CN201259533Y - A magnetic resonance quality control integrated test phantom - Google Patents
A magnetic resonance quality control integrated test phantom Download PDFInfo
- Publication number
- CN201259533Y CN201259533Y CNU2008201721233U CN200820172123U CN201259533Y CN 201259533 Y CN201259533 Y CN 201259533Y CN U2008201721233 U CNU2008201721233 U CN U2008201721233U CN 200820172123 U CN200820172123 U CN 200820172123U CN 201259533 Y CN201259533 Y CN 201259533Y
- Authority
- CN
- China
- Prior art keywords
- test
- layer
- test layer
- magnetic resonance
- quality control
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The utility model discloses a magnetic resonance quality control comprehensive testing phantom, which comprises a shell and testing layers, and is characterized in that a left seal plate and a right seal plate are arranged on the shell; wherein, a positioning component is arranged on the inner side of one of the two seal plates; the positioning component is composed of a pull rod and a sleeve; a thread is arranged on the pull rod, and one end of the pull rod is fixed on the corresponding seal plate; a positioning hole is respectively arranged on the same position on each testing layer corresponding to the pull rod; the testing layers are nested on the pull rods; sleeves are arranged on the pull rods respectively between adjacent testing layers; a fastening nut is arranged on the pull rod of the outmost testing layer; the testing layer comprises a layer thickness testing layer, a relaxation value testing layer, a contrast resolution testing layer, a positioning layer and an overflow layer. Compared with the prior art, the magnetic resonance quality control comprehensive testing phantom has the advantages of more testing parameters, high accuracy and modularized design.
Description
One, technical field
The utility model relates to a kind of proving installation of nuclear magnetic resonance, specifically a kind of magnetic resonance quality control integration test phantom.
Two, background technology
Nuclear magnetic resonance equipment dispatch from the factory and routine inspection in to carry out parameter testing to it, detect required precision to reach, so will carry out regular parametric measurement to nuclear magnetic resonance, and existing proving installation function singleness needs can only measure limited several parameters, integration test the time several phantoms just can finish at every turn, and the at present domestic above comprehensive quality control test phantom of seven parameters of still not testing.
Three, summary of the invention
The utility model is at above weak point, and a kind of test parameter is many, precision is high, the magnetic resonance quality control integration test phantom of modular design test layer flexible combination but provide.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of magnetic resonance quality control integration test phantom, comprise shell and test layer, it is characterized in that: shell is provided with left shrouding and right shrouding, and wherein the inboard is provided with align member on the shrouding, align member is made up of pull bar and sleeve, and pull bar is provided with screw thread and an end is fixed on the corresponding shrouding; Each test layer same position place is provided with and the pull bar corresponding positioning hole; Test layer is set on the pull bar, is arranged with sleeve on the pull bar between adjacent test layer, and outermost one test layer pull bar is provided with clamp nut.
Each test layer is modular design in the phantom, fix by pull bar and sleeve, can dismantle flexibly, change and combination, change collocation and discharging order, the user can be according to research test purpose combination in any test suite, it is many to have the test layer kind, function is complete, characteristics such as test specification is wide, solved domestic phantom function singleness, need several phantoms just can finish the shortcoming that the conventional parameter test is compared, 11 nuclear magnetic resonance quality controls and quality assurance parameter can be tested, NMR system test in conventional day can be satisfied fully, moon test is with the overwhelming majority requirement of testing in year and have the function of expansion.
Above-mentioned bed thickness test layer is two orthogonal test blocks, each test block comprises two parallel test cells, each test test cell comprises the two head and the tail wedge of overlap joint up and down, and two wedges form a slit, and adjacent parallel test cell slit is the staggered straight line in space.
The bed thickness test layer comprises the test suite of vertical and horizontal both direction, can be under the situation of not rotating phantom, the bed thickness, interlayer of measuring cross-section, sagittal and crown three kinds of sections every with layer deviation.
Relaxation value test layer is that test board is provided with testing tube, and test fluid is housed in the testing tube.
Testing tube can adopt cuvette, non-magnetic susceptibility liquid is housed in the glass tube, when this layer is scanned, can obtains the sensitization rate of test liquid, in conjunction with software, can record spin-lattice relaxation time, spin-spin relaxation time and the resonance frequency value of test liquid.
Contrast resolution's test layer comprises that cellular type low contrast resolution test layer and line to formula high-contrast resolution test layer, evenly have instrument connection on the cellular type low contrast resolution test layer; Linear high-contrast resolution test layer is provided with linear groove, is provided with center of circle locating slot on this test layer, the center of circle that the summit is a test layer of locating slot.
Can be provided with the different holes of many group diameters on the cellular type low contrast resolution test layer, organize the even rule in hole more and arrange, ground contrast resolution that can measuring system; Line is organized the different linear grooves of diameter widths resolution test can be adopted to the formula high-contrast more, and the rectangle swash carries out the measurement of resolution to the form of card, can record the system modulation transport function in conjunction with software, and locating slot can conveniently position.
Alignment layers comprises three groups of locating pieces, every group of locating piece comprises two right-angle triangles, and these two right-angle triangles, two identical right-angle sides overlap, and hypotenuse is arranged in a crossed manner, three groups of locating pieces point to sagittal section, coronal section and the cross-section tangent plane of phantom respectively, conveniently carry out the accurate location of three tangent planes.
Alignment layers can carry out phantom location, prevents that phantom from putting inclination, influences the measuring accuracy of each test layer.
The overflow layer comprises the neat liquid test suite, is provided with the liquid formation in the test layer and is equal to the phantom dosing.Region height 〉=20mm.The neat liquid assembly can be tested signal to noise ratio (S/N ratio), uniformity coefficient, the linearity, aspect ratio and geometric distortion.
Above-mentioned magnetic resonance quality control integration test phantom, shell is cylindric, the plane parallel at the radial line of cylinder and test layer place.
Columned profile helps the rotation at any angle of phantom, and the radial line of cylinder and test layer place plane parallel help measuring and the viewing test result.
As improvement of the present utility model, test layer cancellation pilot hole can be fixed the side that it is arranged on shell as a shrouding and shell.
Four, description of drawings
Fig. 1 magnetic resonance quality control integration test phantom structural representation;
Fig. 2 bed thickness test layer vertical view;
Fig. 3 bed thickness test layer front elevation;
Fig. 4 bed thickness test layer left view;
Fig. 5 bed thickness test layer stereographic map;
Fig. 6 relaxation value test layer vertical view;
Fig. 7 relaxation value test layer front elevation;
Fig. 8 relaxation value test layer stereographic map;
The vertical view of Fig. 9 cellular type low contrast resolution test layer;
Figure 10 is the A-A view of Fig. 9;
Figure 11 line is to the vertical view of formula high-contrast resolution test layer;
Figure 12 line is to the left view of formula high-contrast resolution test layer;
The vertical view of Figure 13 alignment layers;
The stereographic map of Figure 14 alignment layers;
Figure 15 overflow layer stereographic map;
Figure 16 overflow layer vertical view.
Five, embodiment
A kind of magnetic resonance quality control integration test phantom comprises columned shell, test layer as shown in Figure 1; Shell is provided with left shrouding and right shrouding, shell side is to being provided with align member outwardly on the right shrouding, and align member is made up of pull bar and sleeve, and pull bar is provided with screw thread and an end is fixed on the right shrouding, be provided with four pull bars altogether, the parallel axes of this pull bar and shell on the right shrouding; Test layer comprises bed thickness test layer, relaxation value test layer, contrast test layer, alignment layers and overflow layer; Each test layer same position place is provided with pilot hole, and the pilot hole on the test layer is corresponding with the pull bar on the shell; Test layer is set on the pull bar, is arranged with sleeve on the pull bar between adjacent test layer, and outermost one test layer pull bar is provided with clamp nut; Each layer position can arbitrarily exchange, and also can only select required test layer as required.
Relaxation value test layer such as Fig. 6, Fig. 7 and shown in Figure 8, its cuvette by seven replaceable full media is formed, and can choose seven kinds of non-magnetic susceptibility liquid wantonly, pours in the cuvette respectively and sealing.One end of pipe is a cecum, and the other end is that screw is fixed on the test board.The volume of pipe is 5 ~ 10cc, the diameter 〉=15mm of pipe, pipe height 〉=30mm.With the cancellation of the pilot hole of relaxation value test layer, then with the cuvette of relaxation value test layer towards the left shrouding of enclosure as shell.
Bed thickness test layer such as Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, it is two orthogonal test blocks, each test block comprises two parallel test cells, each test test cell comprises the two head and the tail wedge of overlap joint up and down, two wedges form a slit, and seam height≤1mm stitches wide 〉=10mm, seam and substrate angle≤45 degree, adjacent parallel test cell slit are the staggered straight line in space.
Low contrast resolution test layer Fig. 9 and shown in Figure 10, constitute by low contrast resolution test assembly, test suite is that 1～12mm circular hole is formed by six groups of diameters, every group has four with the diameter circular hole, four degree of depth are respectively 0.5mm, 0.75mm, 1.0mm and 2.0mm, and interior on the same group circular hole gap equals the aperture.
Alignment layers such as Figure 13 and shown in Figure 14, comprise three groups of locating pieces, every group of locating piece comprises two right-angle triangles, and these two right-angle triangles, two identical right-angle sides overlap, hypotenuse is arranged in a crossed manner, and three groups of locating pieces point to sagittal section, coronal section and the cross-section tangent plane of phantom respectively.
Line is to formula high-contrast resolution test layer such as Figure 11 and shown in Figure 12, it contains a line, and (interval of width such as groove and partners to formula high-contrast resolution test assembly, be called line to), assembly is made up of card 11 groups of slot type lines, every group of wire casing with have three groups at least at interval, spatial frequency is 1LP/CM～11 LP/CM (lines right/centimetre).Contain center of circle locating slot in the test suite, summit of locating slot is denoted as the center of circle of test layer, conveniently positions.
Overflow layer such as Figure 15 and shown in Figure 16 comprise the neat liquid test suite, are made of above two any test layers or arbitrary test layer and base plate or the alternate neat liquid zone that is separated out of top board, and liquid constitutes and is equal to phantom dosing, region height 〉=20mm.The neat liquid assembly can be tested signal to noise ratio (S/N ratio), uniformity coefficient, the linearity, aspect ratio and geometric distortion.
During use, test layer is selected to be fixed in then on the pull bar, then right shrouding is fixed on the shell, phantom is put into general head coil, use positioning sequence scanning, check the alignment layers image, revise the location, rescan until guaranteeing the phantom level.Use conventional echo sequence to scan, set sweep parameter, scan the fault image of each test layer,, obtain each test parameter by each tomographic image of analytical calculation.
Claims (9)
1, a kind of magnetic resonance quality control integration test phantom, comprise shell and test layer, it is characterized in that: shell is provided with left shrouding and right shrouding, wherein the inboard is provided with align member on the shrouding, align member is made up of pull bar and sleeve, and pull bar is provided with screw thread and an end is fixed on the corresponding shrouding; Each test layer same position place is provided with and the pull bar corresponding positioning hole; Test layer is set on the pull bar, is arranged with sleeve on the pull bar between adjacent test layer, and outermost one test layer pull bar is provided with clamp nut.
2, magnetic resonance quality control integration test phantom according to claim 1, it is characterized in that: described test layer comprises bed thickness test layer, relaxation value test layer, contrast resolution's test layer, alignment layers and overflow layer.
3, magnetic resonance quality control integration test phantom according to claim 2, it is characterized in that: described bed thickness test layer includes two orthogonal test blocks, and each test block comprises two test slits, and this two tests slit space is staggered.
4, magnetic resonance quality control integration test phantom according to claim 2 is characterized in that: described relaxation value test layer comprises and is provided with testing tube on test board, and test fluid is housed in the testing tube.
5, magnetic resonance quality control integration test phantom according to claim 2, it is characterized in that: the contrast test layer comprises cellular type low contrast resolution test layer, has the instrument connection of different depth and different radii on the cellular type low contrast test layer.
6, magnetic resonance quality control integration test phantom according to claim 2, it is characterized in that: the contrast test layer comprises line to formula high-contrast test layer, line is provided with linear groove to formula high-contrast resolution test layer.
7, magnetic resonance quality control integration test phantom according to claim 6, it is characterized in that: high-contrast resolution test layer is provided with the centralized positioning groove, corresponding test layer center, centralized positioning groove one summit.
8, magnetic resonance quality control integration test phantom according to claim 2, it is characterized in that: described alignment layers comprises three groups of locating pieces, every group of locating piece comprises two right-angle triangles, these two right-angle triangles, two identical right-angle sides overlap, hypotenuse is arranged in a crossed manner, and three groups of locating pieces point to sagittal section, coronal section and the cross-section tangent plane of phantom respectively.
9, magnetic resonance quality control integration test phantom according to claim 1, it is characterized in that: shell is cylindric, and the plane at test layer place is parallel with the radial line of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201721233U CN201259533Y (en) | 2008-09-23 | 2008-09-23 | A magnetic resonance quality control integrated test phantom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201721233U CN201259533Y (en) | 2008-09-23 | 2008-09-23 | A magnetic resonance quality control integrated test phantom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201259533Y true CN201259533Y (en) | 2009-06-17 |
Family
ID=40773771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201721233U Expired - Fee Related CN201259533Y (en) | 2008-09-23 | 2008-09-23 | A magnetic resonance quality control integrated test phantom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201259533Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334991A (en) * | 2011-07-29 | 2012-02-01 | 泰山医学院 | Comprehensive test phantom for controlling quality of diffusion tensor magnetic resonance imaging |
| CN102478650A (en) * | 2010-11-29 | 2012-05-30 | 邱建峰 | Small-sized desktop type magnetic resonance quality control and comprehensive test phantom |
| CN103356194A (en) * | 2013-08-03 | 2013-10-23 | 南方医科大学 | Positioning component of multi-parameter testing phantom for magnetic resonance quality control and testing phantom |
| CN103598894A (en) * | 2013-11-28 | 2014-02-26 | 南方医科大学 | PET (positron emission tomography)/CT (computed tomography) image fusion precision testing phantom |
| CN104777237A (en) * | 2015-04-10 | 2015-07-15 | 上海和伍新材料科技有限公司 | Test block assembly for electric contact ultrasonic inspection of low-voltage apparatuses |
| CN103364753B (en) * | 2013-08-03 | 2015-08-19 | 南方医科大学 | A kind of magnetic resonance quality control multi-parameters test body mould |
| CN107544041A (en) * | 2016-06-29 | 2018-01-05 | 上海联影医疗科技有限公司 | Die body component is tested in magnetic resonance imaging |
| WO2018054024A1 (en) * | 2016-09-23 | 2018-03-29 | 泰山医学院 | Functional magnetic resonance imaging quality detection body model and method |
| CN108553117A (en) * | 2018-01-10 | 2018-09-21 | 余晓锷 | A kind of body mould of power spectrum CT picture qualities detection |
| CN108572341A (en) * | 2017-03-08 | 2018-09-25 | 安徽省立医院 | A kind of magnetic resonance imaging system quality control multi-parameter die body |
| CN108567438A (en) * | 2017-03-08 | 2018-09-25 | 安徽省立医院 | A kind of CT equipment quality control multi-parameter die body |
| CN109254020A (en) * | 2018-11-21 | 2019-01-22 | 江苏省计量科学研究院 | A kind of Micro-CT scanning image spatial resolution die body of included positioning device |
| CN109709505A (en) * | 2018-12-27 | 2019-05-03 | 潍坊新力超导磁电科技有限公司 | A kind of moisture film for superconducting magnetic resonance equipment |
| CN109856174A (en) * | 2018-12-27 | 2019-06-07 | 潍坊新力超导磁电科技有限公司 | A kind of line is to formula high contrast resolution test component and its fixed device of slide |
| CN110811621A (en) * | 2019-11-12 | 2020-02-21 | 山东第一医科大学(山东省医学科学院) | Comprehensive test phantom for controlling quality of magnetic resonance diffusion tensor imaging |
-
2008
- 2008-09-23 CN CNU2008201721233U patent/CN201259533Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478650B (en) * | 2010-11-29 | 2014-02-12 | 泰山医学院 | Small-sized desktop type magnetic resonance quality control and comprehensive test phantom |
| CN102478650A (en) * | 2010-11-29 | 2012-05-30 | 邱建峰 | Small-sized desktop type magnetic resonance quality control and comprehensive test phantom |
| CN102334991A (en) * | 2011-07-29 | 2012-02-01 | 泰山医学院 | Comprehensive test phantom for controlling quality of diffusion tensor magnetic resonance imaging |
| CN103364753B (en) * | 2013-08-03 | 2015-08-19 | 南方医科大学 | A kind of magnetic resonance quality control multi-parameters test body mould |
| CN103356194A (en) * | 2013-08-03 | 2013-10-23 | 南方医科大学 | Positioning component of multi-parameter testing phantom for magnetic resonance quality control and testing phantom |
| CN103598894A (en) * | 2013-11-28 | 2014-02-26 | 南方医科大学 | PET (positron emission tomography)/CT (computed tomography) image fusion precision testing phantom |
| CN103598894B (en) * | 2013-11-28 | 2016-05-11 | 南方医科大学 | A kind of PET/CT image co-registration accuracy test body mould |
| CN104777237A (en) * | 2015-04-10 | 2015-07-15 | 上海和伍新材料科技有限公司 | Test block assembly for electric contact ultrasonic inspection of low-voltage apparatuses |
| CN107544041A (en) * | 2016-06-29 | 2018-01-05 | 上海联影医疗科技有限公司 | Die body component is tested in magnetic resonance imaging |
| US10393846B2 (en) | 2016-09-23 | 2019-08-27 | Taishan Medical University | Functional magnetic resonance imaging quality detection phantom and method |
| WO2018054024A1 (en) * | 2016-09-23 | 2018-03-29 | 泰山医学院 | Functional magnetic resonance imaging quality detection body model and method |
| CN108572341A (en) * | 2017-03-08 | 2018-09-25 | 安徽省立医院 | A kind of magnetic resonance imaging system quality control multi-parameter die body |
| CN108567438A (en) * | 2017-03-08 | 2018-09-25 | 安徽省立医院 | A kind of CT equipment quality control multi-parameter die body |
| CN108553117A (en) * | 2018-01-10 | 2018-09-21 | 余晓锷 | A kind of body mould of power spectrum CT picture qualities detection |
| CN109254020A (en) * | 2018-11-21 | 2019-01-22 | 江苏省计量科学研究院 | A kind of Micro-CT scanning image spatial resolution die body of included positioning device |
| CN109254020B (en) * | 2018-11-21 | 2023-09-22 | 江苏省计量科学研究院 | From microscopic CT image spatial resolution die body of taking positioner |
| CN109709505A (en) * | 2018-12-27 | 2019-05-03 | 潍坊新力超导磁电科技有限公司 | A kind of moisture film for superconducting magnetic resonance equipment |
| CN109856174A (en) * | 2018-12-27 | 2019-06-07 | 潍坊新力超导磁电科技有限公司 | A kind of line is to formula high contrast resolution test component and its fixed device of slide |
| CN109856174B (en) * | 2018-12-27 | 2020-01-31 | 潍坊新力超导磁电科技有限公司 | line pair type high contrast resolution testing assembly and slide fixing device thereof |
| CN110811621A (en) * | 2019-11-12 | 2020-02-21 | 山东第一医科大学(山东省医学科学院) | Comprehensive test phantom for controlling quality of magnetic resonance diffusion tensor imaging |
| CN110811621B (en) * | 2019-11-12 | 2023-06-23 | 山东第一医科大学(山东省医学科学院) | Magnetic resonance diffusion tensor imaging quality control comprehensive test phantom |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201259533Y (en) | A magnetic resonance quality control integrated test phantom | |
| CN201259534Y (en) | Magnetic resonance quality control integrated test phantom | |
| CN103356194B (en) | Positioning component of multi-parameter testing phantom for magnetic resonance quality control and testing phantom | |
| CN103364753B (en) | A kind of magnetic resonance quality control multi-parameters test body mould | |
| CN204679618U (en) | A kind of three-dimensional orthogonal coil device of field homogeneity distribution | |
| CN103308033A (en) | Apparatus for measuring trend and plunge | |
| JPS6053836A (en) | Phantom for nmr image pickup device | |
| US7443164B2 (en) | Methods and apparatus for measuring magnetic field homogeneity | |
| BR102012029556A2 (en) | Magnetizing device for magnetic core flow meter | |
| EP2286258A1 (en) | Anisotropic diffusion phantom for calibration of diffusion tensor imaging pulse sequences used in mri | |
| JP2001087245A (en) | Unified shimming for magnetic resoance superconducting magnet | |
| CN102478650B (en) | Small-sized desktop type magnetic resonance quality control and comprehensive test phantom | |
| CN202329505U (en) | Position error inspection jig | |
| CN203365665U (en) | Magnetic resonance quality control multiparameter testing phantom | |
| US20130174667A1 (en) | Magnet module for a nuclear magnetic flow meter | |
| US8072217B2 (en) | Magnetic resonance phantom systems and methods | |
| CN107726955B (en) | Multifunctional altimeter measuring head | |
| CN203365664U (en) | Positioning member for magnetic resonance quality control multiparameter testing phantom and phantom thereof | |
| JPS60194339A (en) | Nuclear magnetic resonance apparatus | |
| CN103197400B (en) | Method for high-precision leveling of ridge of right-angle reflecting prism by adopting leveling device | |
| CN116203492B (en) | Gradient coil linearity testing device | |
| Mattila et al. | Phantom‐based evaluation of geometric distortions in functional magnetic resonance and diffusion tensor imaging | |
| CN110253802A (en) | A kind of cylindrical capacitive detection device detecting the micro- plastics in ocean | |
| CN214224102U (en) | Detection apparatus for detect a plurality of equipment levelness simultaneously | |
| CN214702096U (en) | Swimming pool filter core straightness tester that hangs down |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20110923 |