CN202489950U

CN202489950U - Magnetic resonance system

Info

Publication number: CN202489950U
Application number: CN2011205570395U
Authority: CN
Inventors: 卢智博
Original assignee: Shanghai United Imaging Healthcare Co Ltd
Current assignee: Shanghai United Imaging Healthcare Co Ltd
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-10-17
Anticipated expiration: 2021-12-28

Abstract

The utility model discloses a magnetic resonance system which includes a magnetic resonance device, a control computer, and a physical sign detector. The magnetic resonance system can rapidly acquire the physical sign information of a patient, and adjust the nuclear magnetic resonance scanning conditions which are suitable for the patient. The magnetic resonance system is reliable and accurate, and can save the working hours of a doctor.

Description

A kind of magnetic resonance system

Technical field

This utility model belongs to the magnetic resonance imaging technical field, particularly a kind of magnetic resonance system of automatic measuring patient sign information.

Background technology

In magnetic resonance imaging, in order to obtain diagnostic image accurately, and guarantee patient's safety, patient's sign information (like height, body weight, body temperature, posture etc.) is necessary.

For example, need launch radio-frequency pulse to the patient during magnetic resonance imaging, the electromagnetic energy of part will be converted into ohm heat, be deposited in the human body.In order to describe the endergonic situation of patient's each several part (like whole body, head, trunk, extremity etc.) quantitatively, unified in the world this index of specific absorption rate (SAR, the W/kg of unit) that adopts.Wherein, gross energy can be obtained through calculating directly, and the Energy distribution of each several part and weight adopt the anthropometric dummy match to obtain usually.Therefore, accurate height of patient and/or body weight are directly related with the accurate Calculation of SAR.The Energy distribution of patient body each several part and weight normally adopt the anthropometric dummy match to obtain; Therefore often need to obtain in advance or simultaneously patient's dependent body reference breath; Such as; In order to describe the endergonic situation of patient's each several part (like whole body, head, trunk, extremity etc.) quantitatively, information such as needs collection patient's height, body weight.Accurate height and/or body weight information can be directly related with the accurate Calculation of absorbance SAR (W/kg of unit).Inaccurate height and/or body weight information, will cause patient's actual reception to RF energy be not inconsistent with the result who calculates gained, actual reception value is too high possibly to cause patient fractional radio frequency to burn, and crosses and hangs down the application that then possibly limit some sequence.

In magnetic resonance imaging, the method that obtains patient's height and weight mainly is to inquire the patient or adopt traditional scale weighing through the doctor at present, registers input information in the page in HIS/RIS system or magnetic resonance system patient by hand.In this case, the reliability of the data of collection and accuracy can not be guaranteed, and have spent doctor's inquiry and time registered simultaneously.

The defective that exists in the prior art does, before magnetic resonance imaging, and the acquisition inaccuracy of patient's sign information such as height, body weight and the defectives such as overlong time that obtain those information.

The utility model content

The purpose of this utility model is; A kind of magnetic resonance system is provided; Patient's sign information is measured automatically and measurement data is calibrated, thereby guarantee the patient before accepting nuclear magnetic resonance, NMR, the reliability of sign information and accuracy; Make the sign information acquisition convenient more, save doctor's inquiry and time registered.

This utility model provides a kind of magnetic resonance system, comprises magnetic resonance equipment, Control Computer, sign detector; Wherein, said magnetic resonance equipment links to each other with said Control Computer, and said Control Computer links to each other with the sign detector.

In a kind of magnetic resonance system that this utility model provides, said sign detector comprises height detector and/or body weight detector.

In a kind of magnetic resonance system that this utility model provides, said height detector is mechanical type or photo-electric height detector.Said height detector comprises signal emitting-source, signal receiver, timer; Transmit to human body by signal emitting-source; Receive from the signal of human body reflection by signal receiver; Receive the required time of reflected signal from transmitting signals to by timer calculating.The signal of said signal emitting-source emission is infrared ray, ultrasound wave or laser.

In a kind of magnetic resonance system that this utility model provides, said body weight detector is a LOAD CELLS; Said LOAD CELLS is mechanical type, photo-electric, fluid pressure type, electromagnetic type, condenser type, magnetic pole deformation type, vibration type, gyro ceremony or resistance strain weighing transducer.

In a kind of magnetic resonance system that this utility model provides, further include detector control and post-processing unit.

In a kind of magnetic resonance system that this utility model provides, preferred, said sign detector is arranged on the magnetic resonance equipment.

The sign detector is meant and is used for device that the life of individual patients or health or physiological feature are detected; The characteristic such as height, body weight, body temperature, figure that comprises the patient comprises the checkout gear of height sniffer, body weight sniffer or other characteristics of individual patients.

In this utility model magnetic resonance system, through the sign detector that links to each other with Control Computer is set, like height detector, body weight detector; Before carrying out nuclear magnetic resonance scanning, obtain patient's sign information,, and use detector to carry out DATA REASONING through calibration like height, body weight information; Relevant information by the direct typing acquisition of Control Computer; Calculate and adjust accurate particular patient individual nuclear magnetic resonance scanning condition and the environment of being fit to according to accurate patient's sign, like accurate Calculation SAR, thus the reliability and the accuracy of assurance data; Make workflow convenient more, and saved doctor's inquiry and time registered.

Description of drawings

Fig. 1 is the structural representation of this utility model magnetic resonance system.

Fig. 2 is that each parts connects sketch map in this utility model magnetic resonance system.

Fig. 3 is the workflow diagram of this utility model magnetic resonance system.

Fig. 4 is the working doctor flow chart when using this utility model magnetic resonance system.

Fig. 5 is the structural representation of the height detector in this utility model magnetic resonance system.

Fig. 6 is the sketch map of another embodiment of this utility model magnetic resonance system.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the specific embodiment of this utility model is done further detailed explanation, but should not limit the protection domain of this utility model with this.

Like Fig. 1-shown in Figure 6,1-magnetic resonance equipment, 2-Control Computer, control of 3-detector and post-processing unit, 4-height detector, 5-body weight detector, 6-sign detector.

As shown in Figure 1, this utility model magnetic resonance system comprises: magnetic resonance equipment 1, Control Computer 2, and sign detector 6.Control Computer 2 links to each other with magnetic resonance equipment 1, sign detector 6 respectively.

Magnetic resonance equipment 1 carries out nuclear magnetic resonance scanning to the patient under the regulation and control of Control Computer 2.

Control Computer 2 is responsible for the state and the various operations of control magnetic resonance equipment 1 each parts, control magnetic resonance equipment 1 and the work of sign detector 6 and the transmission of data and instruction each other.The sign data that obtain via sign detector 6 are logged in the Control Computer 2 as register information.Control Computer 2 is according to the patient's sign data that obtained such as height, body weight information, and accurate Calculation is fit to the magnetic resonance imaging condition of patient's particular individual, thereby such as the RF energy that is fit to individual patients in the accurate Calculation SAR adjustment magnetic resonance imaging.

As shown in Figure 2, sign detector 6 can be height detector 4, body weight detector 5.Can also be body temperature detector, figure's detector etc.

In the present embodiment, also be provided with detector control and post-processing unit 3, detector control is arranged in the Control Computer 2 with post-processing unit 3, is one of module in the Control Computer 2.Detector control also can be arranged on the sign detectors 6 such as height detector 4 and/or body weight detector 5 with post-processing unit 3, as one of module of sign detector 6.Communication Control between detector control and post-processing unit 3 responsible Control Computer 2 and the sign detectors 6 such as height detector 4 and/or body weight detector 5, exchanges data and institute's acquired information carried out date processing.

Like Fig. 2, shown in Figure 5.Height detector 4 utilizes the principle of reflection of optics, acoustics, and reflection calculates the distance of height detector 4 to the human body crown until receiving the time of being experienced through the human body crown from emission through the detectable signal source, thereby obtains patient's human body height information.As shown in Figure 5, height detector 4 comprises signal emitting-source 41, signal receiver 42, timer 43.Signal emitting-source 41 is used for transmitting, and signal receiver 42 is used for receiving the signal of reflection; Timer 43 is connected with signal emitting-source 41, signal receiver 42 respectively, is used for calculating from signal emitting-source 41 transmitting up to the 42 reception needed times of reflected signal of signal receiver.As shown in Figure 2; Height detector 4 is arranged on directly over the patient crown; Signal emitting-source 41 is launched a signal to the patient; The signal of emission is received by signal receiver 42 from the patient crown, and timer 43 picks up counting when signal emitting-source 41 sends signal, when signal receiver 42 receives reflected signal, stops timing.Height detector 4 calculates the distance of height detector 4 to the patient crown according to the time of experience, thereby obtains the height information of human body.Height detector 4 transfers to detector control and post-processing unit 3 with the height information that obtains.Signal emitting-source 41 emission infrared signals also can be signals such as ultrasound wave, laser.Height detector 4 can also be mechanical type or other appropriate device.

Body weight detector 5 is used for measuring the weight information that obtains individual patients, and transmits it to detector control and post-processing unit 3.Body weight sensor 5 is used LOAD CELLS, can directly change quality signal into measurable signal of telecommunication output.The type of body weight sensor 5 can be mechanical type LOAD CELLS, photo-electric LOAD CELLS, fluid pressure type LOAD CELLS, electromagnetic type LOAD CELLS, capacitance weighing sensor, magnetic pole deformation type LOAD CELLS, vibration type LOAD CELLS, gyro ceremony LOAD CELLS or resistance strain weighing transducer.

Sign detector 6 like height detector 4, body weight detector 5, is installed between magnetic resonance imaging.Influence the normal magnetic field of magnetic resonance equipment 1 environment for avoiding interference; When height detector 4, body weight detector 5 be installed in maybe disturbing magnetic field the place in the time; Like scanning room, height detector 4, body weight detector 5 should use low magnetic or not have magnetic machine, and adopt the suitable equipment of electromagnetic compatibility.Height detector 4, body weight detector 5 also can be installed in the place outside the magnetic resonance imaging working region, like other fields of employment of operation room or suitable inspection patient, in these places, hang down magnetic, do not have magnetic or have magnetic machine all can use.

As shown in Figure 3, when patient's short stay in the investigative range of height detector 4, the signal emitting-source 41 of height detector 4 transmits, timer 43 work that picks up counting simultaneously.The signal of emission is reflected until the crown of individual patients, and reflected signal is received by signal receiver 42.When signal receiver 42 received reflected signal, timer 43 finished timing.So far, height detector 4 has obtained signal and has been launched into received time difference information, and with control of this information transmission to detector and post-processing unit 3.Detector control and post-processing unit 3 are converted into this time difference information the distance of transmission; Be the distance of height detector 4 to the patient crown; And these data are carried out error correction (like angle of departure correction etc.), then, from height detector 4 to foot part of patient at the bottom of distance deduct this transmitting range; Promptly obtain patient's actual height data, directly with these data as the automatic typing Control Computer 2 of patient's register information.

When patient's short stay in the investigative range of body weight detector 5, body weight detector 5 obtains patient's human body gravity, is translated into the signal of telecommunication, and with control of this information transmission to detector and post-processing unit 3.The body weight signal that detector control and 3 pairs of post-processing units receive carries out a series of error correction (like temperature characterisitic etc.), thereby obtains the ABW data of human body, and directly with these data as the automatic typing Control Computer 2 of patient's register information.

As shown in Figure 2, body weight detector 5 is positioned over ground, and the patient stand on the body weight detector 5, and height detector 4 is arranged on the top on the patient crown.When the patient stops, can carry out the measurement of height and body weight simultaneously in investigative range.Control Computer 2 is regulated and control magnetic resonance equipment 1 according to the height, the body weight information that obtain, selects to draw the RF energy that is fit to individual patients.

Like Fig. 3, shown in Figure 4, when practical application this utility model is measured the magnetic resonance system of height and weight automatically, before the patient is carried out nuclear magnetic resonance, NMR, need not of the doctor long period to patient's height, body weight inquire, measurement and record.Only need let the patient in investigative range, make a brief stay, for example in 5 seconds, can obtain the body weight height information automatically and draw the RF energy that is fit to individual patients fast.

Sign detector 6 also can be arranged on the magnetic resonance equipment 1, and is as shown in Figure 6, and height detector 4, body weight detector 5 are all disposed and be arranged on the sick bed of magnetic resonance equipment 1.At the head end and the tail end of sick bed, a height detector 4 is set respectively respectively.Height detector 4 is measured the distance of detector to the patient crown or vola respectively, thereby obtains patient's actual height.One individual weight detector 5 is set below the sick bed bed board.Body weight detector 5 also can be provided with two or more.When on the patient lies during sick bed, before magnetic resonance imaging, respectively patient's height, body weight are detected by height detector 4, body weight detector 5 earlier.

Sign detector 6 also can be arranged on other places of magnetic resonance equipment 1, and is not limited only to above-mentioned position.Sign detector 6 is set on magnetic resonance equipment 1 compares installation sign detector 6 between magnetic resonance imaging, can be so that the acquisition of sign information be more convenient.The patient only need lie on the magnetic resonance equipment, is utilized in the time of waiting for before the magnetic resonance imaging, and the sign information of obtaining the patient gets final product, and perhaps also might in magnetic resonance imaging, obtain sign information under some situation.Make the sign information acquisition convenient more, save time.

With reference to the operation principle of figure 2, the data of detector control and post-processing unit 3 direct actual heights with the patient, body weight are as the automatic typing Control Computer 2 of register information.When detecting, height detector 4, body weight detector 5 can be successively successively or simultaneously height, the body weight of measuring patient.

The preferred embodiment that the above is merely this utility model is not the practical range that is used for limiting this utility model.Have common knowledge the knowledgeable in the technical field under any, in spirit that does not break away from this utility model and scope, when doing various changes and retouching, this utility model protection domain should be as the criterion with the protection domain that claims were defined.

Claims

1. a magnetic resonance system is characterized in that, comprises magnetic resonance equipment (1), Control Computer (2), sign detector (6); Wherein, said magnetic resonance equipment (1) links to each other with said Control Computer (2); Said Control Computer (2) links to each other with said sign detector (6).

2. magnetic resonance system according to claim 1 is characterized in that said sign detector (6) is height detector (4) and/or body weight detector (5).

3. like the said magnetic resonance system of claim 2, it is characterized in that said height detector (4) comprising:

Signal emitting-source (41) transmits to human body;

Signal receiver (42) receives from the signal of human body reflection;

Timer (43), calculating receives the required time of reflected signal from transmitting signals to.

4. like the said magnetic resonance system of claim 3, it is characterized in that the signal of said signal emitting-source (41) emission is infrared ray, ultrasound wave or laser.

5. like the said magnetic resonance system of claim 2, it is characterized in that said body weight detector (5) is a LOAD CELLS.

6. like the said magnetic resonance system of claim 5, it is characterized in that said LOAD CELLS is any in mechanical type, photo-electric, fluid pressure type, electromagnetic type, condenser type, magnetic pole deformation type, vibration type, gyro ceremony or the resistance strain weighing transducer.

7. like any said magnetic resonance system among the claim 1-6, it is characterized in that, further comprise, detector control and post-processing unit, its be arranged on that Control Computer (2) goes up or sign detector (6) on.

8. like any said magnetic resonance system among the claim 1-6, it is characterized in that said sign detector (6) is arranged on the magnetic resonance equipment (1).