CN103239244A - Analyzer and nuclear medicine equipment - Google Patents
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- CN103239244A CN103239244A CN2012100304417A CN201210030441A CN103239244A CN 103239244 A CN103239244 A CN 103239244A CN 2012100304417 A CN2012100304417 A CN 2012100304417A CN 201210030441 A CN201210030441 A CN 201210030441A CN 103239244 A CN103239244 A CN 103239244A
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- 238000009206 nuclear medicine Methods 0.000 title claims abstract description 45
- 238000004458 analytical method Methods 0.000 claims abstract description 23
- 230000003321 amplification Effects 0.000 claims description 16
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 16
- 230000033001 locomotion Effects 0.000 claims description 14
- 230000003139 buffering effect Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001143 conditioned effect Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 230000007704 transition Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000036626 Mental retardation Diseases 0.000 description 1
- 206010027476 Metastases Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
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- 230000008081 blood perfusion Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 210000002751 lymph Anatomy 0.000 description 1
- 230000009401 metastasis Effects 0.000 description 1
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- 238000005025 nuclear technology Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000011362 radionuclide therapy Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
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Abstract
The invention discloses an analyzer and nuclear medicine equipment. The analyzer is used for displaying energy signals satisfying a preset threshold on main control equipment for energy signals sharing the nuclear medicine equipment. The analyzer comprises an interface circuit connected with the main control equipment, an analyzing circuit and a sampling circuit. The analyzing circuit is connected with the main control circuit through the interface circuit, and is used for receiving a collection command sent by the main control equipment, analyzing energy signals collected based on the collection command, converting the energy signals satisfying preset conditions into image signals according to analysis results, and transmitting the images signals to the main control equipment. The sampling circuit is connected with the analyzing circuit, and is used for collecting the energy signals of the nuclear medicine equipment according to the collection command, and transmitting the collected energy signals back to the analyzing circuit. By the aid of the analyzer, nuclear consumption of the nuclear medicine equipment can be analyzed effectively and displayed on the main control equipment in an image form.
Description
Technical field
The present invention relates to the Medical Equipment field, more specifically, relate to a kind of analyzer and nuclear medicine facility.
Background technology
Nuclear medicine is the applied science of nuclear technology in medical domain, and a kind of exactly utilization is marked with the pharmacodiagnosis of radionuclide and the science for the treatment of disease, and wherein the radionuclide tracer technique is the basic fundamental of nuclear medicine.Nuclear medicine comprises nucleic diagnosis and radionuclide therapy.The nuclear medicine inspection can be understood the function of main organs such as the heart, kidney, understands the blood perfusion of internal organs such as cardiac muscle, brain, lung, can understand and judge existence and lymph metastasis and the bone transfer etc. of tumor, and it can find pathological changes when not having symptom.
But, in existing nuclear medicine facility use, multiple radiolabeled drugs is arranged, but because the energy difference of nuclear element needs to differentiate and analyze its energy score value, could effectively collect image.The use that may cause nuclear medicine facility like this is accurate problem inadequately, and for this problem, does not propose effective solution at present as yet.
Summary of the invention
The present invention discloses a kind of analyzer and nuclear medicine facility, and the use that be used for to solve the nuclear medicine facility that prior art exists is accurate problem inadequately.
For achieving the above object, according to an aspect of the present invention, provide a kind of analyzer, and by the following technical solutions:
A kind of analyzer, for the energy spectrometer of nuclear medicine facility, described analyzer connects between main control device and the nuclear medicine facility, and comprising: interface circuit connects described main control device; Analysis circuit, connect described main control device by described interface circuit, be used for receiving the acquisition instructions that described main control device sends, and to analyzing based on the energy signal of described acquisition instructions collection, will meet pre-conditioned energy signal according to described analysis result and be converted to picture signal and be transferred to described main control device; Sample circuit connects described analysis circuit, be used for according to described acquisition instructions the energy signal of described nuclear medicine facility being gathered, and the described energy signal that will collect returns to described analysis circuit.
Further, analyzer also comprises: comparison circuit, connect described sample circuit and described analysis circuit respectively, and be used for according to the predetermined threshold value of described acquisition instructions the acquired signal of described employing circuit being carried out useful collection.
Further, described analysis circuit comprises: A/D changes transducer, connects described interface circuit, and the binary digital signal that is used for described acquisition instructions that described interface circuit is received is converted to analogue signal; Current-to-voltage convertor connects described A/D converter, and being used for described analog signal conversion is behind the voltage signal and output.
Further, described sample circuit comprises: input buffer circuit, connect described analysis circuit, and be used for receiving described voltage signal; Control circuit, connect described input buffer circuit, described control circuit comprises first port and second port, described first port is used for control logic voltage, described second port is used for the control logic reference voltage, and during greater than described control logic reference voltage, described voltage signal is through the outfan of described input buffering level at described control logic voltage, during less than described control logic reference voltage, described voltage signal is without the outfan of described input buffering level at described control logic voltage.Output driving circuit connects the outfan of described input buffer circuit, is used for the described voltage signal of output, makes described sample circuit keep sample states.
Further, analyzer also comprises: motion control circuit, connect described interface circuit, and be used for receiving the motion control instruction of described main control device and being transferred to described nuclear medicine facility.
Further, described motion control circuit comprises: enumerator, connect described nuclear medicine facility, be used for to receive the pulse number that described nuclear medicine facility sends, the photoelectric encoder that described pulse number is based on described nuclear medicine facility records and generates behind the kinematic parameter of described nuclear medicine facility; Reset circuit connects described enumerator, is used for sending reset command to described nuclear medicine facility when the pulse number of described counter records reaches the pulse number of setting.
Further, analyzer also comprises: signal amplification circuit, connect described interface circuit, and be used for receiving the amplification instruction of described main control device, and according to the described picture signal of described amplification instruction amplification, and the described image signal transmission after will amplifying is given described main control device.
According to another aspect of the present invention, provide a kind of nuclear medicine facility, and by the following technical solutions:
Nuclear medicine facility comprises above-mentioned analyzer.
Analyzer provided by the invention can be analyzed the energy signal of nuclear medicine facility, and lower threshold value is set, produce acquisition pulse, image data, and an analog data of gathering is given A/D transition card, the A/D transition card converts analog data to digital signal and gives the computer demonstration, and the control section in the analyzer is the action that comes control appliance by the order that computer provides.Pass through technique scheme, can effectively solve communication and the signal distinguishing ability of equipment and computer, effectively the nuclear use amount of nuclear medicine facility is analyzed, and be presented on the main control device with the form of image, two kinds of functions perfectly are combined on the circuit.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 represents the primary structure sketch map of the described a kind of analyzer of the embodiment of the invention;
Fig. 2 represents the concrete structure sketch map of the described a kind of analyzer of the embodiment of the invention;
Fig. 3 represents the concrete structure sketch map of the described analysis circuit of the embodiment of the invention;
Fig. 4 represents the primary structure sketch map of the described interface circuit of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Fig. 1 represents the primary structure sketch map of the described a kind of analyzer of the embodiment of the invention.
Referring to shown in Figure 1, analyzer, for the energy spectrometer of nuclear medicine facility, described analyzer connects between main control device and the nuclear medicine facility, and comprising: interface circuit 11 connects described main control device (not shown); Analysis circuit 13, connect described main control device by described interface circuit 11, be used for receiving the acquisition instructions that described main control device sends, and to analyzing based on the energy signal of described acquisition instructions collection, will meet pre-conditioned energy signal according to described analysis result and be converted to picture signal and be transferred to described main control device; Sample circuit 15 connects described analysis circuit 13, be used for according to described acquisition instructions the energy signal of described nuclear medicine facility (not shown) being gathered, and the described energy signal that will collect returns to described analysis circuit 13.
By the technique scheme of present embodiment, analyzer is given computer the digital signal of gathering that converts to and is shown, the control section in the analyzer is the action that comes control appliance by the order that computer provides.Interface circuit adopts interface chip, plays the transmitting effect of data.
Fig. 2 represents the concrete structure sketch map of the described a kind of analyzer of the embodiment of the invention.
Referring to shown in Figure 2, analyzer can comprise that pci interface circuit 25, motion control circuit 20, signal amplification circuit 21, energy window arrange circuit 22, comparison circuit 23, adopt holding circuit 24, wherein, motion control circuit 20 connects pci interface circuit 25, signal amplification circuit 21 connects pci interface circuit 25, energy window arranges circuit 22 and connects pci interface circuit 25, and comparison circuit connects energy window circuit 22 is set, and adopts holding circuit to connect comparison circuit 23.
In the technique scheme of present embodiment, pci interface circuit 25 connects computer, adopts holding circuit 24 to connect nuclear medicine facility, its major function: the first, to collection and the analysis of nuclear medicine facility signal; The second, can allow by analyzer and to realize communicating by letter between computer and the nuclear medicine facility.
Fig. 3 represents the concrete structure sketch map of the described analysis circuit of the embodiment of the invention.
Referring to shown in Figure 3, analysis circuit adopts energy window that circuit is set, in computer, pre-set higher limit and the lower limit of energy window by acquisition software, energy window arranges circuit the higher limit of the energy window that sets in the acquisition software and lower limit is converted to voltage analog, thereby realizes gathering different energy signals.Implementation procedure can be the higher limit (high energy) and the lower limit (mental retardation) that set energy window in acquisition software, begin to gather, the higher limit of energy window, lower limit converts corresponding 8 binary codes to, by the pci interface circuit, computer is passed to analyzer to 8 binary codes, after analyzer receives corresponding data, former state output, the corresponding binary code of higher limit is exported to L15-AD7524, digital signal is converted to analogue signal (current signal I_out1), become voltage amplifier by the L10-LF356 current conversion again, export upper_vout at last; The corresponding binary code of lower limit is exported to L14-AD7524, digital signal is converted to analogue signal (current signal I_out1), become voltage amplifier by the L11-LF356 current conversion again, export lower_vout at last, it is that digital quantity is converted to analog quantity output that AD7524 mainly acts on, and LF356 is that a current conversion becomes voltage amplifier (as upper_vout=I_out1*R34).
Fig. 4 represents the primary structure sketch map of the described interface circuit of the embodiment of the invention.
Referring to shown in Figure 4, the function of pci interface circuit is to allow computer communicate by letter with analyzer.Can be realized by PCI9052, PCI9052 is a kind of target interface of pci bus cheaply chip, has the transfer rate height, the advantage that data throughout is big, and can avoid the user directly in the face of complicated pci bus agreement, can be provided for minitype high-performance pci bus target (subordinate) interface of adapter so that the ISA adapter can be rapidly, be transformed on the pci bus at low cost.Adopt PCI9052 can make the I/O data transfer rate on the adapter can make I/O data transfer rate on the adapter bring up to the 33MHz of PCI from the 8MHz of isa bus from PCI9052.Host CPU on the pci bus can directly read data in the memorizer by PCI9052.The main effect in analyzer of pci interface circuit has: 1. in acquisition software, arrange energy window on, 2. lower limit sets X in acquisition software, the amplification of Y-signal, 3. in acquisition software, send a command to analyzer, analyzer rotates by the peripheral circuit control appliance, perhaps translation, the equipment rotation, in the time of translation, photoelectric encoder produces pulse, gives analyzer, analyzer is write down pulse number, by the time in the time of identical with the pulse number of setting, give interrupt signal of acquisition software, acquisition software is given reset command of analyzer.Allow the mechanical movement of equipment be reset to original state.
The function of sampling hold circuit is that X, Y-signal that equipment collects are done useful collection, realized by LF398, LF398 is by the input buffering level, out drive stage, control circuit is formed, and control circuit is made up of control logic voltage V8 and control logic reference voltage V7, when V8＞V7. input signal is followed output through the input buffering level to outfan, when V8＜V0, input signal can not arrive outfan, is in off-state.X, in the sampling hold circuit of Y-signal, at the impulse wave of a T=0.7us of 8 feet of LF398 input, only when the high level of pulse, V8＞V7, circuit sampling keeps, and when the low level of pulse, circuit is not sampled.
The function of comparison circuit is: the outfan at LB13B produces a trailing edge triggering edge, implementation procedure: 1. E0-in ' and E0-in are relatively, both wave-shape amplitude are the same, the former is ahead of the latter at phase place, rising edge of outfan E0-out1 output of L5 triggers L8A and L8B, 2. E0-in compares with upper_out and lower_vout respectively, compare with upper-out, at high level of the outfan E0-vout2 of L7 output, compare with lower-vout, the outfan E0-out3 output low level of L6, by trigger L8A and L8B, trigger the edge at trailing edge of the outfan of L13B, only trigger the edge at outfan output trailing edge, just the X that can come to equipment, Y-signal is done useful collection.The function of signal amplification circuit is: X, Y-signal are effectively amplified.Implementation procedure: set amplification at acquisition software, pass to analyzer by computer, analyzer is given 4051 A, high-low level takes place respectively in B, C, is used for gating Xi passage, such as, A=0, B=0, C=0, the amplification=R71/R52 of X signal, the amplification of Y-signal=R56/R55.4051 gating be the X0 passage, A=1, B=1, C=1, amplification=the R70/R52 of X signal, the amplification of Y-signal=R69/R55.4051 gating X7.
The function of motion control circuit is: select the corresponding command to come the motor pattern of control appliance by computer software.It can realize two kinds of motor patterns: translational motion with rotatablely move.The speed of every kind of motion is divided into again at a high speed, high speed, middling speed, four speed of low speed, in data acquisition or debug process, set after the motor pattern of software, send corresponding instruction and arrive the analyzer interface circuit by computer bus, analyzer receives orders, give an order to control circuit, allow peripheral circuit come rotatablely moving of control appliance or translational motion, meanwhile, the anglec of rotation or the translation distance of the photoelectric encoder recording equipment in the equipment, send pulse to analyzer, analyzer is noted pulse number, when pulse number reaches the pulse number of setting with analyzer when identical, analyzer sends reset command, and motion finishes.
Nuclear medicine facility comprises above-mentioned analyzer.
By technique scheme of the present invention, analyzer analysing energy signal, window up and down is set, produce acquisition pulse, image data, and give A/D transition card an analog data of gathering, the A/D transition card converts analog data to digital signal and gives computer and show that the control section in the analyzer card is the action that comes control appliance by the order that computer provides.
Claims (8)
1. an analyzer for the energy spectrometer of nuclear medicine facility, between described analyzer connection main control device and the nuclear medicine facility, is characterized in that, comprising:
Interface circuit connects described main control device;
Analysis circuit, connect described main control device by described interface circuit, be used for receiving the acquisition instructions that described main control device sends, and to analyzing based on the energy signal of described acquisition instructions collection, will meet pre-conditioned energy signal according to described analysis result and be converted to picture signal and be transferred to described main control device;
Sample circuit connects described analysis circuit, be used for according to described acquisition instructions the energy signal of described nuclear medicine facility being gathered, and the described energy signal that will collect returns to described analysis circuit.
2. analyzer according to claim 1 is characterized in that, also comprises:
Comparison circuit connects described sample circuit and described analysis circuit respectively, is used for according to the predetermined threshold value of described acquisition instructions the acquired signal of described employing circuit being carried out useful collection.
3. analyzer according to claim 1 is characterized in that, described analysis circuit comprises:
A/D changes transducer, connects described interface circuit, and the binary digital signal that is used for described acquisition instructions that described interface circuit is received is converted to analogue signal;
Current-to-voltage convertor connects described A/D converter, and being used for described analog signal conversion is behind the voltage signal and output.
4. analyzer according to claim 1 is characterized in that, described sample circuit comprises:
Input buffer circuit connects described analysis circuit, is used for receiving described voltage signal;
Control circuit, connect described input buffer circuit, described control circuit comprises first port and second port, described first port is used for control logic voltage, described second port is used for the control logic reference voltage, and during greater than described control logic reference voltage, described voltage signal is through the outfan of described input buffering level at described control logic voltage, during less than described control logic reference voltage, described voltage signal is without the outfan of described input buffering level at described control logic voltage.
Output driving circuit connects the outfan of described input buffer circuit, is used for the described voltage signal of output, makes described sample circuit keep sample states.
5. analyzer according to claim 1 is characterized in that, also comprises:
Motion control circuit connects described interface circuit, is used for receiving the motion control instruction of described main control device and being transferred to described nuclear medicine facility.
6. analyzer according to claim 5 is characterized in that, described motion control circuit comprises:
Enumerator connects described nuclear medicine facility, be used for to receive the pulse number that described nuclear medicine facility sends, and the photoelectric encoder that described pulse number is based on described nuclear medicine facility records and generates behind the kinematic parameter of described nuclear medicine facility;
Reset circuit connects described enumerator, is used for sending reset command to described nuclear medicine facility when the pulse number of described counter records reaches the pulse number of setting.
7. analyzer according to claim 1 is characterized in that, also comprises:
Signal amplification circuit connects described interface circuit, is used for receiving the amplification instruction of described main control device, and amplifies described picture signal according to described amplification instruction, and the described image signal transmission after will amplifying is given described main control device.
8. a nuclear medicine facility is characterized in that, comprises each described analyzer in the claim 1 to 7.
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| CN201210030441.7A CN103239244B (en) | 2012-02-10 | 2012-02-10 | Analyzer and nuclear medicine equipment |
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| CN201210030441.7A CN103239244B (en) | 2012-02-10 | 2012-02-10 | Analyzer and nuclear medicine equipment |
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| CN103239244B CN103239244B (en) | 2015-07-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388841A (en) * | 2016-09-23 | 2017-02-15 | 沈阳东软医疗系统有限公司 | An image reconstruction method, device and apparatus |
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2012
- 2012-02-10 CN CN201210030441.7A patent/CN103239244B/en not_active Expired - Fee Related
Patent Citations (7)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106388841A (en) * | 2016-09-23 | 2017-02-15 | 沈阳东软医疗系统有限公司 | An image reconstruction method, device and apparatus |
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