WO2006033377A1 - 医用画像表示装置及び方法並びにプログラム - Google Patents
医用画像表示装置及び方法並びにプログラム Download PDFInfo
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- WO2006033377A1 WO2006033377A1 PCT/JP2005/017446 JP2005017446W WO2006033377A1 WO 2006033377 A1 WO2006033377 A1 WO 2006033377A1 JP 2005017446 W JP2005017446 W JP 2005017446W WO 2006033377 A1 WO2006033377 A1 WO 2006033377A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/46—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with special arrangements for interfacing with the operator or the patient
- A61B6/461—Displaying means of special interest
- A61B6/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/46—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with special arrangements for interfacing with the operator or the patient
- A61B6/461—Displaying means of special interest
- A61B6/466—Displaying means of special interest adapted to display 3D data
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
- A61B6/563—Details of data transmission or power supply, e.g. use of slip rings involving image data transmission via a network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/008—Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
- G06T2219/008—Cut plane or projection plane definition
Definitions
- the present invention obtains a tomographic image of a subject from a medical image diagnostic apparatus (modality) including an X-ray CT apparatus, an MRI apparatus, and an ultrasonic apparatus, and three-dimensionals of an organ that is an observation target of the obtained tomographic image
- a medical image diagnostic apparatus including an X-ray CT apparatus, an MRI apparatus, and an ultrasonic apparatus
- the present invention relates to a technique capable of simultaneously displaying a target shape and a positional relationship between the organ to be observed and its surrounding organs.
- a measurement result of a moving organ including the heart is displayed in real time, thereby making it possible to diagnose an abnormal movement state such as calcification or infarction of the heart muscle.
- an abnormal movement state such as calcification or infarction of the heart muscle.
- real-time realization has been achieved in 2D images such as tomographic images of the heart.
- Patent Document 1 JP 2000-107182 A
- Patent Document 1 no consideration has been given to viewing three-dimensional form information from an arbitrary direction or displaying information on a part hidden in a three-dimensional image at the same time.
- an object of the present invention is to observe three-dimensional form information from an arbitrary direction or three-dimensional It is an object of the present invention to provide a medical image display apparatus, method, and program capable of simultaneously displaying information on a part hidden in an image.
- the medical image display apparatus of the present invention creates tomographic image input means for inputting a plurality of tomographic images obtained by the medical image photographing apparatus and a stacked three-dimensional image by accumulating the inputted plural tomographic images.
- Three-dimensional image creation means for cutting, the stacked three-dimensional image at an arbitrary cross section, an arbitrary cut surface image creation means for creating the cut cross-sectional image from the plurality of tomographic images, and positional information of the tomographic image
- a superimposing image creating means for creating a superposed image of the stacked three-dimensional image and the arbitrary cut surface image, and a display means for displaying the created superposed image.
- the medical image display method of the present invention includes a tomographic image input step of inputting a plurality of tomographic images obtained by a medical image photographing apparatus, and creating a stacked three-dimensional image by accumulating the input tomographic images.
- a superimposed image creating step for creating a superimposed image of the stacked three-dimensional image and the MPR image, and a display step for displaying the created superimposed image.
- a medical image display program to be executed by a computer includes a tomographic image input process for inputting a plurality of tomographic images obtained by a medical image capturing device, and the plurality of input tomographic images.
- 3D image creation processing for creating a stacked 3D image by stacking, and arbitrary cut plane image creation processing for cutting the stacked 3D image at an arbitrary cross-section and creating the cut cross-sectional images from the plurality of tomographic images;
- Based on the positional information of the tomographic image a superimposed image creating process for creating a superimposed image of the stacked three-dimensional image and the arbitrary cut surface image, and a display process for displaying the created superimposed image; Have.
- FIG. 1 is an example of a medical image display device according to the present invention.
- FIG. 2 is a block diagram excerpting the main part of FIG.
- FIG. 3 is a detail of the control device 20 of FIG.
- FIG. 4 is an example of a GUI that realizes the first embodiment.
- FIG. 5 is an example of a processing flowchart of the first embodiment.
- FIG. 6 is an example of a three-dimensional image created in the first embodiment.
- FIG. 7 is an example of an MPR image created in the first embodiment.
- FIG. 8 is an example of a superimposed image of a three-dimensional image and an MPR image created in the first embodiment.
- FIG. 9 is an example of a GUI that realizes the second embodiment.
- FIG. 10 is an example of a process flowchart of the second embodiment.
- FIG. 11 is an example of a superimposed image of a 3D image and an MPR image created in the second embodiment
- FIG. 12 is an example of a GUI that realizes the third embodiment.
- FIG. 13 is an example of a process flowchart of the third embodiment.
- FIG. 14 is an example of a superimposed image of the three-dimensional image and MPR image created in the third embodiment.
- FIG. 15 is an example of a GUI for realizing the third embodiment.
- FIG. 16 is an example of a process flowchart of the third embodiment.
- FIG. 17 is an example of a superimposed image of a 3D image and an MPR image created in the third embodiment.
- FIG. 18 is an example of a cine display of a superimposed image of a three-dimensional image and an MPR image.
- the medical image display method, medical image display program, and medical image display apparatus of the present invention are implemented by a computer system as shown in FIG.
- the computer system includes a CPU 10, a transfer magnetic disk 13, a main memory 14, a controller 15, and a display memory 18 connected to the CPU 10 via a data transfer bus 1A.
- the CPU 10 performs region extraction calculation and projection image creation calculation.
- the magnetic disk 13 receives and stores medical tomographic images taken by the medical tomographic imaging apparatus 11 via a network such as the LAN 12.
- the main memory 14 stores medical tomographic image data and the progress of the calculation during the region extraction calculation.
- the controller 15 has a mouse 16 and a keyboard 17 connected to the operator to input extraction start points and parameters necessary for region extraction, and the operator inputs parameters and the like to the mouse 16 and the keyboard 17. To do.
- the display device 19 includes a display memory 18 used for displaying the region extraction result, a liquid crystal display, a CRT, and the like.
- FIG. 2 is a functional block diagram of FIG. 1, and FIG. 3 shows details of the control device 20 of FIG.
- the computer system has a control device 20 connected to an input device 21, a storage device 22, and a display device 23.
- the control device 20 includes an observation target organ region extraction unit 30 connected to the input device 21 and the storage device 22, a three-dimensional image data creation unit 31 in the observation target region, an MPR image creation unit 32, and a superimposed image creation unit 33.
- the medical image display apparatus of the present invention operates according to a program that can be executed by a computer using the method of the flowchart shown in each embodiment.
- FIG. 4 shows an example of a graphical user interface (GUI) that implements the first embodiment.
- FIG. 5 shows an example of a processing flowchart of the first embodiment. Each step in FIG. 5 is described below. In this embodiment, the case where the myocardium is used as an observation target organ is exemplified.
- the operator operates an input device such as the mouse 16 and inputs an image reading button 41 of the GUI 40 to input a group of medical tomographic images taken by an X-ray CT apparatus or an MRI apparatus.
- the input image is displayed in the image display area 42. Which slice of the input medical tomographic image group is displayed is determined by the operator using an input device such as the mouse 16 or the keyboard 17.
- an input device such as the mouse 16 or the keyboard 17.
- the scroll scroll bar 43 any selection may be made.
- the operator may operate the input device such as the mouse 16 or the keyboard 17 to operate the gradation conversion scroll bar 44 so that the input image can be displayed with an arbitrary gradation.
- the operator operates an input device such as the mouse 16 and designates an organ region to be observed on a medical tomographic image such as an X-ray CT image or an MR image displayed in the image display region 42 of the GUI 40. .
- the CPU 10 extracts the designated organ region using, for example, a region extraction method (a region growing method) disclosed in Japanese Patent No. 2845995.
- the CPU 10 creates a three-dimensional image of the organ region to be observed extracted in step 52 using a surface rendering method, a volume rendering method, or the like. Whether the operator adopts the surface rendering method or the volume rendering method can be arbitrarily changed by the operator operating the combo box 45 on the GUI 40 using an input device such as the mouse 16. Oh ,.
- the CPU 10 creates an MPR image cut at a cross section having an arbitrary inclination centered at an arbitrary coordinate in the laminated medical tomographic image.
- the MPR image is applied to the myocardial image group in FIG. 6, it is created as an image 70 in FIG. 7, for example.
- the CPU 10 creates a superimposed image by superimposing the three-dimensional image of the observation target organ region and the MPR image.
- the coordinates are adjusted so that the positional relationship between the 3D image and the MPR image is the actual positional relationship.
- a superimposed image 80 as shown in FIG. 8 is obtained from the three-dimensional image 62 in FIG. 6 and the MPR image 70 in FIG.
- Step 56 The CPU 10 displays the superimposed image of the created three-dimensional image and the MPR image in the superimposed image display area 46 on the GUI 40.
- the angle of the displayed three-dimensional image may be freely changed by the operator dragging the mouse 16 on the display area 46 of the superimposed image. Simultaneously with the rotation of the 3D image, the MPR image may be rotated while maintaining the positional relationship. Alternatively, when the operator drags the mouse 16 on the superimposed image display area 46, only the section for creating the MPR image may be rotated while the display angle of the three-dimensional image is fixed. Of course, if the cross section rotates, the displayed MPR image will also change according to the cross section position.
- the angle of the cross section for creating the 3D image and the MPR image is fixed, and the center position of the cross section for creating the MPR image is fixed. Only may move.
- the displayed MPR image changes as the MPR image moves.
- Only one of the events by mouse operation such as the rotation of the three-dimensional image, the rotation of the cross section for creating the MPR image, and the movement of the cross section for creating the MPR image can be realized.
- all events may be realized by allowing the operator to arbitrarily switch modes such as rotation and movement. These modes may be selected, for example, with the rotation mode combo box 47 on the GUI 40.
- FIG. 10 shows an example of a processing flowchart of the present embodiment. In the following, each step in Fig. 10 will be described with reference to the drawings.
- the operator operates the input device such as the mouse 16 and inputs the image reading button 91 of the GUI 90 to display a group of medical tomographic images such as an X-ray CT image and an MR image taken by the X-ray CT device and the MRI device. input.
- the input image is displayed in the image display area 92.
- the slices to be displayed in the input medical tomographic image group are determined by the operator using the mouse 16, keyboard 17, etc.
- the slice feed scroll bar 93 may be operated using the input device so that it can be arbitrarily selected. Further, the operator may operate the input device such as the mouse 16 or the keyboard 17 to operate the gradation conversion scroll bar 94 so that the input image can be displayed at an arbitrary gradation.
- the operator operates an input device such as the mouse 16 and designates an organ region to be observed on a medical tomographic image such as an X-ray CT image or MR image displayed in the image display region 92 of the GUI 90. .
- the CPU 10 extracts the designated organ region using, for example, a region growing method.
- the CPU 10 creates an MPR image cut at a cross section having an arbitrary inclination centered at an arbitrary coordinate in the laminated medical tomographic image.
- the CPU 10 acquires the transparency value from the transparency setting scroll bar 95.
- the CPU 10 uses the surface rendering method or the volume rendering method to create a three-dimensional image of the organ region to be observed extracted in step 102. Whether the operator adopts the surface rendering method or the volume rendering method can be arbitrarily changed by the operator operating the combo box 96 on the GUI 90 using an input device such as the mouse 16. Well ...
- the CPU 10 creates a superimposed image by superimposing the three-dimensional image of the observation target organ region and the MPR image.
- the coordinates are adjusted so that the positional relationship between the 3D image and the MPR image is the same as the actual positional relationship.
- the superimposed image becomes an image 110 in FIG. In this way, the 3D image is displayed semi-transparently and the MPR image is displayed transparently.
- the CPU 10 displays a superimposed image of the created three-dimensional image and the MPR image in a superimposed image display area 97 on the GUI 90.
- the display angle of the three-dimensional image to be displayed may be freely changed by the operator dragging the mouse 16 on the superimposed image display area 97. Simultaneously with the rotation of the 3D image, the MPR image may be rotated while maintaining the positional relationship. Alternatively, by dragging the mouse 16 on the display area 97 of the superimposed image, only the cross section for creating the MPR image may be rotated while the angle of the three-dimensional image is fixed. Of course, if the cross section rotates, the displayed MPR image also changes according to the cross section position.
- the operator While viewing the superimposed image displayed in the superimposed image display area 97 on the GUI 90, the operator operates the transparency setting scroll bar 95 with an input device such as the mouse 16 or the keyboard 17 as necessary to display the three-dimensional image.
- the transparency may be arbitrarily changed.
- step 104 is performed and a new superimposed image is created.
- FIG. 13 shows an example of a processing flowchart of the present embodiment. Hereinafter, each step in FIG. 13 will be described with reference to the drawings.
- the operator operates an input device such as the mouse 16 and inputs the image reading button 121 of the GUI 120, and a medical slice image group such as an X-ray CT image or an MR image taken by an X-ray CT device or an MRI device. Enter.
- an input device such as the mouse 16 and inputs the image reading button 121 of the GUI 120
- a medical slice image group such as an X-ray CT image or an MR image taken by an X-ray CT device or an MRI device. Enter.
- the input image is displayed in the image display area 122.
- the slices to be displayed in the inputted medical tomographic image group can be arbitrarily selected by the operator by operating the slice feed scroll bar 123 using an input device such as the mouse 16 or the keyboard 17. May be. Further, the operator may operate the input device such as the mouse 16 or the keyboard 17 to operate the gradation conversion scroll bar 124 so that the input image can be displayed with an arbitrary gradation.
- the operator operates an input device such as the mouse 16 and designates an organ region to be observed on a medical tomographic image such as an X-ray CT image or MR image displayed in the image display region 122 of the GUI 120.
- a medical tomographic image such as an X-ray CT image or MR image displayed in the image display region 122 of the GUI 120.
- the CPU 10 extracts the designated organ region using, for example, a region growing method.
- the CPU 10 uses the surface rendering method, the volume rendering method, or the like to create a three-dimensional image of the organ region to be observed extracted in step 122. Whether the operator adopts the surface rendering method or the volume rendering method can be changed arbitrarily by the operator operating the combo box 125 on the GUI 120 using an input device such as the mouse 16. Oh ,.
- the CPU 10 obtains the MPR transparency value from the transparency setting scroll bar 126. (Step 135)
- the CPU 10 creates an MPR image cut at a cross section having an arbitrary inclination centered at an arbitrary coordinate in the laminated medical tomographic image.
- the CPU 10 creates a superimposed image obtained by superimposing the three-dimensional image of the organ region to be observed and the MPR image.
- the coordinates are adjusted so that the positional relationship between the 3D image and the MPR image is the same as the actual positional relationship.
- the MPR image is displayed semi-transparently using the transparency acquired in step 124 and superimposed.
- the superimposed image looks like image 140 in FIG.
- the MPR image is displayed semi-transparently and the 3D image can be seen through.
- the CPU 10 displays a superimposed image of the created three-dimensional image and the MPR image in a superimposed image display area 127 on the GUI 120.
- the display angle of the 3D image to be displayed may be freely changed by the operator by dragging the mouse 16 on the superimposed image display area 127, or MPR at the same time as the rotation of the 3D image.
- the image may also be rotated while maintaining the positional relationship.
- the operator drags the mouse 16 on the superimposed image display area 127 only the cross section for creating the MPR image may be rotated while the angle of the three-dimensional image is fixed.
- the cross section rotates, the displayed MPR image will also change according to the cross section position.
- Only one of the events by the mouse operation such as the rotation of the three-dimensional image, the rotation of the cross section for generating the MPR image, and the movement of the cross section for generating the MPR image can be realized.
- all events may be realized by allowing the operator to arbitrarily switch modes such as rotation. These modes may be selected by a rotation mode combo box 128 on the GUI 120, for example.
- Step 138 The operator operates the input device such as the mouse 16 or the keyboard 17 as necessary and operates the transparency setting scroll bar 125 while watching the superimposed image displayed in the superimposed image display area 127 on the GUI 120.
- the transparency of the three-dimensional image may be arbitrarily changed.
- step 134 is performed as soon as the transparency is changed, and a new superimposed image is created.
- the MPR image and the three-dimensional image that are set to be semi-transparent can be superimposed to obtain both information simultaneously.
- FIG. 16 shows an example of a processing flowchart of the present embodiment. Below, each step in FIG. 16 will be described with reference to the drawings.
- the operator operates an input device such as the mouse 16 and inputs the image reading button 151 of the GUI 150, and a medical slice image group such as an X-ray CT image or an MR image taken by an X-ray CT device or an MRI device. Enter.
- an input device such as the mouse 16 and inputs the image reading button 151 of the GUI 150
- a medical slice image group such as an X-ray CT image or an MR image taken by an X-ray CT device or an MRI device. Enter.
- the input image is displayed in the image display area 152.
- the slices to be displayed in the input medical tomographic image group can be arbitrarily selected by the operator by operating the slice feed scroll bar 153 using an input device such as the mouse 16 or the keyboard 17. May be. Further, the operator may operate the input device such as the mouse 16 or the keyboard 17 to operate the gradation conversion scroll bar 154 so that the input image can be displayed with an arbitrary gradation.
- the operator operates an input device such as the mouse 16 and designates an organ region to be observed on a medical tomographic image such as an X-ray CT image or an MR image displayed in the image display region 152 of the GUI 150.
- a medical tomographic image such as an X-ray CT image or an MR image displayed in the image display region 152 of the GUI 150.
- the CPU 10 extracts the designated organ region using, for example, a region growing method. (Step 163)
- the CPU 10 acquires the transparency for the three-dimensional image and the transparency for the MPR image from the transparency setting scroll bar 155.
- the CPU 10 uses the surface rendering method, the volume rendering method, or the like to create a three-dimensional image of the organ region to be observed extracted in step 152. Whether the surface rendering method or the volume rendering method is adopted may be arbitrarily changed by the operator operating the combo box 156 on the GUI 150 using an input device such as the mouse 16.
- the CPU 10 creates an MPR image cut at a cross section having an arbitrary inclination centered at an arbitrary coordinate in the laminated medical tomographic image.
- the CPU 10 creates a superimposed image by superimposing the three-dimensional image of the observation target organ region and the MPR image.
- the coordinates are adjusted so that the positional relationship between the 3D image and the MPR image is the same as the actual positional relationship.
- the three-dimensional image and the MPR image are displayed semi-transparently and superimposed.
- the superimposed image looks like an image 170 in FIG. Both 3D images and MPR images are translucently displayed and show through.
- the CPU 10 displays a superimposed image of the created three-dimensional image and the MPR image in a superimposed image display area 157 on the GUI 150.
- the display angle of the 3D image to be displayed may be freely changed by the operator dragging the mouse 16 on the superimposed image display area 157, or MPR at the same time as the rotation of the 3D image.
- the image may also be rotated while maintaining the positional relationship.
- the operator drags the mouse 16 on the display area 157 of the superimposed image only the section for creating the MPR image may be rotated while the angle of the three-dimensional image is fixed.
- the cross section rotates, the displayed MPR image will also change according to the cross section position.
- These modes may be selected by a rotation mode combo box 158 on the GUI 150, for example.
- the operator operates the input device such as the mouse 16 or the keyboard 17 as necessary while operating the transparency setting scroll bar 155 while viewing the superimposed image displayed in the superimposed image display area 157 on the GUI 150.
- the transparency of the three-dimensional image may be arbitrarily changed. As soon as the transparency change occurs, the process after the 3D image creation process in step 164 is performed, and a new superimposed image is created.
- the power described for the method of displaying the superimposed image in which the image of the cut surface is superimposed on the three-dimensional image is displayed on these superimposed images in a side-by-side manner. It may be. In addition, it may be possible to arbitrarily select whether to superimpose an image or display only a three-dimensional image by switching ONZOFF.
- the force described in the case of superimposing a three-dimensional image and an MPR image on a medical image in one time phase for example, as shown in images 180 to 182 in FIG.
- images 180 to 182 in FIG. If there are multiple tomographic image groups for each cardiac phase in which the state of the heartbeat is taken for an organ that performs a periodic motion such as the heart, as shown in images 183 to 185 in FIG.
- a tatami mat image is created, and a superimposed image of the slightly contracted 3D image and the MPR image is created in time phase 2, and a superimposed image of the 3D image and the MPR image corresponding to the systole is created in time phase 3.
- the case where the myocardium is the observation target has been described as an example, but of course, organs other than the myocardium, for example, blood vessels and lungs may be the target.
- the medical image display method, program, and apparatus of the present invention include a three-dimensional image including morphological information of an organ region to be observed and information on peripheral organs of the organ to be observed. MPR images can be displayed simultaneously. Therefore, the shape of the organ to be observed and the positional relationship between the surrounding organs can be grasped at a time.
Abstract
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US11/663,682 US7801346B2 (en) | 2004-09-24 | 2005-09-22 | Medical image display device, method, and program |
JP2006536404A JP4798712B2 (ja) | 2004-09-24 | 2005-09-22 | 医用画像表示装置及び方法並びにプログラム |
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US7801346B2 (en) | 2010-09-21 |
JP4798712B2 (ja) | 2011-10-19 |
JPWO2006033377A1 (ja) | 2008-05-15 |
US20070293755A1 (en) | 2007-12-20 |
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