CN103377480A - Medical image imaging system - Google Patents
Medical image imaging system Download PDFInfo
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- CN103377480A CN103377480A CN2012101053488A CN201210105348A CN103377480A CN 103377480 A CN103377480 A CN 103377480A CN 2012101053488 A CN2012101053488 A CN 2012101053488A CN 201210105348 A CN201210105348 A CN 201210105348A CN 103377480 A CN103377480 A CN 103377480A
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Abstract
The invention provides a medical image imaging system. In the system, an imaging method is characterized by: utilizing a personal computer to read CT-scanned data file information and volume data; extracting bone tissue pixels and skin pixels from the volume data; calculating the contour surface normal vectors of bone and skin respectively; setting color and transparency for both the bone and the skin; and adding the settings into a view window so that a complete image is formed. Through the CT medical image imaging method, three-dimensional CT image data is allowed to complete development, recombination, measurement, analysis and operation design and result rehearsal and analysis on the PC, so that a computer-based operation design is more flexible, convenient and operable.
Description
Technical field
The present invention relates to a kind of medical image imaging system, particularly a kind of CT medical image imaging system that can carry out to image personalized analysis.
Background technology
Present medical image imaging system generally is to be undertaken by scanning and the imaging system of spiral three-dimensional CT, at first undertaken by scanning and the imaging system of spiral three-dimensional CT, at first the scanning by spiral three-dimensional CT comes image data, then the workstation that these data communication devices are excessively large-scale is set up the medical 3 D electron image, and relevant three-dimensional data can be carved into common CD and preserve.This system forms medical image, three-D CT imaging and analytical work at present must be by large-scale workstation.The analysis of the workstation of this Price-dependent costliness, not only cost is high, and is not easy to the surgeon flexibly, independently each concrete case is carried out Extraordinary measurement, design and surgical simulation.
Another system is the image film that the X-ray two-dimensional measurement obtains two dimension, then by pixel stacking image technology, the image film of two dimension can be set up 3-D view after scanning.But it is accurate that two-dimensional measurement can not show a candle to three-dimensional measurement, can't carry out surgical simulation truly simultaneously.By film scanning two dimensional image is converted into 3-D view, it or not electron image, the accuracy of its information integrity and Measurement and analysis all can't be compared with the result of CT workstation, and the later stage patch work of carrying out for film scanning: the work such as noise filtering, framing and coupling also have suitable difficulty.This non-interactive mode is unfavorable for that the doctor can carry out perceptual comprehension and exchange for postoperative effect before operation with the patient, reaches common understanding.
Summary of the invention
The object of the present invention is to provide a kind of medical image imaging system, to overcome above-mentioned the deficiencies in the prior art, so that the image data of three dimensional CT can be finished video picture, restructuring, measurement, analysis and operation designing, result's preview and analysis at PC, thereby make the computing machine operation designing have more dirigibility, convenience and operability.
For achieving the above object, the invention provides a kind of medical image imaging system, it comprises: a utilizes personal computer to read the data file information of CT scan; B reads volume data; C extracts respectively bone tissue pixel and skin pixels from volume data; D calculates respectively bone and skin contour surface normal vector; E arranges respectively color, the transparency of bone and skin; F adds respectively form and forms complete image.
Another object of the present invention is to provide a kind of CT medical image imaging system that forms level, crown, sagittal plane section collection.Medical image imaging system according to this purpose comprises the steps that a utilizes personal computer to read the data file information of CT scan; B reads volume data; C arranges interpolative mode; D arranges heavy slicing parameter; E calculates respectively generation level, crown, sagittal plane section collection according to interpolative mode and slicing parameter.
Another purpose of the present invention is to provide a kind of medical image imaging system that shows and measure the image data of two-dimensional ct.Medical image imaging system according to this purpose comprises the steps: that a utilizes personal computer to read the data file information of CT scan; B reads the section pixel data; C shows two dimensional image at personal computer monitor; D utilizes the PC image processing function that two dimensional image is adjusted; E measures the various data between the two dimensional image pixel.
The dependence of CT workstation has been broken away from the foundation of PC three-D CT imaging and analytic system, has reduced job costs, makes the plastic surgeon flexibly, independently each concrete case is carried out Extraordinary measurement, design and surgical simulation.The application of interactive mode is conducive to the doctor can be carried out perceptual comprehension and exchange for postoperative effect before operation with the patient, reaches common understanding.The realization of three-dimensional measurement, the foundation of having established base image for setting up truly surgical simulation is that the conversion by the three dimensional CT data obtains, be electronic image truly, asemantic to lose with the accuracy of Measurement and analysis be consistent with the result of CT workstation.
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Description of drawings:
Fig. 1 is the process flow diagram that the present invention forms 3-dimensional image.
Fig. 2 is the process flow diagram that the present invention forms level, crown, sagittal plane section collection.
Fig. 3 is the process flow diagram that the present invention shows and measure bidimensional image.
Embodiment:
Relevant detailed description of the present invention and technology contents, existing as follows with regard to accompanying drawings:
At first consult Fig. 1, this is the process flow diagram that the present invention forms 3-dimensional image.Personal computer just begins read data files information 11 after the input file title, this category information is the information about the document format data aspect, include: file name pattern, quantity of documents, image documentation equipment type, data memory format, section pel spacing, section sheet interlayer spacing, the file name pattern here refers to preserve the definition rule of serial medical image data filename; The section pel spacing refers to that every section consists of the distance between two pixels of arbitrary neighborhood by a large amount of equidistantly pixels; The section sheet interlayer spacing refers to that medical image is made of the equally spaced section of multilayer, the distance between two sections of arbitrary neighborhood.After having read these corresponding document format data information, the mode that personal computer is just established according to these document format datas reads volume data 12.After having read in volume data, because skin has different characteristics with bone, for example the gray-scale value of the two pixel is different.Therefore the present invention extracts skin and bone tissue pixel respectively from the volume data that reads, and namely extracts bone tissue pixel 13 and extracts skin pixels 13.After skin and bone tissue pixel extracted respectively, computing machine just can be according to corresponding algorithm, such as surface rendering reconstruction algorithm etc., calculate respectively bone contour surface normal vector 14 and skin contour surface normal vector 14, the contour surface normal vector here refers to consist of contour surface by equal gray-scale value, and the normal line vector on this curved surface is called the contour surface normal vector.Just can make up the image of skeletonization and skin in conjunction with the volume data of reading in and the bone and the skin normal vector numerical value that calculate, according to these numerical value color, the transparency 15 of color, transparency and the skin of bone are set respectively, again these are set and add respectively form and just shown complete 3-D view 16 at display.In one embodiment, the three-dimensional space data file that read data files information adopted in 11 these steps is the electronic document of exporting from medical imaging devices such as CT, and the document is DICOM3.0 international standard form.In the present embodiment, the visualized algorithm of three-dimensional space data field adopts classical surface rendering algorithm.In above-mentioned three-dimensional reconstruction module, the GUI of the Marching Cubes algorithm of classics and the OpenGL program in the PC computing machine, Windows operating system is combined, can take full advantage of the existing programmable characteristics of video card, thereby reach the purpose that the accelerogram picture generates and shows.Simultaneously, adopt the multiple-level surface rendering technique, can show simultaneously bone tissue and soft tissue, such as skin etc., and color and transparency can be set respectively, formed the pseudo color image with aerial perspective.
See also Fig. 2, this is the process flow diagram that the present invention forms level, crown, sagittal plane section collection.Personal computer just begins read data files information 21 after the input file title, this category information is about the information of document format data aspect, includes: file name pattern, quantity of documents, image documentation equipment type, data memory format, section pel spacing, section sheet interlayer spacing.After having read these corresponding document format data information, the mode that personal computer is just established according to these document format datas reads volume data 22.After having read in volume data, different according to the requirement of the face section that generates, carry out interpolative mode and arrange 23, these interpolative mode have respectively: the closest approach interpolation, namely by from the value of closest approach as new interpolated value; Linear interpolation is namely carried out numerical value and the cubic interpolation that linear interpolation obtains by the value at interpolation point two ends, carries out respectively the numerical value that linear interpolation obtains by 8 points around the interpolation point.Next heavy slicing parameter 24 is set, and so-called heavy slicing parameter need in order again to cut into slices to refer to the parameter of setting, such as parameters such as Interpolation with Planar direction, interpolation quantity, sheet interlayer spacings.Just can generate respectively surface level section, coronal-plane section and sagittal plane section 25 according to the volume data of reading in and the interpolative mode that sets and heavy slicing parameter computing machine.
In above-mentioned module, utilize a series of CT sheet layer data, generate the series data on other two groups of planes, namely generate coronal-plane and sagittal series data with surface level sheet layer data.This generating algorithm is to generate under the condition of not carrying out the three-dimensional reconstruction stereo-picture, so its formation speed is fast.Simultaneously, in specific implementation process, three kinds of interpolation arithmetic patterns are provided, for user selection.
See also Fig. 3, this is the process flow diagram that the present invention shows and measure bidimensional image.Personal computer just begins read data files information 31 after the input file title, this category information is about the information of document format data aspect, includes: file name pattern, quantity of documents, image documentation equipment type, data memory format, section pel spacing, section sheet interlayer spacing.After having read these corresponding document format data information, the mode that personal computer is just established according to these document format datas reads section pixel data 32.Just can show two-dimensional slice image 33 according to these numerical computers, next computing machine just can utilize its graphics processing function that the two-dimensional slice image that shows is adjusted 34.These adjustment comprise: the dwindling and amplify of image rotation, detrusion, image inverse, gray scale adjustment, brightness adjustment, contrast adjustment, window adjusting, the adjustment of window position and image.Because the image here all is to derive from data file but not to the scanning of film, so computing machine is easy to just can measure 35 to the various positions on the image and distance, and this class measurement mainly is to the measurement of air line distance and the measurement of angle angle.Also comprise in certain embodiments these image files are preserved and transmitted into the computer-readable image file format of other types, such as tif, gif etc.
Above embodiment of the present invention provides a series of two dimensions and 3-D view processing capacity for the doctor.The major function that two dimensional image is processed has: the measurement of CT imagezoom, rotation, detrusion, inverse, gray scale adjustment, brightness adjustment, window and the adjustment of window position, length and angle and be the functions such as tiff image with the DICOM image transitions.The 3-D view preprocessing function mainly is that original CT image series is carried out again subdivision, rebuilds the two dimensional image of surface level, sagittal plane and coronal-plane, and the size of subdivision and pel spacing all can be adjusted flexibly.The major function that 3-D view is processed mainly contains: high-precision three-dimensional resurfacing, the convergent-divergent of said three-dimensional body, rotation, subdivision, color adjustment, length, area and cubing.
One of example application of these embodiment is to set up craniomaxillofacial surgery Extraordinary three dimensional analysis, measures and surgery simulation system.The dependence of CT workstation has been requested in the foundation of PC three-D CT imaging and analytic system, has reduced job costs, makes the plastic surgeon flexibly, independently each concrete case is carried out Extraordinary measurement, design and surgical simulation.The application of interactive mode is conducive to the doctor can be carried out perceptual comprehension and exchange for postoperative effect before operation with the patient, reaches common understanding.The realization of three-dimensional measurement is for the surgical simulation of setting up has truly been established the basis.The foundation of image is that the conversion by the three dimensional CT data obtains, and is electronic image truly, and asemantic to lose with the accuracy of Measurement and analysis be consistent with the result of CT workstation.
Above introduce, it only is preferred embodiment of the present invention, can not limit scope of the invention process with this, i.e. the variation that is equal to done according to the present invention of in the art those skilled in the art is for example made up variation with the three functions group among the above embodiment.And those skilled in that art improvement, the variation known, all should still belong to the scope that patent of the present invention contains.
Claims (6)
1. medical image imaging system, it is characterized in that may further comprise the steps: a utilizes personal computer to read the data file information of CT scan: b reads volume data; C extracts respectively bone tissue pixel and skin pixels from volume data; D calculates respectively bone and skin contour surface normal vector; E arranges respectively color, the transparency of bone and skin; F adds respectively form and forms complete image.
2. medical image imaging system according to claim 1 is characterized in that this system also comprises the measurement of the image of finishing being carried out length, area, volume and angle.
3. medical image imaging system according to claim 1 is characterized in that the method also comprises the image of finishing is adjusted.
4. medical image imaging system, it is characterized in that may further comprise the steps: a utilizes personal computer to read the data file information of CT scan: b reads volume data; C arranges interpolative mode; D arranges heavy slicing parameter; E calculates respectively generation level, crown, sagittal plane section collection according to interpolative mode and slicing parameter.
5. medical image imaging system, it is characterized in that may further comprise the steps: a utilizes personal computer to read the data file information of CT scan: b and reads the section pixel data; C shows two dimensional image at personal computer monitor; D utilizes the PC image processing function that two dimensional image is adjusted; E measures the various data between the two dimensional image pixel.
6. according to claim 1 to 6 described medical image imaging systems, the data file that it is characterized in that described CT scan is DICOM international standard format file.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652017A (en) * | 2016-09-18 | 2017-05-10 | 青岛海信医疗设备股份有限公司 | Method and apparatus for determining the completeness of DICOM image file in three-dimensional reconstruction |
| CN108053394A (en) * | 2017-12-08 | 2018-05-18 | 李书纲 | A kind of Medical Imaging System |
| CN109444937A (en) * | 2018-08-08 | 2019-03-08 | 北京木业邦科技有限公司 | Tree vigorous degree and Tending methods, device, electronic equipment and storage medium |
| TWI781438B (en) * | 2020-09-03 | 2022-10-21 | 倍利科技股份有限公司 | Medical image analysis system and its training method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1556504A (en) * | 2004-01-09 | 2004-12-22 | 上海第二医科大学附属第九人民医院 | CT medical imaging method |
| CN1670517A (en) * | 2004-03-17 | 2005-09-21 | 株式会社东芝 | Magnetic resonance imaging apparatus and method of controlling magnetic resonance imaging apparatus |
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2012
- 2012-04-12 CN CN2012101053488A patent/CN103377480A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556504A (en) * | 2004-01-09 | 2004-12-22 | 上海第二医科大学附属第九人民医院 | CT medical imaging method |
| CN1670517A (en) * | 2004-03-17 | 2005-09-21 | 株式会社东芝 | Magnetic resonance imaging apparatus and method of controlling magnetic resonance imaging apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652017A (en) * | 2016-09-18 | 2017-05-10 | 青岛海信医疗设备股份有限公司 | Method and apparatus for determining the completeness of DICOM image file in three-dimensional reconstruction |
| CN106652017B (en) * | 2016-09-18 | 2020-05-26 | 青岛海信医疗设备股份有限公司 | Method and device for judging DICOM image file integrity in three-dimensional reconstruction |
| CN108053394A (en) * | 2017-12-08 | 2018-05-18 | 李书纲 | A kind of Medical Imaging System |
| CN109444937A (en) * | 2018-08-08 | 2019-03-08 | 北京木业邦科技有限公司 | Tree vigorous degree and Tending methods, device, electronic equipment and storage medium |
| CN109444937B (en) * | 2018-08-08 | 2021-04-02 | 北京木业邦科技有限公司 | Tree modeling and tending method and device, electronic equipment and storage medium |
| TWI781438B (en) * | 2020-09-03 | 2022-10-21 | 倍利科技股份有限公司 | Medical image analysis system and its training method |
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Application publication date: 20131030 |