CN107970033A - A kind of brain magnetic detection electric impedance imaging system - Google Patents
A kind of brain magnetic detection electric impedance imaging system Download PDFInfo
- Publication number
- CN107970033A CN107970033A CN201610922818.8A CN201610922818A CN107970033A CN 107970033 A CN107970033 A CN 107970033A CN 201610922818 A CN201610922818 A CN 201610922818A CN 107970033 A CN107970033 A CN 107970033A
- Authority
- CN
- China
- Prior art keywords
- brain
- cap
- electromagnetic
- excitation
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 54
- 238000003384 imaging method Methods 0.000 title claims abstract description 46
- 210000004556 brain Anatomy 0.000 title claims abstract description 38
- 230000005284 excitation Effects 0.000 claims abstract description 49
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 2
- 230000001575 pathological effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0536—Impedance imaging, e.g. by tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
- A61B5/0042—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the brain
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Neurology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The invention discloses a kind of brain magnetic detection electric impedance imaging system, system includes：Electromagnetic detection cap, excitation acquisition control module and image procossing display device.Electromagnetic detection cap has inside and outside two layers, wearable in being placed with excitation electrode on human body head, internal layer cap, and magnetic field sensor is disposed on outer layer cap, and electrode is connected with magnetic field sensor by conducting wire with excitation acquisition control module；Excitation acquisition control module has the function that to control pumping signal with gathering Magnetic Field, can according to demand adjusting parameter to export and handle the signal of varying strength and frequency, collection signal is filtered, amplified, analog-to-digital conversion etc., finally transfers signals to image procossing display device；Image procossing display device integrated microprocessor and display screen, pass through gained brain electromagnetic field information reconstruction imaging body brain electrical impedance distribution image.Resist the influence for being imaged on contact resistance in contact type measurement the present invention overcomes traditional resistor, magnetic induction intensity information around the brain under pumping signal is obtained by contactless magnetic field detection mode, and intracerebral electrical impedance distribution image is reconstructed according to image reconstruction algorithm, so that doctor makes diagnosis to brain physiological and pathological situation.
Description
Technical Field
The invention belongs to the fields of electronic information technology, biomedical imaging and the like, and particularly relates to a magnetic detection and electrical impedance imaging system for a brain.
Background
Physiological and pathological changes of the human body cause changes in electrical conductivity, and electrical impedance imaging (EIT) technology provides diagnostic information by detecting changes in the spatial distribution of electrical conductivity of the human body. Since EIT technology was proposed by biomedical workers in the last 70 th century, electrical impedance imaging has been developed for over 30 years, and gradually becomes a novel medical imaging method involving crossing and fusing multiple subjects such as electromagnetism, electronics, computational mathematics, medical physics and the like. EIT is also difficult to apply in a clinical setting, however, and most researchers agree that the main reason affecting its entry into the clinic is the low spatial resolution of EIT imaging. The EIT has the defects closely separated from the principle and the characteristics of the EIT, wherein the most important reason is the problem of electrode placement, the EIT only utilizes peripheral voltage distribution information, and the information quantity is small[1，2]. Aiming at the problem that EIT can only measure the information of the periphery of an imaging area, Ahlfors is equal to a new non-contact electrical impedance imaging method-magnetic probe electrical impedance imaging method proposed in 1993[3]。
The magnetic detection electrical impedance imaging obtains magnetic induction intensity distribution around an imaging body under the condition of exciting current injection according to an electromagnetic induction principle, and images the spatial distribution of the human body electric conductivity. Compared with the traditional electrical impedance imaging, the MDEIT technology has the advantages of improving the imaging resolution by increasing the measurement information quantity, and the system has simple structure,non-contact measurement, can be used for rapid portable imaging, and has wide application prospect in the aspect of continuously and dynamically monitoring images of human physiological activities[4，5]These are currently difficult to achieve with most clinical imaging modalities.
Reference documents:
[1]Kolehmainen V，Vauhkonen M，Karjalainen P A，et al.Assessment oferrors in static impedance tomography with adjacent and trigonometric currentpatterns[J].Phasiological Measurement，1997，18(4)：289-303.
[2]Mengxing Tang，Wei Wang，James Wheeler，et al.The number ofelectrodes and basis functions in EIT image reconstruction[J].PhysiologicalMeasurement，2002，23(1)：129-40.
[3]Ahlfors s，Ilmoniemi R.Magnetic imaging of conductivity[C].14thProceedings of the Annual International Conference of the IEEE Engineering inMedicine and Biology Socitety(Paris).1992：1717-1718.
[4]Tozer J C，Ireland R H，Barber D C，et al.Magnetic impedancetomography[J].Annals of the New York Academy of Sciences.1999，873(1)：353-359.
[5]R.H.Ireland，J.C.Tozer，D.C.Barber，et al.Towards magnetic detectionimpedance tomography：Data acquisition and image reconstruction of currentdensity in phantom density in phantoms and in vivo[J].PhysiologicalMeasurement.2004，25(3)：775-796.
disclosure of Invention
The invention provides a magnetic detection electrical impedance imaging system for a brain, which realizes effective reconstruction of intracranial electrical impedance distribution of a human body by using a magnetic detection electrical impedance imaging technology, has simple system structure, simple and convenient measurement and low manufacturing cost, provides great convenience for brain diagnosis, and is described in detail as follows:
a magnetic-detection electrical-impedance imaging system for the brain, comprising: the electromagnetic detection cap, the excitation acquisition control module and the image processing display equipment. Wherein,
the electromagnetic detection cap can be worn on the head of a human body and is provided with an inner layer and an outer layer, an excitation electrode is arranged on the inner layer cap, a magnetic field sensor is arranged on the outer layer cap, and the electrode and the magnetic field sensor are connected with an excitation acquisition control module through a lead; the excitation acquisition control module has the functions of controlling excitation signals and acquiring magnetic field information, the excitation acquisition control module can adjust parameters according to requirements to output and process signals with different intensities and frequencies, and the excitation acquisition control module performs filtering, amplification, analog-to-digital conversion and the like on the acquired signals and transmits the signals to the image processing display equipment; the image processing and displaying device integrates a microprocessor and a display screen, and reconstructs an image of the electrical impedance distribution of the brain of the imaging body according to the obtained brain electromagnetic field information.
The electromagnetic detection cap specifically comprises: the manufacturing material is an elastic and foldable textile or rubber product.
The electromagnetic detection cap specifically comprises: the inner cap passes through the aperture so that the excitation electrode is in direct contact with the skin of the head.
The electromagnetic detection cap specifically comprises: the position and the number of the exciting electrodes of the inner layer cap are selected according to the injection mode of the exciting signal.
The electromagnetic detection cap specifically comprises: the surface of the outer layer cap is provided with grooves for placing the electromagnetic sensors, and the number of the grooves is more than or equal to the number of the electromagnetic sensors to be placed.
The electromagnetic detection cap specifically comprises: the position and the number of the electromagnetic field sensors placed on the surface of the outer layer cap are determined according to the point taking position and the number required by measurement.
The electromagnetic detection cap specifically comprises: the space between the inner layer cap and the outer layer cap is filled with a non-electromagnetic medium.
The excitation acquisition control module specifically comprises: the magnetic field sensor has the functions of controlling the excitation signal and collecting magnetic field information.
The excitation acquisition control module specifically comprises: the output excitation signal is current or voltage.
The excitation acquisition control module specifically comprises: the output excitation signal is a signal with single frequency or multiple frequencies, and the frequency and the amplitude are adjustable.
The excitation acquisition control module specifically comprises: and filtering, amplifying and performing analog-to-digital conversion on the acquired magnetic field signals.
The image processing and displaying device is specifically as follows: and reconstructing a brain electrical impedance distribution image of the imaging body by using the acquired brain electromagnetic field distribution information, and displaying the image on a display device.
The image processing and displaying device is specifically as follows: the image reconstruction module can reconstruct the brain electrical impedance distribution image of the imaging body in a static or moving state.
The technical scheme provided by the invention has the beneficial effects that:
the invention provides a brain magnetic detection electrical impedance imaging system, which has the advantages of no wound on a human body, no danger of ionizing radiation, non-contact measurement, simple system structure, simple and convenient measurement and capability of being used for rapid portable imaging.
Drawings
FIG. 1 is a block diagram of the system as a whole; FIG. 3 is a schematic diagram of a static system usage;
FIG. 2 is a top view of the electromagnetic inspection cap; FIG. 4 is a schematic diagram of a dynamic system usage;
in the drawings, the components represented by the respective reference numerals are listed below:
2.1 is a metal electrode; 3.3, data processing display equipment;
2.2 is a metal electrode; 4.1 is an electromagnetic detection cap;
2.3 is a magnetic field sensor; 4.2 is an excitation acquisition control module;
3.1 is an electromagnetic detection cap; 4.3, data processing display equipment;
3.2 is an excitation acquisition control module; 4.4 is a running machine;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In order to improve the adaptability of the magnetic detection electrical impedance imaging system of the brain, referring to fig. 3 and 4, an embodiment of the present invention provides a magnetic detection electrical impedance imaging system of the brain, which is described in detail below:
a brain magnetic detection electrical impedance imaging system comprises an electromagnetic detection cap, an excitation acquisition control module and image processing display equipment. Wherein,
the electromagnetic detection cap (3.1, 4.1) can be worn on the head of a human body, an excitation electrode and a magnetic field sensor are placed on the electromagnetic detection cap, and the electrode and the magnetic field sensor are connected with an excitation acquisition control module by a lead; the excitation acquisition control modules (3.2, 4.2) have the functions of controlling excitation signals and acquiring magnetic field information, the excitation acquisition control modules can adjust parameters according to requirements to output and process signals with different intensities and frequencies, and the excitation acquisition control modules carry out filtering, amplification, analog-to-digital conversion and the like on the acquired signals and transmit the signals to the image processing display equipment; the image processing and displaying equipment (3.3, 3.4) integrates a microprocessor and a display screen, and reconstructs an image of the electrical impedance distribution of the brain of the imaging body according to the obtained brain electromagnetic field information.
Further, in order to meet various requirements in practical application, the electromagnetic detection caps (3.1, 4.1) in the embodiment of the invention can be made into different sizes according to different adaptive crowds.
Further, in order to meet various requirements in practical application, the number and the position of the excitation electrodes on the electromagnetic detection caps (3.1, 4.1) in the embodiment of the invention can be selected according to imaging requirements.
Further, in order to meet various requirements in practical application, the number and the positions of the magnetic field sensors on the electromagnetic detection caps (3.1, 4.1) in the embodiment of the invention can be selected according to imaging requirements.
Further, in order to meet various requirements in practical applications, the signal processing circuits (3.2, 4.2) in the embodiments of the present invention may be single-frequency or multi-frequency output.
Further, the signal processing circuits (3.2, 4.2) in the embodiments of the present invention may be sized according to system requirements in order to meet various requirements in practical applications.
Further, in order to meet various requirements in practical applications, the digital processing display device (3.3, 4.3) in the embodiment of the present invention may be selected to be a portable or desktop device.
The following description will explain the use of the magnetic detection electrical impedance imaging system for brain provided by the present invention with specific embodiments, and will be described in detail below:
example 1:
fig. 3 is a schematic diagram of a brain magnetic detection electrical impedance imaging system composed of an electromagnetic detection cap, an excitation acquisition control module and an image processing display device applied to a static tester. The system using method comprises the following steps:
(1) the subject's body was in a supine position.
(2) The electromagnetic test cap is put on the head of the tester, and the conductive paste is injected to ensure that the excitation electrode is well contacted with the skin of the head.
(3) The excitation and acquisition control module is operated to apply safe current with certain intensity to the tester, collect the magnetic field distribution around the head of the tester in a static state, and transmit data to the image processing display equipment.
(4) And the image processing and displaying equipment reconstructs the electrical impedance distribution of the head of the tester by using an image reconstruction algorithm according to the obtained magnetic field data and displays the reconstruction result.
Example 2:
fig. 4 is a schematic diagram of a tester applying a magnetic detection electrical impedance imaging brain diagnosis system composed of an electromagnetic detection cap, an excitation acquisition control module and a portable image processing display device to a motion state.
The system using method comprises the following steps:
(1) the electromagnetic detection cap is firmly worn on the head of the monitored target, so that the excitation electrode is ensured to be in good contact with the skin of the head.
(2) The electromagnetic detection cap, the excitation acquisition control module and the portable image processing display device are connected.
(3) The excitation and acquisition control module is operated to apply safe current with certain intensity to the tester, collect the magnetic field distribution around the head of the tester in a motion state, and transmit data to the image processing and displaying device in real time.
(4) And the image processing and displaying equipment reconstructs the electrical impedance distribution of the head of the tester by using an image reconstruction algorithm according to the obtained magnetic field data and displays the reconstruction result in real time.
Those skilled in the art will appreciate that the drawings are only schematic illustrations of preferred embodiments, and the above-described embodiments of the present invention are merely provided for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (13)
1. A magnetic-detection electrical-impedance imaging system for the brain, comprising: the electromagnetic detection cap, the excitation acquisition control module and the image processing display equipment. Wherein,
the electromagnetic detection cap can be worn on the head of a human body and is provided with an inner layer and an outer layer, an excitation electrode is arranged on the inner layer cap, a magnetic field sensor is arranged on the outer layer cap, and the electrode and the magnetic field sensor are connected with an excitation acquisition control module through a lead; the excitation acquisition control module has the functions of controlling excitation current and acquiring magnetic field information, can adjust parameters according to requirements to output and process signals with different intensities and frequencies, and carries out filtering, amplification, analog-to-digital conversion and the like on the acquired signals and transmits the signals to the image processing display equipment; the image processing and displaying device integrates a microprocessor and a display screen, and reconstructs an image of the electrical impedance distribution of the brain of the imaging body according to the obtained brain electromagnetic field information.
2. The magnetic-detection electrical-impedance imaging system for the brain according to claim 1, wherein the electromagnetic detection cap is specifically: the manufacturing material is an elastic and foldable textile or rubber product.
3. The magnetic-detection electrical-impedance imaging system for the brain according to claim 2, wherein the electromagnetic detection cap is specifically: the inner cap passes through the aperture so that the excitation electrode is in direct contact with the skin of the head.
4. The magnetic-detection electrical-impedance imaging system for the brain according to claim 2, wherein the electromagnetic detection cap is specifically: the position and the number of the exciting electrodes of the inner layer cap are selected according to the injection mode of the exciting signal.
5. The magnetic-detection electrical-impedance imaging system for the brain according to claim 2, wherein the electromagnetic detection cap is specifically: the surface of the outer layer cap is provided with grooves for placing the electromagnetic sensors, and the number of the grooves is more than or equal to the number of the electromagnetic sensors to be placed.
6. The magnetic-detection electrical-impedance imaging system for the brain according to claim 2, wherein the electromagnetic detection cap is specifically: the position and the number of the electromagnetic field sensors placed on the surface of the outer layer cap are determined according to the point taking position and the number required by measurement.
7. The magnetic-detection electrical-impedance imaging system for the brain according to claim 2, wherein the electromagnetic detection cap is specifically: the space between the inner layer cap and the outer layer cap is filled with a non-electromagnetic medium.
8. The system according to claim 1, wherein the excitation acquisition control module is specifically configured to: the magnetic field sensor has the functions of controlling the excitation signal and collecting magnetic field information.
9. The system of claim 8, wherein the excitation acquisition control module is specifically configured to: the output excitation signal is current or voltage.
10. The system of claim 8, wherein the excitation acquisition control module is specifically configured to: the output excitation signal is a signal with single frequency or multiple frequencies, and the frequency and the amplitude are adjustable.
11. The system of claim 8, wherein the excitation acquisition control module is specifically configured to: and filtering, amplifying and performing analog-to-digital conversion on the acquired magnetic field signals.
12. The system for magnetic detection and electrical impedance imaging of the brain according to claim 1, wherein the image processing and display device is specifically: and reconstructing a brain electrical impedance distribution image of the imaging body by using the acquired brain electromagnetic field distribution information, and displaying the image on a display device.
13. The system according to claim 12, wherein the image processing and displaying device is specifically: the image reconstruction module can reconstruct the brain electrical impedance distribution image of the imaging body in a static or moving state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610922818.8A CN107970033A (en) | 2016-10-25 | 2016-10-25 | A kind of brain magnetic detection electric impedance imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610922818.8A CN107970033A (en) | 2016-10-25 | 2016-10-25 | A kind of brain magnetic detection electric impedance imaging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107970033A true CN107970033A (en) | 2018-05-01 |
Family
ID=62003995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610922818.8A Pending CN107970033A (en) | 2016-10-25 | 2016-10-25 | A kind of brain magnetic detection electric impedance imaging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107970033A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534664A (en) * | 2018-07-11 | 2018-09-14 | 天津工业大学 | A kind of workpiece configurations detecting system based on magnetic detection electrical impedance imaging |
| CN108836331A (en) * | 2018-07-11 | 2018-11-20 | 天津工业大学 | A kind of method and system obtaining conductivity imaging by magnetic approach |
| CN109342505A (en) * | 2018-11-27 | 2019-02-15 | 爱德森（厦门）电子有限公司 | A kind of non-destructive determination method of metal ingredient and position in closing shell |
| CN109567784A (en) * | 2018-12-05 | 2019-04-05 | 北京昆迈生物医学研究院有限公司 | A kind of wearable portable quantum magneticencephalogram system and method |
| CN110051931A (en) * | 2019-05-16 | 2019-07-26 | 北京康源嘉成生物科技有限公司 | A kind of wearable device and its electromagnetic conversion unit localization method exporting magnetic field |
| CN110207862A (en) * | 2019-05-28 | 2019-09-06 | 北京航空航天大学 | A kind of tactile pressure sensor and signal acquisition method based on electrical impedance tomography |
| CN110292382A (en) * | 2019-05-31 | 2019-10-01 | 海口市人民医院 | A kind of brain injury animal model building composition monitoring device |
| CN111504884A (en) * | 2020-05-19 | 2020-08-07 | 中国科学技术大学 | Microscopic electrical impedance imaging device and method based on diamond NV color center |
| CN113081261A (en) * | 2021-05-25 | 2021-07-09 | 天津市环湖医院 | Hematoma puncture navigation probe device and brain magnetic detection electrical impedance imaging system |
| WO2022258963A1 (en) * | 2021-06-11 | 2022-12-15 | Cyqiq Ltd | Impedance tomography |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397095B1 (en) * | 1999-03-01 | 2002-05-28 | The Trustees Of The University Of Pennsylvania | Magnetic resonance—electrical impedance tomography |
| US20130231553A1 (en) * | 2010-12-21 | 2013-09-05 | Electrical Geodesics, Inc. | Methods for using electrical impedance tomography |
| CN204363985U (en) * | 2014-10-17 | 2015-06-03 | 重庆金山科技（集团）有限公司 | Measure the imaging system of brain impedance |
| CN104783800A (en) * | 2015-05-05 | 2015-07-22 | 天津工业大学 | Lung respiration monitoring system based on magnetic detection electrical impedance imaging |
| CN105559781A (en) * | 2016-02-01 | 2016-05-11 | 北京理工大学 | ZYNQ-based portable human body impedance real-time imaging device capable of being worn during exercise |
-
2016
- 2016-10-25 CN CN201610922818.8A patent/CN107970033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397095B1 (en) * | 1999-03-01 | 2002-05-28 | The Trustees Of The University Of Pennsylvania | Magnetic resonance—electrical impedance tomography |
| US20130231553A1 (en) * | 2010-12-21 | 2013-09-05 | Electrical Geodesics, Inc. | Methods for using electrical impedance tomography |
| CN204363985U (en) * | 2014-10-17 | 2015-06-03 | 重庆金山科技（集团）有限公司 | Measure the imaging system of brain impedance |
| CN104783800A (en) * | 2015-05-05 | 2015-07-22 | 天津工业大学 | Lung respiration monitoring system based on magnetic detection electrical impedance imaging |
| CN105559781A (en) * | 2016-02-01 | 2016-05-11 | 北京理工大学 | ZYNQ-based portable human body impedance real-time imaging device capable of being worn during exercise |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108836331A (en) * | 2018-07-11 | 2018-11-20 | 天津工业大学 | A kind of method and system obtaining conductivity imaging by magnetic approach |
| CN108534664A (en) * | 2018-07-11 | 2018-09-14 | 天津工业大学 | A kind of workpiece configurations detecting system based on magnetic detection electrical impedance imaging |
| CN109342505A (en) * | 2018-11-27 | 2019-02-15 | 爱德森（厦门）电子有限公司 | A kind of non-destructive determination method of metal ingredient and position in closing shell |
| CN109567784A (en) * | 2018-12-05 | 2019-04-05 | 北京昆迈生物医学研究院有限公司 | A kind of wearable portable quantum magneticencephalogram system and method |
| CN110051931A (en) * | 2019-05-16 | 2019-07-26 | 北京康源嘉成生物科技有限公司 | A kind of wearable device and its electromagnetic conversion unit localization method exporting magnetic field |
| CN110207862B (en) * | 2019-05-28 | 2020-07-03 | 北京航空航天大学 | Tactile pressure sensor based on electrical impedance tomography and signal acquisition method |
| CN110207862A (en) * | 2019-05-28 | 2019-09-06 | 北京航空航天大学 | A kind of tactile pressure sensor and signal acquisition method based on electrical impedance tomography |
| CN110292382A (en) * | 2019-05-31 | 2019-10-01 | 海口市人民医院 | A kind of brain injury animal model building composition monitoring device |
| CN111504884A (en) * | 2020-05-19 | 2020-08-07 | 中国科学技术大学 | Microscopic electrical impedance imaging device and method based on diamond NV color center |
| CN111504884B (en) * | 2020-05-19 | 2021-07-09 | 中国科学技术大学 | Microscopic electrical impedance imaging device and method based on diamond NV color center |
| CN113081261A (en) * | 2021-05-25 | 2021-07-09 | 天津市环湖医院 | Hematoma puncture navigation probe device and brain magnetic detection electrical impedance imaging system |
| CN113081261B (en) * | 2021-05-25 | 2023-11-21 | 天津市环湖医院 | Hematoma puncture navigation probe device and brain magnetic detection electrical impedance imaging system |
| WO2022258963A1 (en) * | 2021-06-11 | 2022-12-15 | Cyqiq Ltd | Impedance tomography |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107970033A (en) | A kind of brain magnetic detection electric impedance imaging system | |
| Bera | Applications of electrical impedance tomography (EIT): a short review | |
| Adler et al. | Electrical impedance tomography: Tissue properties to image measures | |
| Zou et al. | A review of electrical impedance techniques for breast cancer detection | |
| Jiang et al. | Capacitively coupled electrical impedance tomography for brain imaging | |
| CN104321011B (en) | Method and system for tomographic imaging | |
| KR101345640B1 (en) | Bio-impedance measuring sensor comprising multi dry electrode, and sensor module and measuring system comprising the same, and method for measuring bio-impedance | |
| CN101466303A (en) | Apparatus and method for electrical impedance imaging | |
| Singh et al. | A low-cost portable wireless multi-frequency electrical impedance tomography system | |
| Seo et al. | Magnetic resonance electrical impedance tomography (MREIT): conductivity and current density imaging | |
| Logothetis et al. | Embroidered electrodes for bioelectrical impedance analysis: impact of surface area and stitch parameters | |
| US20120043969A1 (en) | Impedance Tomography Apparatus | |
| Seoane et al. | Electrical bioimpedance cerebral monitoring | |
| Ogawa et al. | Investigation of physiological swelling on conductivity distribution in lower leg subcutaneous tissue by electrical impedance tomography | |
| Meroni et al. | An electrical impedance tomography (EIT) multi-electrode needle-probe device for local assessment of heterogeneous tissue impeditivity | |
| CN209847158U (en) | Electrical impedance imaging apparatus | |
| US20240260877A1 (en) | Impedance tomography | |
| Anand et al. | A technical survey on hardware configurations for electrical impedance tomography systems | |
| CN108836331A (en) | A kind of method and system obtaining conductivity imaging by magnetic approach | |
| Garg et al. | Design and development of Electrical Impedance Tomography (EIT) based system | |
| Ain et al. | Design of electrical impedance tomography for biomedicine | |
| US20220287567A1 (en) | System and method for measuring tissue parameters by use of capacitive tactile sensor | |
| JP2014158576A (en) | Bioelectrode | |
| Liu et al. | Detection of pressure ulcers using electrical impedance tomography | |
| WO2022013527A1 (en) | Electrode harness for use in carrying out electrical impedance tomography, a system and a method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180501 |