the device, and the measurement device and multiple devices can be connected to the network. Thus, it is possible to realize a system that transmits measurement data from a measurement device to a plurality of devices and independently displays temporal changes in feature amounts while suppressing a design load on the measurement device.

It is a figure which shows the structure of the subject monitoring system by this embodiment. It is a timing chart of the command to the electrocardiograph and the data transmission from the electrocardiograph in the subject monitoring system of the present embodiment. It is a figure which shows the structure of the conventional subject monitoring system. It is a figure which shows the reference example of the subject monitoring system to which the some display means which displays an electrocardiogram each independently is connected. 5 is a timing chart of a command to the electrocardiograph and data transmission from the electrocardiograph in the subject monitoring system according to the reference example.

  Embodiments of the invention will be described below.

  FIG. 1 is a diagram showing a configuration of a tomography system according to the present embodiment.

  The tomography system shown in FIG. 1 includes an electrocardiograph 10, an X-ray CT apparatus having an operation console 20 and a scanning gantry 30 with a monitor, and a network 40 connecting them. The X-ray CT apparatus also includes an imaging table (table), which is not shown in FIG.

  The electrocardiograph 10, the scanning gantry 30, and an imaging table (not shown) are installed in an examination room, and the operation console 20 is installed in an operation room different from the examination room.

  The electrocardiograph 10 measures an electrocardiogram waveform (electrocardiogram) indicating a heartbeat movement that is one of the biological activities of the subject 50.

  The electrocardiograph 10 includes an electrode unit 11, a data generation unit 12, and a communication control unit 13.

  The electrode unit 11 is attached to the subject 50 and detects an electrocardiographic signal that is an electrical signal of the heart.

  The data generation unit 12 generates electrocardiogram data that is digital data based on the electrocardiogram signal detected by the electrode unit 11.

  The electrocardiograph communication control unit 13 communicates with the outside via a network to send and receive commands and various data. In particular, the communication control unit 13 of the electrocardiograph continuously transmits the electrocardiogram data by the data stream method during a period in which the electrocardiogram data transmission request is received from at least one of the operation console 20 and the scanning gantry 30. In addition, the communication control unit 13 of the electrocardiograph recognizes the operation console 20 and the scanning gantry 30 in advance, and when transmitting the electrocardiogram data, substantially all the recognized devices have the same timing. Send ECG data.

  The operation console 20 sets X-ray CT imaging conditions and tomographic image generation conditions according to the operation of the operator, and controls the scanning gantry 30 and the imaging table according to the imaging conditions, or according to the tomographic image generation conditions. A tomographic image is generated based on the projection data received from the scanning gantry 30.

  The operation console 20 includes a communication control unit 21, a display control unit 22, and a monitor 23.

  The communication control unit 21 of the operation console communicates with the outside via the network 40 to send and receive commands and various data. In particular, the communication control unit 21 of the operation console transmits a “transmission start command” and a “transmission stop command” to the electrocardiograph 20, transmits a “transmission start command”, and then transmits a “transmission stop command”. Electrocardiogram data transmission request is made with the period until the transmission of. Further, the communication control unit 21 of the operation console receives the electrocardiogram data transmitted by the communication control unit 13 of the electrocardiograph.

  The display control unit 22 of the operation console controls the monitor 23 to display a predetermined image and information on the monitor 23. In particular, the display control unit 22 of the operation console causes the monitor 23 to display the electrocardiogram waveform based on the electrocardiogram data received by the communication control unit 21 in response to the display request of the electrocardiogram waveform of the subject 50 by the operator. .

  The display request of the electrocardiogram waveform on the operation console side refers to, for example, the electrocardiogram waveform of the subject 50 or the electrocardiogram waveform when the operator sets the imaging timing in the electrocardiogram synchronous imaging as the imaging condition. This is performed when the shooting timing is set by the GUI or the like.

  It should be noted that here, only during the period when the operator has requested to display the electrocardiogram waveform on the operation console side, the communication control unit 21 of the operation console makes a transmission request for the electrocardiogram data to the electrocardiograph 10, and the electrocardiogram data. The display control unit 22 of the operation console displays the electrocardiogram waveform on the monitor 23 based on the received electrocardiogram data only during the synchronization.

  The scanning gantry 30 collects projection data by performing X-ray CT imaging of the subject 50 placed on the imaging table, and transmits it to the operation console.

  Similar to the operation console 20, the scanning gantry 30 includes a communication control unit 31, a display control unit 32, and a monitor 33.

  The communication control unit 31 of the scanning gantry communicates with the outside via the network 40 to send and receive commands and various data. In particular, the communication control unit 31 of the scanning gantry transmits a “transmission start command” and a “transmission stop command” to the electrocardiograph 20, transmits a “transmission start command”, and then transmits a “transmission stop command”. ”Is sent as a request period. The transmission request by the scanning gantry 30 is made independently of the transmission request by the operation console 20. Further, the communication control unit 31 of the scanning gantry receives the electrocardiogram data transmitted by the communication control unit 13 of the electrocardiograph.

  The display control unit 32 of the scanning gantry controls the monitor 33 to display a predetermined image and information on the monitor 33. In particular, the display control unit 32 of the scanning gantry causes the monitor 33 to display the electrocardiogram waveform based on the electrocardiogram data received by the communication control unit 31 in response to the display request of the electrocardiogram waveform of the subject 50 by the operator. .

  The display request of the electrocardiogram waveform on the scanning gantry side is, for example, when the operator wears the electrode unit 11 of the electrocardiograph 10 on the subject 50 and checks whether there is an abnormality in the wearing, It is performed when checking whether there is an abnormal state in 40 or whether it is in an extreme tension state.

  It should be noted that, here, only during the period when the operator requests to display the electrocardiogram waveform on the scanning gantry side, the communication control unit 31 of the scanning gantry makes a transmission request of the electrocardiogram data to the electrocardiograph 10 and the electrocardiogram data. The display control unit 32 of the operation gantry causes the monitor 33 to display the electrocardiogram waveform represented by the received electrocardiogram data only during the same period.

  The network 40 is constructed by, for example, the Ethernet (registered trademark) standard. As a communication protocol (protocol), TCP / IP with high reliability is generally used, but UDP may also be used. The connection may be either wired or wireless. In the case of wired connection, for example, the electrocardiograph 10, the operation console 20, and the scanning gantry 30 are connected using a hub (HUB) or a network cable.

  An example of logic for starting / stopping the transmission of electrocardiogram data by the electrocardiograph 10 will be described.

  FIG. 2 is a timing chart of transmission of transmission start (Start) command and transmission stop (Stop) command to the electrocardiograph from the operation console and the scanning gantry, and start / stop of transmission of electrocardiogram data from the electrocardiograph. It is.

  The logic for starting / stopping the transmission of electrocardiogram data by the electrocardiograph 10 is, for example, as follows.

[Start of ECG data transmission]
When receiving the “transmission start command” from the operation console 20 “or” the scanning gantry 30, the electrocardiograph 10 starts transmitting the electrocardiogram data to both the operation console 20 “and” the scanning gantry 30.

[Stop transmission of ECG data]
The electrocardiograph 10 stops the transmission of the electrocardiogram data when any of the following conditions is satisfied.

  1. The transmission of the electrocardiogram data is started by the reception of the “transmission start command” from the operation console 20, and the “transmission start command” from the operation gantry 30 is not received during the transmission of the electrocardiogram data. The “transmission stop command” is received (first case in FIG. 2).

  2. The transmission of the electrocardiogram data is started by the “transmission start command” from the scanning gantry 30, and the “transmission start command” from the operation console 20 is not received during the transmission of the electrocardiogram data. The “transmission stop command” is received (second case in FIG. 2).

  3. The transmission of the electrocardiogram data is started by reception of the “transmission start command” from one of the operation console 20 and the scanning gantry 30, and “transmission” from the other of the operation console 20 and the scanning gantry 30 is performed during the transmission of the electrocardiogram data. "Start command" was received, and "Transmission open stop command" was received from both the operation console 20 and the scanning gantry 30 (third and fourth cases in FIG. 2).

  According to the present embodiment, the electrocardiograph 10 substantially applies to both the operation console 20 and the scanning gantry 30 if either the operation console 20 or the scanning gantry 30 with a monitor requests transmission. Since the measurement data is transmitted at the same timing, the display means for requesting transmission without performing complicated control of switching the start / stop of transmission of the electrocardiogram data at an independent timing for each means for displaying the electrocardiogram waveform Therefore, a system that can transmit the electrocardiogram data to the electrocardiogram and display the electrocardiogram waveform of the subject 50 independently on a plurality of display devices can be realized while suppressing the design load on the electrocardiograph 10.

  As a result, a significant design change of the electrocardiograph 10 is not necessary, and development costs, man-hours can be reduced, and the reliability of the electrocardiograph 10 and the entire system can be maintained.

  In particular, in recent years, in an apparatus including an operation console and a gantry such as an X-ray CT apparatus, a type in which a monitor is provided on the gantry has been increasing. There is a growing need for independent display. In such a situation, the effect that the design load on the measuring apparatus can be suppressed as in this embodiment is very large.

  As mentioned above, although embodiment of invention was described, embodiment of invention is not limited to said thing, In the range which does not deviate from the meaning of invention, various forms can be taken.

  For example, instead of the electrocardiograph 10, a respiratory phase monitoring device that measures a respiratory phase that is a characteristic amount indicating the biological activity of the subject 50 and outputs respiratory phase data may be used. Further, instead of the electrocardiograph 10, a medical solution such as a contrast agent to be administered to the subject 50 is injected into the subject 50, and the injection pressure that is a characteristic amount indicating the biological state of the subject 50 is measured, It is good also as an injector which outputs injection pressure data. Alternatively, in place of the electrocardiograph 10, another living body measurement apparatus may be used to measure the characteristic amount, such as an electroencephalogram, electromyogram, nystagmus, magnetocardiogram, magnetoencephalogram, or magnetoencephalogram signal value, body temperature, Alternatively, the measurement data may be output with the velocity or amount of blood flow.

  Further, for example, a plurality of devices for displaying an electrocardiogram waveform or the like may include an operation console and a gantry with a monitor constituting the MR apparatus, or a plurality of viewers (viewers) mainly displaying predetermined images and waveforms. May be included.

  Further, for example, a program for causing a computer to function as a measuring device such as the electrocardiograph 10 is also an embodiment of the invention.

10 ECG (measuring device)
DESCRIPTION OF SYMBOLS 11 Electrode part 12 Data generation part 13 Communication control part 20 Operation console 21 Communication control part 22 Display control part 23 Monitor 30 Scan gantry 31 Communication control part 32 Display control part 33 Monitor 40 Network 50 Subject

Claims (15)

A measuring device that measures a characteristic amount indicating a life activity or a life state of a subject and outputs the measurement data,
From a plurality of devices connected to the measurement device over a network, each transmission request for a desired period of measurement data is independently received,
A measurement apparatus that continuously transmits measurement data to all of the plurality of devices during a period in which a measurement data transmission request is received from at least one of the plurality of devices.   The measurement apparatus according to claim 1, wherein when the plurality of devices are recognized in advance and measurement data is transmitted, the measurement data is transmitted to all the recognized devices.   The measuring device according to claim 1, wherein each of the plurality of devices displays a temporal change in the feature amount based on measurement data received while performing a transmission request.   The plurality of devices each make a transmission request for measurement data by setting a period from when a transmission start command is transmitted to the measurement device to when a transmission stop command is transmitted as the desired period. The measuring device according to any one of the above.   The measurement apparatus according to claim 1, wherein the measurement data is transmitted by a data stream method.   The measuring device according to claim 1, wherein the feature amount represents an electrocardiogram signal value.   The measurement apparatus according to claim 1, wherein the feature amount represents a respiratory phase.   The measuring device according to claim 1, wherein the characteristic amount represents an injection pressure of a drug solution to be administered.   6. The feature amount represents an electroencephalogram, electromyogram, nystagmus, magnetocardiogram, magnetoencephalogram, or magnetoencephalogram signal value, body temperature, or blood flow velocity or quantity. The measuring device according to item.   The program for functioning a computer as a measuring device as described in any one of Claims 1-9. A measurement device that measures a feature amount indicating a biological activity or a biological state of a subject and outputs the measurement data, and a tomography apparatus connected to the measurement device via a network and having an operation console and a gantry A tomography system provided,
Each of the operation console and the gantry has a monitor, makes a request for transmission of measurement data to the measurement device independently in a desired period, and displays a temporal change in the feature amount based on the input measurement data. ,
The tomography system in which the measurement device continuously transmits measurement data to both the operation console and the gantry during a period in which a transmission request is received from at least one of the operation console and the gantry.   The tomography system according to claim 11, wherein the tomography apparatus is an X-ray CT apparatus.   The tomography system according to claim 11, wherein the tomography apparatus is an MR apparatus.   The tomography apparatus which comprises the tomography system as described in any one of Claims 11-14. A network system including a measurement device that measures a feature amount indicating a biological activity or a biological state of a subject and outputs the measurement data, and a plurality of devices connected to the measurement device via a network,
Each of the plurality of devices has a monitor, performs a measurement data transmission request to the measurement device independently in a desired period, and displays a temporal change in the feature amount based on the input measurement data.
The measurement system is a network system that continuously transmits measurement data to all of the plurality of devices during a period in which a transmission request is received from at least one of the plurality of devices.

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