CN208048731U - Contrast medium concentration test device and scanning device - Google Patents
Contrast medium concentration test device and scanning device Download PDFInfo
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- CN208048731U CN208048731U CN201720795280.9U CN201720795280U CN208048731U CN 208048731 U CN208048731 U CN 208048731U CN 201720795280 U CN201720795280 U CN 201720795280U CN 208048731 U CN208048731 U CN 208048731U
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- contrast medium
- medium concentration
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Abstract
The utility model provides a kind of contrast medium concentration test device and scanning device,It is related to Medical Devices equipment technology field,Including test die body and multiple testing tubes,The contrast agent of various concentration is provided in testing tube,It includes standard portion and comparison portion to test die body,Standard portion includes pedestal,Upper cover and coaming plate,Pedestal,Upper cover and coaming plate form accommodating chamber,Testing tube passes through upper cover to be arranged in accommodating chamber,Testing tube is set in the cylinder shape groove in comparison portion,Be passed through into accommodating chamber air be background as standard value,The CT values of air are 0,It simulates using human muscle as the test environment of background in comparison portion,Standard portion and comparison portion are scanned simultaneously,Test out the CT values and standard deviation of the contrast medium concentration in different testing tubes,It calculates signal-to-noise ratio center and carries noise ratio,Obtain the optimal balance point between the quality of image and concentration,Work out more optimized enhancing sweeping scheme,Reduce the injury to human body.
Description
Technical field
The utility model is related to Medical Devices equipment technology field, more particularly, to a kind of contrast medium concentration test device and
Scanning device.
Background technology
CT (Computed Tomography), i.e. CT scan, are penetrated using the X-ray beam of Accurate collimation, γ
Line, ultrasonic wave etc. make profile scanning one by one together with the detector high with sensitivity around a certain position of human body,
It is fast with sweep time, the features such as image clearly, it can be used for the inspection of a variety of diseases, test die body currently on the market is with water mould
Based on, it is to evaluate the imaging effect of CT instruments the case where decaying under x-ray by water or air, contrast agent (also known as compares
Agent, contrast media) it is to inject (or taking) to tissue or the chemistry system of organ for enhancing Imaging Study effect
The density of product, these products is higher or lower than surrounding tissue, and the comparison of formation shows image with certain instruments, as x-ray observation is normal
Operand, barium sulfate etc..
Contrast agent dosage is to cause the independent hazard factor of radiographic contrast nephropathy, and contrast agent dosage is proposed according to Cigarroa etc.
Calculation formula：5ml × weight (Kg)/Cr (mg/dl), research on maximum utilized quantity are no more than 300ml, are more than research on maximum utilized quantity radiographic contrast nephropathy
Incidence is 21%-37%, be less than research on maximum utilized quantity incidence be 0%-2%, the research of low concentration contrast at present CT at
As field has become related hot spot, if the use of less contrast agent being current to be badly in need of solution while ensureing Imaging Study effect
Certainly the problem of.
Utility model content
The purpose of this utility model is to provide a kind of contrast medium concentration test devices, compare the radiography under various concentration
The difference of signal-to-noise ratio and the noise ratio of agent selects optimum contrast medium concentration for CT while ensureing Imaging Study effect
Enhancing scanning.
To realize that the purpose of this utility model adopts the following technical scheme that.
Contrast medium concentration test device provided by the utility model, including test die body and at least one testing tube；
The contrast agent of various concentration is provided in each testing tube；
The test die body is cylinder, and the test die body includes standard portion and comparison portion；
The standard portion includes pedestal, upper cover and coaming plate；
The pedestal, the upper cover and the coaming plate form accommodating chamber, and at least one mounting hole is provided on the upper lid；
The testing tube is arranged in a one-to-one correspondence across the mounting hole in the accommodating chamber；
It is provided with cylinder shape groove in the comparison portion, each testing tube is set in the cylinder shape groove.
It should be noted that test die body is cylinder, test die body includes standard portion and comparison portion, and standard portion includes bottom
Seat, upper cover and coaming plate, pedestal, upper cover and coaming plate form accommodating chamber, are provided with multiple mounting holes on upper lid, testing tube is arranged through
The mounting hole is arranged in a one-to-one correspondence in the accommodating chamber, and cylinder shape groove is provided in comparison portion, and testing tube is set to institute
It states in groove, air is passed through into accommodating chamber and is arranged to air background as standard value, the CT values of air are 0, the simulation of comparison portion
Using human muscle as the test environment of background, standard portion and comparison portion are scanned simultaneously, including conventional enhancing scanning and power spectrum increase
Strong scanning, tests out the CT values and standard deviation of the contrast medium concentration in different testing tubes, calculates signal-to-noise ratio center and carries noise ratio,
It selects optimum contrast medium concentration for CT to enhance while ensureing Imaging Study effect to scan, reduces the wound to human body
Evil.
In any of the above-described technical solution, it is preferred that it is provided at least one first fixed part on the pedestal, described
One fixed part is matched with the bottom of the testing tube.
In the technical scheme, multiple first fixed parts, the bottom phase of the first fixed part and testing tube are provided on pedestal
Testing tube is fixed in test die body, improves stability during the test, prevent testing tube from shaking by cooperation.
In any of the above-described technical solution, it is preferred that it is solid that the bottom surface of the cylinder shape groove is provided at least one second
Determine portion, second fixed part is matched with the bottom of the testing tube.
In the technical scheme, the bottom surface of cylinder shape groove is provided with multiple second fixed parts, the second fixed part and test
The bottom of pipe matches, and testing tube is fixed in test die body, stability during the test is improved, prevents testing tube
It shakes.
In any of the above-described technical solution, it is preferred that multiple testing tubes circumferentially array on the test die body
Distribution.
In the technical scheme, multiple testing tubes circumferentially array distribution on test die body, carries out to test die body
Reach uniform scanning when conventional enhancing scanning and power spectrum enhancing scanning, ensures the accuracy of sweep parameter.
In any of the above-described technical solution, it is preferred that be provided with water filling port, the water filling port and the appearance on the coaming plate
Chamber of receiving is connected.
Further, it is provided with sealing-plug on the water filling port.
Further, the sealing-plug is rubber stopper.
In the technical scheme, water filling port is provided on coaming plate, water filling port is connected with the accommodating chamber, into accommodating chamber
It is passed through water and is arranged to water background as standard value, the CT values of water are 0, and comparison portion is simulated using human muscle as the test wrapper of background
Standard portion and comparison portion are scanned in border simultaneously, including conventional enhancing scanning and power spectrum enhancing scanning, test out in different testing tubes
Contrast medium concentration CT values and standard deviation, calculate signal-to-noise ratio center and carry noise ratio, while ensureing Imaging Study effect
It selects optimum contrast medium concentration for CT to enhance to scan, reduces the injury to human body, sealing-plug is provided on water filling port,
The water-tight accuracy for ensureing test result in test process.
In any of the above-described technical solution, it is preferred that the test die body is made of photosensitive resin material integrated molding.
In the technical scheme, the precision for testing die body is high, is printed and is manufactured using 3D (Three Dimensions), selected
Photosensitive resin material is made, and includes mainly oligomer, reactive diluent and photoinitiator, photoinitiator in photosensitive resin material
It is the specific groups for exciting photosensitive resin cross-linking reaction, when the photon effect by specific wavelength, can becomes with height work
Property free group, act on the high molecular polymer of base-material, make its generate cross-linking reaction, become from original linear polymer
Network polymers, formed precision is high, curing rate is fast, lower light exposure can rapid curing, surface drying is had excellent performance, after molding
Product appearance is smooth, can present and be clear to translucent frosted shape, with high rigidity and high intensity.
The utility model additionally provides a kind of scanning device, including any one contrast agent provided in above-described embodiment is dense
Spend test device.
Further, the scanning device is CT machines.
The utility model provides a kind of contrast medium concentration test device and scanning device, including test die body and multiple surveys
Test tube is provided with the contrast agent of various concentration in testing tube, and test die body includes standard portion and comparison portion, and standard portion includes bottom
Seat, upper cover and coaming plate, pedestal, upper cover and coaming plate form accommodating chamber, and testing tube passes through upper cover to be arranged in accommodating chamber, and testing tube is set
It is placed in the cylinder shape groove in comparison portion, it is that be used as standard value, the CT values of air be 0 to background that air is passed through into accommodating chamber,
Comparison portion is simulated using human muscle as the test environment of background, is scanned simultaneously to standard portion and comparison portion, is tested out different tests
The CT values and standard deviation of contrast medium concentration in pipe calculate signal-to-noise ratio center and carry noise ratio, obtain the quality of image and concentration it
Between optimal balance point, work out more optimized enhancing sweeping scheme, reduce the injury to human body.
The additional aspect and advantage of the utility model will become apparent in following description section, or new by this practicality
The practice of type is recognized.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the dimensional structure diagram of contrast medium concentration test device provided by the utility model；
Fig. 2 is the sectional view of contrast medium concentration test device shown in FIG. 1；
Fig. 3 is the dimensional structure diagram of test die body provided by the utility model；
Fig. 4 is the sectional view of test die body shown in Fig. 3.
Icon：1- tests die body；2- testing tubes；11- pedestals；12- upper covers；13- coaming plates；14- accommodating chambers；15- mounting holes；
The first fixed parts of 16-；17- water filling ports；18- cylinder shape grooves；The second fixed parts of 19-.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Hereinafter, the structure based on description of the drawings the utility model.
Fig. 1 is the dimensional structure diagram of contrast medium concentration test device provided by the utility model；Fig. 2 is shown in Fig. 1
Contrast medium concentration test device sectional view；Fig. 3 is the dimensional structure diagram of test die body provided by the utility model；Figure
4 be the sectional view shown in Fig. 3 for testing die body.
As shown in Figures 1 to 4, the utility model provides a kind of contrast medium concentration test device, including test 1 He of die body
At least one testing tube 2；
The contrast agent of various concentration is provided in each testing tube；
The test die body is cylinder, and the test die body includes standard portion and comparison portion；
The standard portion includes pedestal 11, upper cover 12 and coaming plate 13；
The pedestal, the upper cover and the coaming plate form accommodating chamber 14, and at least one installation is provided on the upper lid
Hole 15；
The testing tube is arranged in a one-to-one correspondence across the mounting hole in the accommodating chamber；
It is provided with cylinder shape groove 18 in the comparison portion, each testing tube is set in the cylinder shape groove.
The utility model provides a kind of contrast medium concentration test device, including test die body and multiple testing tubes, test
The contrast agent of various concentration is provided in pipe, test die body includes standard portion and comparison portion, and standard portion includes pedestal, upper cover and encloses
Plate, pedestal, upper cover and coaming plate form accommodating chamber, and testing tube passes through upper cover to be arranged in accommodating chamber, and testing tube is set to comparison portion
In cylinder shape groove in, it is that be used as standard value, the CT values of air be 0 to background that air is passed through into accommodating chamber, and comparison portion is simulated
Using human muscle as the test environment of background, standard portion and comparison portion are scanned simultaneously, test out the radiography in different testing tubes
The CT values and standard deviation of agent concentration calculate signal-to-noise ratio center and carry noise ratio, obtain best flat between the quality of image and concentration
Weigh point, works out more optimized enhancing sweeping scheme, reduces the injury to human body.
As shown in figure 4, in one embodiment of the utility model, it is preferred that be provided on the pedestal at least one
First fixed part 16, first fixed part are matched with the bottom of the testing tube.
In this embodiment, multiple first fixed parts, the bottom matching of the first fixed part and testing tube are provided on pedestal
It closes, testing tube is fixed in test die body, stability during the test is improved, prevents testing tube from shaking.
As shown in figure 4, in one embodiment of the utility model, it is preferred that the bottom surface of the cylinder shape groove is arranged
There are at least one second fixed part 19, second fixed part to be matched with the bottom of the testing tube.
In this embodiment, the bottom surface of cylinder shape groove is provided with multiple second fixed parts, the second fixed part and testing tube
Bottom match, by testing tube be fixed on test die body in, improve stability during the test, prevent testing tube from shaking
It is dynamic.
As shown in Figure 1, in one embodiment of the utility model, it is preferred that multiple testing tubes are in the test
Circumferentially array distribution on die body.
In this embodiment, multiple testing tubes circumferentially array distribution on test die body, test die body is carried out it is normal
Reach uniform scanning when rule enhancing scanning and power spectrum enhancing scanning, ensures the accuracy of sweep parameter.
As shown in Figures 1 to 4, in one embodiment of the utility model, it is preferred that be provided with water filling on the coaming plate
Mouthful, the water filling port 17 is connected with the accommodating chamber.
Further, it is provided with sealing-plug on the water filling port.
Further, the sealing-plug is rubber stopper.
In this embodiment, water filling port is provided on coaming plate, water filling port is connected with the accommodating chamber, leads into accommodating chamber
Entering water and is arranged to water background as standard value, the CT values of water are 0, and comparison portion is simulated using human muscle as the test environment of background,
Standard portion and comparison portion are scanned simultaneously, including conventional enhancing scanning and power spectrum enhancing scanning, is tested out in different testing tubes
The CT values and standard deviation of contrast medium concentration calculate signal-to-noise ratio center and carry noise ratio, selected while ensureing Imaging Study effect
With optimum contrast medium concentration for CT enhancing scannings, reduces the injury to human body, be provided with sealing-plug on water filling port, surveying
The water-tight accuracy for ensureing test result during examination.
In one embodiment of the utility model, it is preferred that the test die body using photosensitive resin material one at
Type is made.
In this embodiment, the precision for testing die body is high, is manufactured using 3D printing, selects photosensitive resin material to be made, light
Include mainly oligomer, reactive diluent and photoinitiator in quick resin material, photoinitiator is excitation photosensitive resin crosslinking
The specific groups of reaction can become the free group with high activity, act on when the photon effect by specific wavelength
The high molecular polymer of base-material makes it generate cross-linking reaction, becomes network polymers, formed precision from original linear polymer
It is high, curing rate is fast, lower light exposure can rapid curing, surface drying has excellent performance, and product appearance is smooth after molding, can present
It is clear to translucent frosted shape, with high rigidity and high intensity.
Contrast medium concentration test device provided by the utility model can be composed of, together above-mentioned various embodiments
Sample can play above-mentioned effect.
The utility model additionally provides a kind of scanning device, including any one contrast agent provided in above-mentioned technical proposal
Concentration determination device.
Further, the scanning device is CT machines.
The test process of contrast medium concentration test device provided by the utility model：By contrast agent solution (content of iodine
Normal saline dilution 270mg/ml) is used to be marked successively loaded in 20ml duroplasts tube body moulds at 6 kinds of different concentration (mg/ml)
It it is 1~No. 6, concentration (mg/ml) is followed successively by 2.1,4.42,8.71,12.85,16.87,20.77；
Conventional enhancing scanning and power spectrum enhancing scanning are carried out using CT machines, is all made of helical scanning, bulb rotary speed
0.7s/ weeks, screw pitch 0.984:1, FOV 28.4cm × 20cm, thickness 5mm, interlamellar spacing 5mm, conventional sweep mode select 80kv,
0-400mas, NI=11, FOV=25cm, thickness 0.625mm, energy-spectrum scanning mode select the Spectrum acquisition pattern of 260MA, sense
Region of interest is 22 (m2), the contrast agent for testing various concentration is in CT values and standard deviation under varying environment, calculates signal-to-noise ratio
(SNR：SIGNAL NOISE RATIO) center and carry noise ratio (CNR：Carrier Noise Ratio), duplicate measurements three times,
To assess repeatability.
The utility model provides a kind of contrast medium concentration test device and scanning device, including test die body and multiple surveys
Test tube is provided with the contrast agent of various concentration in testing tube, and test die body includes standard portion and comparison portion, and standard portion includes bottom
Seat, upper cover and coaming plate, pedestal, upper cover and coaming plate form accommodating chamber, and testing tube passes through upper cover to be arranged in accommodating chamber, and testing tube is set
It is placed in the cylinder shape groove in comparison portion, it is that be used as standard value, the CT values of air be 0 to background that air is passed through into accommodating chamber,
Comparison portion is simulated using human muscle as the test environment of background, is scanned simultaneously to standard portion and comparison portion, is tested out different tests
The CT values and standard deviation of contrast medium concentration in pipe calculate signal-to-noise ratio center and carry noise ratio, in energy-spectrum scanning with photosensitive resin
For in ambient noise, contrast medium concentration is higher, signal-to-noise ratio is better, and load noise is higher than also, is ensureing the same of Imaging Study effect
The optimum contrast medium concentrations of Shi Xuanyong reduce the injury to human body, for different type of machines CT with more for CT enhancing scannings
Objective standard is scanned the optimization of parameter；Permissible Radiographer is swept repeatedly using different technical parameters
It retouches, obtains the optimal balance point between the quality of image and concentration, work out more optimized enhancing sweeping scheme.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of contrast medium concentration test device, which is characterized in that including test die body and at least one testing tube；
The contrast agent of various concentration is provided in each testing tube；
The test die body is cylinder, and the test die body includes standard portion and comparison portion；
The standard portion includes pedestal, upper cover and coaming plate；
The pedestal, the upper cover and the coaming plate form accommodating chamber, and at least one mounting hole is provided on the upper lid；
The testing tube is arranged in a one-to-one correspondence across the mounting hole in the accommodating chamber；
It is provided with cylinder shape groove in the comparison portion, each testing tube is set in the cylinder shape groove.
2. contrast medium concentration test device according to claim 1, which is characterized in that be provided at least one on the pedestal
A first fixed part, first fixed part are matched with the bottom of the testing tube.
3. contrast medium concentration test device according to claim 1, which is characterized in that the bottom surface of the cylinder shape groove is set
It is equipped at least one second fixed part, second fixed part is matched with the bottom of the testing tube.
4. contrast medium concentration test device according to claim 1, which is characterized in that multiple testing tubes are in the survey
Circumferentially array distribution on die trial body.
5. contrast medium concentration test device according to claim 1, which is characterized in that be provided with water filling on the coaming plate
Mouthful, the water filling port is connected with the accommodating chamber.
6. contrast medium concentration test device according to claim 5, which is characterized in that be provided with sealing on the water filling port
Plug.
7. contrast medium concentration test device according to claim 6, which is characterized in that the sealing-plug is rubber stopper.
8. contrast medium concentration test device according to claim 1, which is characterized in that the test die body uses photosensitive tree
The integrated molding of fat material is made.
9. a kind of scanning device, which is characterized in that surveyed including contrast medium concentration according to any one of claim 1 to 8
Trial assembly is set.
10. scanning device according to claim 9, which is characterized in that the scanning device is CT machines.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720795280.9U CN208048731U (en) | 2017-07-03 | 2017-07-03 | Contrast medium concentration test device and scanning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720795280.9U CN208048731U (en) | 2017-07-03 | 2017-07-03 | Contrast medium concentration test device and scanning device |
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| CN208048731U true CN208048731U (en) | 2018-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111345836A (en) * | 2020-03-06 | 2020-06-30 | 济南华宇新铸锻材料有限公司 | CT/MR customized image omics quality control die body |
-
2017
- 2017-07-03 CN CN201720795280.9U patent/CN208048731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111345836A (en) * | 2020-03-06 | 2020-06-30 | 济南华宇新铸锻材料有限公司 | CT/MR customized image omics quality control die body |
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