CN106510742A - Quality inspection body model suitable for digital subtraction angiography, and detection method - Google Patents
Quality inspection body model suitable for digital subtraction angiography, and detection method Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
Abstract
The invention discloses a quality inspection body model suitable for digital subtraction angiography, and a detection method. The quality inspection body model comprises a U-shaped block, a socket module, a step module and a skeleton module which are sequentially stacked from bottom to top, wherein a jack is arranged in the socket module, a replaceable simulation module is arranged in the jack, and the replaceable simulation module comprises an artery blood vessel simulation module, a heart coronary artery simulation module, a carotid artery simulation module and a renal artery simulation module; and a resolution test module can be further placed in the socket module. The quality inspection body model further comprises a blank module and a mark module, wherein the blank module is used as a control group of the artery blood vessel simulation module and placed on the same plane with the artery blood vessel simulation module; and the mark module works cooperatively with the resolution test module. The quality inspection body model disclosed by the invention is close to a real case to a greater extent during detection because of being provided with the modules for simulating the carotid artery, renal artery and coronary artery diseases of a human body, thus more representative data is provided for quality inspection.
Description
Technical field
The present invention relates to a kind of quality testing body mould and detection method suitable for Technology of Digital Subtraction Angiography.
Background technology
Digital subtraction angiography (DSA) is a kind of medical imaging apparatus for being widely used in angiocardiography inspection, is led to
Cross intravascular injection iodine contrast medium and computer picture subtracts shadow and realizes vascular test.The blood vessel imaging effect of DSA directly determines blood vessel
The Detection capability of disease, the at present detection to DSA blood vessel imaging abilities can be realized by the test of body mould.But current DSA inspections
Survey body mould to be only capable of carrying out the image checking of fundamental simulation blood vessel, it is impossible to carry out into the blood vessel of specificity, specificity and 3-dimensional structure
As ability is detected.
The content of the invention
The purpose of the present invention is exactly to solve the above problems, there is provided suitable for the matter of Technology of Digital Subtraction Angiography
Amount detection body mould and detection method, realize the imaging capability detection of specificity, specificity and 3-dimensional vascular morphology.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography, including the U for stacking successively from top to bottom
Type block, jack module, ladder module and bone module, the jack module are provided with jack, are provided with replaceable simulation in jack
Module, the replaceable analog module include arteries analog module, heart coronary artery analog module, arteria carotis simulation mould
Block and arteria renalis analog module；Resolution test module can also be placed in the jack module；Also include blank module and mark
Note module, control group of the blank module as arteries analog module are placed on arteries analog module same flat
On face；The mark module and resolution test module cooperating.
The mark module is a cuboid waterglass plate, has a unfilled corner for just determining the module in the upper left corner
Really putting position, is all embedded with a spongy lead where its surface distance is per 1cm.
The heart coronary artery analog module includes two pieces of bath of glass substrates, is carved with each described bath of glass substrate
Imitative heart groove, the shape of the imitative heart groove on two pieces of bath of glass substrates are respectively 60 ° of heart coronary artery LAO and the right side
First oblique 30 ° of projection of shape；Stearic material filled with contrast medium and emulation obstruction in the imitative heart groove.
Imitative heart groove includes left and right, left and right upper You Liangge branch respectively；Right the first branch and a left side
Be respectively equipped with the stearic material of emulation obstruction in the first branch, in each branch, have three sections of obstructions respectively, degree of congestion according to
Secondary is 25%, 50%, 75%.
The arteries analog module into cuboid-type, its surface be provided with simulation caliber be 0.1cm, 0.2cm,
Arterial vascular three grooves of 0.4cm；Comprising a circle for emulating aneurysmal diameter 1cm in every groove.
It is designed with emulating artery contrast medium in three grooves, concentration is respectively 25%, 50%, 75%, and iodine concentration is 15mg/
ml；The contrast medium of different levels of iodine is provided with three circles, and iodine concentration is respectively 1.5mg/ml, 3mg/ml, 6mg/ml.
The arteria carotis analog module includes into the waterglass plate of cuboid-type, is embedded with one section of detachable water inside which
Glass cylinder, the waterglass cylinder are fixed in waterglass plate by gear, and the waterglass cylinder inner sealing has
The carotid artery model that one 3D printer makes；The carotid sinus portion of the carotid artery model is by arteria carotis communis to ophthalmic artery
Imitated out 25% successively on three models respectively using stearic matter, 50%, 75% 3 kind of congestion situations, and deposit in its inwall
In the aluminium flake pasted, for imitating patch, and carotid artery model interior sealing contrast preparation.
The arteria renalis analog module includes two groups of analog modules of A, B, and A groups analog module imitates Atheromatosis
Become, B groups imitate aorto-arteritis pathology；Every group of analog module has three pieces of waterglass substrates, is carved with one on every piece of waterglass substrate
The imitative arteria renalis groove of bar；Be filled with contrast medium in imitative arteria renalis groove, the opening diameter for imitating arteria renalis groove is 0.7cm, imitate with
The arteria renalis is out of shape downwards, and diameter progressively reduces, and distal opening size is 0.05cm；
It is narrow or dynamic that imitating per bar in A group analog modules is provided with patch at the turning away from opening 2cm in arteria renalis groove
Phleboedesis blocks, and the degree of congestion of three imitative arteria renalis grooves is respectively 25%, 50%, 75%；
Internally symmetric position is provided with obstruction, three imitative arteria renalis to arteria renalis groove of imitating per bar in B group analog modules
Groove arranges the position of obstruction and is set gradually from initial part downwards, and the degree of congestion of three imitative arteria renalis grooves is also respectively
25%th, 50%, 75%.
Using a kind of detection method of described quality testing body mould suitable for Technology of Digital Subtraction Angiography, wrap
Include：
When carrying out air kerma rate test, ladder module is combined into into cuboid, the blank of resolution test module
Partial insertion socket module above-mentioned cuboid is placed on above socket module is combined into size for the uniform of 20*20*15cm
Cube, the uniform cube is lain in a horizontal plane on catheter bed, and in the visual field in image exploring block, to simulate 15cm's
People's body thickness；
The Multi-functional probe of Baracuda X-ray analyzers is positioned over into the top of uniform cube, and makes X-ray detection X face
Towards bulb direction；
Focus-skin distance is set to into maximum, is raised catheter bed, Multi-functional probe is made near image exploring block；
It is exposed using perspective and drainage pattern respectively, the visual field is input into according to the image detector of selected exposure mode
Difference be exposed measurement respectively, will be conditions of exposure record clear, read selected by the air ratio that exposes under exposure mode release
Kinetic energy rate；It is determined that expose the quantity of the image of generation under selected exposure mode, with the air kerma rate that measures divided by shadow
The quantity of picture, obtains the air kerma rate of every width image.
Also include：
When carrying out contrast uniformity and dynamic range test, ladder module is combined into into ladder, together with bone module
It is placed in jack module；Bone in the ladder and bone module of ladder module is vertical with the blood vessel of arteries analog module；Clap
Whether uniform the blood vessel image through bone and ladder is observed after taking the photograph image and observe the most thin blood vessel that can be seen clearly；Mobile arteries
Analog module is placed in blank module in the visual field, observes the step number that can be seen clearly；The higher the better for exponent number；
When carrying out subtraction artefacts：Ladder module is combined, people's body thickness of 15cm is simulated；By bone module and artery
Blood vessel simulation module is placed in ladder module；Subtract；It is whether visible in observation image
The edge of circular hole, if then showing that imaging system is unstable.
Beneficial effects of the present invention
Room for improvement resolution ratio card of the present invention, is more accurately positioned using mark module, is imitated using focus analog module
Focus development under full-scale condition.
The present invention is provided with the module of simulated humanbody arteria carotis, the arteria renalis, coronary artery pathological changes so that the more great Cheng in detection
The close true case of degree, provides more representational data for quality testing.
Mark module is crossed as " well " font as mark using spongy lead is embedded, and being ensured with this when carrying out quality testing can be with
Reference images, accurately subtract shadow.
The present invention has higher scientific research, teaching value, as which is unique, novelty sets in business promotion
Meter is come out top.
The present invention devises the emulation module of 3-dimensional emulation arteria carotis, projection simulation coronary artery and the arteria renalis, realizes spy
The imaging capability detection of the opposite sex, specificity and 3-dimensional vascular morphology.
Description of the drawings
Fig. 1 is the overall structure exploded view of the present invention；
Structure charts of the Fig. 2 for ladder module；
Upward views of the Fig. 3 (a) for bone module, side views of the Fig. 3 (b) for bone module, Fig. 3 (c) are bone module
Top view；
Structure charts of the Fig. 4 for jack module；
Fig. 5 is mark module schematic diagram；
Fig. 6 is resolution test module；
Fig. 7 is arteries analog module；
Fig. 8 (a) is 60 ° of heart coronary artery analog modules of LAO；Oblique 30 ° of heart coronary arteries simulation before Fig. 8 (b) is right
Module
Fig. 9 is arteria carotis analog module；
Figure 10 is arteria renalis analog module.
Wherein, 1. ladder module, 2. bone module, 3. jack module, 4.U type blocks, 5. arteries analog module, 6. water
Glass cylinder, 7. carotid artery model.
Specific embodiment：
The present invention will be further described with embodiment below in conjunction with the accompanying drawings：
As shown in Figure 1-2, it is adaptable to the quality testing body mould of Technology of Digital Subtraction Angiography, by multiple rectangular modules
Combine, comprising ladder module 1, jack module 3, bone module 2, arteries analog module, resolution test module, disease
Stove analog module (heart coronary artery analog module, arteria carotis analog module and arteria renalis analog module), U-shaped piece 4.
The bottom of whole body mould of the invention is the square of long 20cm.
Ladder module 1.One cuboid, size is 20*20*7.5cm, constitutes junction by two parts each into a ladder
Block has three ladders, and two pieces add up and can be combined into a big ladder.The long 2.5cm of each ladder.
3 high 7.5cm of jack module, wide 15cm.2 high 2.5cm of bone module, rib of the bone for 3D printing.
Blank module collectively constitutes a die body block, long 45cm, wide 15cm, high 2.5cm with arteries analog module 5.
(resolution test module, arteries module are all blank except resolution chart, remaining place of vasculature part
Module)
U-shaped piece 4 is long 20cm, wide 15cm.
Base is done by U-shaped piece, other modules stack together, order is from down to up；U-shaped piece, jack module, joggle die
Block, bone module.
The present invention can test Technology of Digital Subtraction Angiography (DSA) system convention, simulated blood vessel and its focus and rib,
And resolution ratio, the uniformity can be carried out, subtract shape effect, registration accuracy test.
As shown in Fig. 3 (a)-Fig. 3 (c), the bone in bone module is that rib emulates body, is obtained using 3D printing technique,
For 20cm × 20cm × 2.5cm, using can carry out subtracting shadow.
Ladder module as shown in Fig. 2 each ladder 2.5cm, totally 6 ladders, can build up 20cm × 20cm × 7.5cm blocks,
Human body can be simulated together with jack module.It is uniform that ladder module image is used for the air kerma rate of detecting system, contrast
Property, dynamic range, subtraction artefacts.
Jack module as shown in figure 4, be 20cm × 20cm × 7.5cm, have 15cm × 20cm × 2.5cm slits thereon.
As shown in figure 5, mark module, is the waterglass plate of one 20cm × 15cm × 2.5cm, has one in its upper left corner
Length of side unfilled corner has a lead for determining the correct putting position of the module in length of its surface distance per 1cm
Line is embedded to be crossed as " well " font as mark, accurately subtracts shadow for reference images.Mark module and resolution test module
Jack module is inserted together, to calibration instrument.
As shown in fig. 6, resolution test module, is the waterglass plate of one 20cm × 15cm × 2.5cm, in its upper left corner
There is the unfilled corner of length of side 1cm for determining the correct putting position of the module, and in its front with centre of surface as the center of circle
There is the circular shallow slot of an a diameter of 9cm, determine that 0.05mmPb, the star test card of 0.6Lp/mm are pasted in position for calibrating
(2 degree of model JD-B).
As shown in fig. 7, arteries analog module, 45 × 15 × 2.5cm of module size, contrast medium can insert 0.1cm,
0.2cm, 0.4cm caliber arteries emulates groove part.Artery is emulated per bar can simulate aneurysm and arteriarctia.Emulation
Artery contrast medium (fat-soluble contrast medium iodized oil) concentration is respectively 25%, 50%, 75%, and iodine concentration is 15mg/ml.Every mould
Intend the arteries circle comprising a diameter 1cm, different iodine concentrations is included in each circle, for measuring the linearity, together
When emulate aneurysm, three circular gram iodine concentrations are 150,300,600mg/ml.
As shown in Fig. 8 (a) -8 (b), oblique 30 ° of projection of shape before 60 ° of modular simulation heart coronary artery LAO and the right side,
Contrast medium (bath of glass substrate) is inserted groove on substrate by recessed carving.Module size specification is：Upper end open 0.5cm,
Out of shape with blood vessel, diameter progressively reduces, and distal opening size is 0.05cm, is coronarography minimum openings in blood vessels.Emulation
Obstruction emulation part is provided with coronary artery module, and closed position is set as right the first branch with left the first branch, resistance
Plug degree be 25%, 50%, 75% 3 kind of situation.Obstruction artificial material is stearic material.
As shown in figure 9, waterglass plate of the arteria carotis analog module for one 20cm × 15.2cm × 5cm, in its inside center
There is detachable one section of a longitudinal diameter 35mm with cogged waterglass cylinder 6, (for making its arteria carotis interna model polygonal
Degree is presented, so be detachable structure by cylinder design, when the image of different angles is needed, can be by cylinder from waterglass
Inserting after extracting translation-angle in matrix out.Gear plays fixation.) one 9cm of closing inside waterglass cylinder 6 ×
The 3D carotid artery models 7 of 3cm × 2.5cm, are made by 3D printer.The carotid sinus portion of the carotid artery model by arteria carotis communis to
Ophthalmic artery has imitated out 25% using stearic matter, 50%, the obstruction of 75% 3 kind of situation, and have what is pasted in its inwall
Aluminium flake, for imitating patch, and its interior sealing contrast preparation.
The carotid wall thickness 0.09cm of the 3D carotid artery models, arteria carotis communis internal diameter are 0.675cm, Jing in internal carotid
For 0.55cm, external carotid artery internal diameter is 0.5cm, and carotid sinus portion internal diameter is 0.7cm, and carotid sinus minister degree is 1cm, and neck is always moved
Arteries and veins length 4.5cm, internal carotid length 3cm, external carotid artery length 2cm, this phantom thicknesses is in 2cm, therefore the carotid artery model
Size substantially 9cm × 3cm × 2cm.
As shown in Figure 10, (production method, with heart coronary artery analog module, is by corresponding size to arteria renalis analog module
The groove being carved on waterglass substrate, is inserted using contrast medium and simulates vasculature part along the groove of blood vessel traveling).Setting A,
Two groups of B (3/group) arteria renalis model vessel., to imitate atherosclerotic lesion, B groups are to aorto-arteritis pathology for A groups；
Three simulated blood vessels in per group, be respectively provided with 25%, 50%, 75% patch it is narrow or artery thickens obstruction, to respectively
Imitate it is light, in, weigh three kinds of different degrees of pathological conditions.Length is 5.0cm, and iodine concentration is 15/ml
The arterial vascular manufacturing specification of every analogue kidney is as follows
1. opening diameter is 0.7cm.Out of shape downwards with blood vessel, diameter progressively reduces.
2. it is 0.05cm to arrange distal opening size, is the minimum blood vessel width diameter of renal arteriography
A groups imitate the narrow of atherosclerotic renal artery stenosis initiation：It is narrow to typically occur at arteria renalis proximal part 2cm, and it is remote
Heart end or branch are seldom involved, therefore narrow design is designed narrow at opening 2cm turnings in the way of outside embedded obstruction.B
Group imitates aorto-arteritis from initial part, in the way of internal symmetry adheres to designs obstruction.
Using a kind of detection method of described quality testing body mould suitable for Technology of Digital Subtraction Angiography
When subtracting shadow and starting, wear safeguard station and arteries analog module, heart coronaries are moved behind division board
Arteries and veins analog module, arteria carotis analog module or arteria renalis analog module are at the uniform velocity pushed in jack module and subtract shadow effect to reach.Push away
When dynamic speed is to terminate to subtract shadow, module is completely into being defined in jack module.
Arteries analog module, heart coronary artery analog module, arteria carotis analog module, arteria renalis analog module,
Resolution test module can test Technology of Digital Subtraction Angiography (DSA) system convention, simulated blood vessel and its focus and rib,
And resolution ratio, the uniformity can be carried out, subtract shape effect, registration accuracy test.
Air kerma rate；Ladder module is combined into into the uniform cuboid of 20*20*7.5cm, resolution test module
Blank parts (gutter in resolution test module outside circular shallow slot) insertion socket module and above-mentioned cuboid is put
The uniform cube for being combined into that on socket module size is 20*20*15cm is put, the uniform cube is lain in a horizontal plane in into conduit
On bed, and in the visual field in image exploring block, people's body thickness of 15cm is simulated；
The Multi-functional probe of Baracuda X-ray analyzers is positioned over into the top of the uniform cube, and makes X-ray detection X
Facing to bulb direction；
Focus-skin distance SID is set to into maximum (120cm), catheter bed is raised, Multi-functional probe is visited as close to image
Survey part；
It is exposed using perspective and drainage pattern respectively, the visual field is input into according to the image detector of selected exposure mode
The difference of FOV exposes measurement respectively, will be conditions of exposure such as kV, mA, frame frequency record clear；The air ratio for reading current exposure is released
Energy rate；Expose the quantity of the image of generation under selected exposure mode, with the air kerma rate that measures divided by image number
Amount, obtains the air kerma rate of every width image.
Contrast uniformity and dynamic range：Ladder module is combined into into ladder, socket mould is placed in together with bone module
In block；Bone in the ladder and bone module of ladder module is vertical with the blood vessel of arteries analog module；See after shooting image
Examine the blood vessel image through bone and ladder whether uniform and observe the most thin blood vessel that can be seen clearly；Mobile arteries analog module will
Blank module is placed in the visual field, observes the step number that can be seen clearly；The higher the better for exponent number；
Subtraction artefacts：Ladder module is combined into into the uniform cube of 20*20*15cm, people's body thickness of 15cm is simulated；By bone
Bone module and arteries analog module are placed in ladder module；Subtract, i.e., with certainly
Figure picture carries out subtracting shadow, only should have system noise；The whether edge of visible circular hole in observation image, if then showing imaging
There is destabilizing factor in system.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to present invention protection model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
The various modifications made by needing to pay creative work or deformation are still within protection scope of the present invention.
Claims (10)
1. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography, is characterized in that, including from top to bottom successively
Stack U-shaped piece, jack module, ladder module and bone module, the jack module are provided with jack, are provided with and can replace in jack
Analog module is changed, the replaceable analog module includes arteries analog module, heart coronary artery analog module, arteria carotis
Analog module and arteria renalis analog module；Resolution test module can also be placed in the jack module；Also include blank mould
Block and mark module, control group of the blank module as arteries analog module, are placed on arteries analog module
On same plane；The mark module and resolution test module cooperating.
2. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 1, is characterized in that,
The mark module is a cuboid waterglass plate, has a unfilled corner in the upper left corner and correctly puts position for determine the module
Put, a spongy lead is all embedded with where its surface distance is per 1cm.
3. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 1, is characterized in that,
The heart coronary artery analog module includes two pieces of bath of glass substrates, is carved with imitative heart recessed on each described bath of glass substrate
Groove, oblique 30 ° before shape respectively 60 ° of the heart coronary artery LAO of the imitative heart groove on two pieces of bath of glass substrates and the right side
Projection of shape；Stearic material filled with contrast medium and emulation obstruction in the imitative heart groove.
4. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 3, is characterized in that,
Imitative heart groove includes left and right, left and right upper You Liangge branch respectively；First point of right the first branch and a left side
The stearic material of emulation obstruction is respectively equipped with, there are three sections of obstructions in each branch respectively, degree of congestion is followed successively by 25%,
50%th, 75%.
5. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 1, is characterized in that,
The arteries analog module is provided with artery of the simulation caliber for 0.1cm, 0.2cm, 0.4cm into cuboid-type on its surface
Three grooves of blood vessel；Comprising a circle for emulating aneurysmal diameter 1cm in every groove.
6. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 5, is characterized in that,
It is designed with emulating artery contrast medium in three grooves, concentration is respectively 25%, 50%, 75%, and iodine concentration is 15mg/ml；Three
The contrast medium of different levels of iodine is provided with circle, and iodine concentration is respectively 1.5mg/ml, 3mg/ml, 6mg/ml.
7. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 1, is characterized in that,
The arteria carotis analog module includes into the waterglass plate of cuboid-type, is embedded with one section of detachable waterglass cylinder inside which
Body, the waterglass cylinder are fixed in waterglass plate by gear, and the waterglass cylinder inner sealing has a 3D to beat
The carotid artery model that print mechanism is made；The carotid sinus portion of the carotid artery model is by arteria carotis communis to ophthalmic artery using stearic
Matter has imitated out 25% successively on three models respectively, 50%, 75% 3 kind of congestion situations, and have what is pasted in its inwall
Aluminium flake, for imitating patch, and carotid artery model interior sealing contrast preparation.
8. a kind of quality testing body mould suitable for Technology of Digital Subtraction Angiography as claimed in claim 1, is characterized in that,
The arteria renalis analog module includes two groups of analog modules of A, B, and A groups analog module imitates atherosclerotic lesion, and B groups are imitated
Aorto-arteritis pathology；Every group of analog module has three pieces of waterglass substrates, is carved with an imitative arteria renalis on every piece of waterglass substrate
Groove；Contrast medium is filled with imitative arteria renalis groove, and the opening diameter for imitating arteria renalis groove is 0.7cm, is imitated downward with the arteria renalis
Side is out of shape, and diameter progressively reduces, and distal opening size is 0.05cm；
Patch is narrow or artery increases for being provided with the turning away from opening 2cm in imitative arteria renalis groove per bar in A group analog modules
Thick obstruction, the degree of congestion of three imitative arteria renalis grooves are respectively 25%, 50%, 75%；
Internally symmetric position is provided with obstruction, three imitative arteria renalis grooves to arteria renalis groove of imitating per bar in B group analog modules
The position for arranging obstruction is set gradually from initial part downwards, the degree of congestion of three imitative arteria renalis grooves is also respectively 25%,
50%th, 75%.
9. using a kind of detection side of the quality testing body mould suitable for Technology of Digital Subtraction Angiography described in claim 1
Method, is characterized in that, including：
When carrying out air kerma rate test, ladder module is combined into into cuboid, the blank parts of resolution test module
Above-mentioned cuboid is placed on above socket module the uniform cube for being combined into that size is 20*20*15cm simultaneously for insertion socket module,
The uniform cube is lain in a horizontal plane on catheter bed, and in the visual field in image exploring block, to simulate the human body of 15cm
Thickness；
The Multi-functional probe of Baracuda X-ray analyzers is positioned over into the top of uniform cube, and make X-ray detection X facing to
Bulb direction；
Focus-skin distance is set to into maximum, is raised catheter bed, Multi-functional probe is made near image exploring block；
It is exposed using perspective and drainage pattern respectively, the visual field is input into not according to the image detector of selected exposure mode
With measurement is exposed respectively, will be conditions of exposure record clear, read the air kerma exposed under selected exposure mode
Rate；It is determined that expose the quantity of the image of generation under selected exposure mode, with the air kerma rate that measures divided by image
Quantity, obtains the air kerma rate of every width image.
10. method as claimed in claim 9, is characterized in that, also include：
When carrying out contrast uniformity and dynamic range test, ladder module is combined into into ladder, is placed in together with bone module
In jack module；Bone in the ladder and bone module of ladder module is vertical with the blood vessel of arteries analog module；Shooting figure
As whether rear observation is uniform through the blood vessel image of bone and ladder and observes the most thin blood vessel that can be seen clearly；Mobile arteries simulation
Module is placed in blank module in the visual field, observes the step number that can be seen clearly；The higher the better for exponent number；
When carrying out subtraction artefacts：Ladder module is combined, people's body thickness of 15cm is simulated；By bone module and arteries
Analog module is placed in ladder module；Subtract；Whether visible circular hole in observation image
Edge, if then showing that imaging system is unstable.
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Cited By (3)
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| CN107080552A (en) * | 2017-06-06 | 2017-08-22 | 泰山医学院 | A kind of body mould and its system, method for testing plurality of medical X-ray equipment image quality |
| CN107753052A (en) * | 2017-11-07 | 2018-03-06 | 四川中测辐射科技有限公司 | A kind of x-ray imaging dynamic contrast detection plate |
| CN110141261A (en) * | 2019-05-15 | 2019-08-20 | 深圳市洪诚嘉汇科技有限公司 | Digital subtraction angiography die body |
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| WO2012104735A1 (en) * | 2011-02-01 | 2012-08-09 | Koninklijke Philips Electronics N.V. | Spectral signal-to-noise ratio test for x-ray imaging |
| CN103584874A (en) * | 2013-11-26 | 2014-02-19 | 四川中测辐射科技有限公司 | DSA performance detecting body module |
| CN206342491U (en) * | 2016-10-19 | 2017-07-21 | 泰山医学院 | Suitable for the quality testing body mould of Technology of Digital Subtraction Angiography |
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| CN107080552A (en) * | 2017-06-06 | 2017-08-22 | 泰山医学院 | A kind of body mould and its system, method for testing plurality of medical X-ray equipment image quality |
| CN107753052A (en) * | 2017-11-07 | 2018-03-06 | 四川中测辐射科技有限公司 | A kind of x-ray imaging dynamic contrast detection plate |
| CN110141261A (en) * | 2019-05-15 | 2019-08-20 | 深圳市洪诚嘉汇科技有限公司 | Digital subtraction angiography die body |
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