WO2008072335A1 - 医用三次元画像の表示方向修正装置、修正方法および修正用プログラム - Google Patents
医用三次元画像の表示方向修正装置、修正方法および修正用プログラム Download PDFInfo
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- WO2008072335A1 WO2008072335A1 PCT/JP2006/324968 JP2006324968W WO2008072335A1 WO 2008072335 A1 WO2008072335 A1 WO 2008072335A1 JP 2006324968 W JP2006324968 W JP 2006324968W WO 2008072335 A1 WO2008072335 A1 WO 2008072335A1
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- medical
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- landmarks
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- 238000000034 method Methods 0.000 title claims description 36
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000012937 correction Methods 0.000 claims description 28
- 238000011156 evaluation Methods 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 2
- 230000000877 morphologic effect Effects 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 26
- 210000001508 eye Anatomy 0.000 description 11
- 230000001815 facial effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 210000003625 skull Anatomy 0.000 description 4
- 210000005252 bulbus oculi Anatomy 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013170 computed tomography imaging Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 210000000613 ear canal Anatomy 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002050 maxilla Anatomy 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
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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
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/46—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 or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/501—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of the head, e.g. neuroimaging or craniography
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/14—Transformations for image registration, e.g. adjusting or mapping for alignment of images
- G06T3/153—Transformations for image registration, e.g. adjusting or mapping for alignment of images using elastic snapping
Definitions
- the present invention relates to display of a medical three-dimensional image, and more particularly to an apparatus, method, and program for correcting the display direction of a medical three-dimensional image.
- the definition of the orientation is important in evaluating and measuring the facial skull skeleton, and it is necessary to finely adjust the coordinate system that determines the orientation to correctly evaluate and measure the facial skull skeleton.
- anatomical feature points (hereinafter referred to as "landmarks”) are extracted from the 3D images, and anatomically based on the feature points.
- a technique is disclosed in which a reference coordinate system that is uniquely determined by viewing is set, a three-dimensional image to be displayed is coordinate-converted according to the reference coordinate system, and a medical three-dimensional image after coordinate conversion is displayed (for example, Patent Documents). 1 (see JP-A-8-131403).
- Patent Document 1 Japanese Patent Laid-Open No. 8-131403
- Patent Document 2 US Pat. No. 6,888,546
- the orientation of the displayed three-dimensional image differs depending on where the landmark is obtained and how the image coordinates are defined.
- the reference coordinate system that is uniquely defined anatomically is not limited to one, and there are a plurality of reference coordinate systems. Therefore, when performing image diagnosis, a plurality of reference coordinate systems are appropriately created under the necessary conditions. It is necessary to evaluate comprehensively.
- the conventional method of displaying a medical 3D image when adjusting the reference coordinate system once determined, it is necessary to change the landmark used to determine the reference coordinate system. There was a problem of being lost.
- An object of the present invention is to provide an apparatus, a method, and a program for correcting the display direction of a medical three-dimensional image capable of correcting the display direction of an image on the basis of a reference coordinate system determined once. .
- the present invention is based on basic coordinates and display determined based on landmarks, uses another landmark that is not used for setting the reference coordinate system, and is uniquely determined and reproducible.
- An apparatus, a method and a program for constructing the coordinate system of the obtained orientation are problem solving means.
- the configuration of claim 1 that is, processing means for displaying a medical three-dimensional image according to a three-dimensional coordinate system based on landmarks included in the image, and display of the displayed medical three-dimensional image At least one point in the right area, and at least one point in the left area! Any landmark that is not a reference for the original 3D coordinate system is specified. Accordingly, based on the processing means for registering the designated landmarks and the pair of registered left and right landmarks, one of the three directions constituting the three-dimensional coordinate system is kept as it is, and the two directions
- a display unit for correcting a display direction of a medical three-dimensional image characterized by comprising: processing means for correcting the inclination of the medical three-dimensional image.
- the invention according to claim 2 is characterized in that the original medical three-dimensional image includes an image of a human head displayed according to a horizontal reference plane, a frontal plane, and a median plane based on a landmark, and the correction processing
- the invention according to claim 3 is characterized in that the original medical three-dimensional image includes an image of a human head displayed according to a horizontal reference plane, a frontal plane, and a median plane based on a landmark, and the correction processing 2.
- each of the registered pair of left and right landmarks includes a midpoint of a plurality of landmarks when a plurality of landmarks are designated.
- the invention according to claim 5 is a process for displaying a medical three-dimensional image according to a three-dimensional coordinate system based on a landmark included in the image, and correcting the reference coordinate system in the displayed medical three-dimensional image.
- the designated landmark is registered and registered.
- the medical tertiary is characterized in that, based on a pair of landmarks, a process of correcting the inclination of the two surfaces is performed while keeping one of the three orthogonal surfaces constituting the three-dimensional coordinate system as it is. This is a method for correcting the display direction of the original image.
- the invention according to claim 6 is a program for correcting the display direction of a medical three-dimensional image for performing the series of processing according to any one of claims 1 to 4.
- the present invention can be realized by using a computer apparatus, and the computer apparatus itself that executes a series of processes according to the present invention. Even so, the present invention is intended to be a program created for performing the processing according to the present invention or a processing method including a series of processing.
- the display direction of the medical 3D image is newly designated. It can be corrected based on the mark.
- the basic coordinates and display determined based on the landmark are used as the basis, and another landmark that is not used for setting the original coordinate system is used. It is possible to construct a direction and coordinate system that can be obtained.
- the corrected three-dimensional coordinate system is also a coordinate system based on landmarks, and thus the displayed medical three-dimensional image is displayed according to a new coordinate system after correction based on landmarks. Therefore, a medical three-dimensional image can be displayed from various directions that can be reproduced based on the landmark.
- the inclination of the horizontal reference plane constituting the three-dimensional coordinate system can be corrected based on a newly registered landmark.
- FIG. 1 is a block diagram showing a configuration of a computer system that performs image display according to an embodiment of the present invention.
- FIG. 2 is an illustrative view showing one example of a medical three-dimensional image shown on the display 2 shown in FIG. 1.
- FIG. 3 is an illustrative view showing another example of the medical three-dimensional image displayed on the display 2 shown in FIG. 1.
- the three-dimensional image of the human head includes the horizontal reference plane HP, the frontal plane VP1, and the midline.
- FIG. 10 is a diagram showing an example displayed based on surface VP2.
- Figure 4 Three-dimensional human head displayed according to the reference axis based on the landmarks shown in Figure 2 It is a figure for demonstrating how to correct an X axis in an image.
- FIG. 6 This is a display example of a three-dimensional image viewed from the right side of the human head viewed from the right side of the human head when the normal force is viewed on the midline VP2.
- Horizontal reference plane This is a diagram for explaining how to correct HP and use the corrected horizontal reference plane as a new horizontal reference plane.
- FIG. 8 Frontal surface This is a diagram for explaining how to correct VP1.
- FIG. 9 is a flowchart showing the flow of processing when the control unit 1 executes correction of the reference axis.
- FIG. 10 is a flowchart showing the flow of processing when the control unit 1 executes correction of the reference plane.
- FIG. 11 is an illustrative view for illustrating a method of correcting a reference coordinate system according to another embodiment of the present invention.
- FIG. 12 is an illustrative view for illustrating a method of correcting a reference coordinate system according to another embodiment of the present invention.
- FIG. 13 is an illustrative view for illustrating a method of correcting a reference coordinate system according to another embodiment of the present invention.
- FIG. 14 is an illustrative view for illustrating a method of correcting a reference coordinate system according to another embodiment of the present invention.
- FIG. 15 is an illustrative view for illustrating a method of correcting a reference coordinate system according to another embodiment of the present invention.
- FIG. 16 is an illustrative view for explaining a method of correcting a reference coordinate system according to still another embodiment of the present invention.
- FIG. 17 is an illustrative view for explaining a method of correcting a reference coordinate system according to still another embodiment of the present invention.
- FIG. 18 is an illustrative view for explaining a method of correcting a reference coordinate system according to still another embodiment of the present invention.
- FIG. 19 is an illustrative view for illustrating a method of correcting a reference coordinate system according to still another embodiment of the present invention.
- FIG. 1 is a block diagram showing a configuration of a computer system that performs image display according to an embodiment of the present invention.
- a computer system that performs display includes a control unit 1 in which a CPU, ROM, RAM, and a hard disk are incorporated, a display unit 2 connected to the control unit 1, a keyboard 3, and a mouse 4.
- the control unit 1 is configured such that the program can be installed from the storage medium 5 or the like in which the program according to one embodiment of the present invention is stored.
- a display system using a powerful computer can be realized using an existing computer device.
- FIG. 2 is an illustrative view showing one example of a medical three-dimensional image displayed on the display 2 shown in FIG.
- the medical 3D image shown in Fig. 2 represents the human head, and the reference axes that serve as the basis for the direction and coordinates of the 3D image, that is, the X, Y, and Z axes are displayed together. .
- X axis, Y axis and Z axis are reference axes set based on anatomical feature points in the image (hereinafter referred to as “landmarks”).
- landmarks As a method for setting the reference axis based on the landmark, for example, a method disclosed in JP-A-8-131403 can be adopted.
- the origin is the midpoint of the line connecting the left and right ear canal
- the X axis is a straight line passing through the center of the left and right eyeballs.
- a medical three-dimensional image displayed according to the reference axis includes a plurality of images.
- each image can be oriented in the same direction, and measurement and evaluation can be performed correctly.
- the basic medical 3D images are not limited to those displayed according to the reference axes based on landmarks (X axis, Y axis, and Z axis). It may be an image displayed in accordance with ⁇ .
- the three-dimensional image of the human head in FIG. 3 is displayed with reference to the horizontal reference plane HP, the frontal plane (first vertical reference plane) VP1, and the median plane (second vertical reference plane) VP2.
- These horizontal reference plane HP, frontal plane VP 1 and median plane VP2 are also planes determined based on the landmark.
- the method of setting the reference plane based on the landmark is described in US Pat. No. 6,888,546. Can be used.
- Both the 3D image shown in Fig. 2 and the 3D image shown in Fig. 3 are displayed according to the reference axis or reference plane based on the landmark, and the facial skeleton in the 3D image (human body head) is displayed.
- the direction of the 3D image can be displayed in a specific direction with good reproducibility based on the landmark.
- a landmark that is not on the X-axis or Y-axis or a landmark that is not on the horizontal reference plane HP is used to reflect the position of the landmark. For example, if you can create a new X-axis or a new horizontal reference plane while maintaining the Y-axis information or a part of the existing horizontal plane information, you can create a tertiary based on the landmark. Since the original image can be displayed with good reproducibility and the direction of force can be determined in various ways, it is very useful for facial skeleton morphology evaluation and measurement.
- these reference axes can be fine-tuned to create new reference axes.
- a landmark that is not on the existing horizontal reference plane HP is used, and the position of the landmark is reflected to make fine adjustments while maintaining some of the existing horizontal reference plane HP information.
- New horizontal reference plane can be created.
- Figure 4 shows how to correct the X-axis by looking at the 3D image of the human head displayed according to the reference axes (X-axis, Y-axis and Z-axis) based on the landmarks shown in Figure 2 It is a figure for demonstrating.
- the 3D image of the human head is a 3D-CT image (3D CT image).
- 3D CT image it is possible to display the cranial skeleton, which is an internal structure, by adjusting the CT value, and it is also possible to display the skin, which is the outer surface shape. Therefore, for example, the CT value is adjusted to display the skin.
- the right external eye angle P1 and the left external eye angle P2 are designated with the cursor by operating the mouse 4, for example.
- control unit 1 registers designated points P1 and P2 as new landmarks, and calculates an angle ⁇ between the straight line passing PI-P2 and the X axis. That is, the slope of the straight line passing through PIPS with respect to the X axis is calculated.
- the X axis is tilted by an angle ⁇ around the Y axis so that the X axis is parallel to the straight line passing through P1-P2.
- the saddle axis is tilted by the angle ⁇
- the saddle axis is also tilted by the angle ⁇ to be a new saddle axis.
- the new reference axes for displaying the 3D image are the new X axis, the original saddle axis, and the new saddle axis, and the X axis and the saddle axis are corrected with the position coordinates of the original saddle axis remaining.
- the new reference axes, the new X axis, the original saddle axis, and the new saddle axis, are based on the original landmarks and are also defined based on the new landmarks P1 and ⁇ 2.
- Horizontal reference plane ⁇ , frontal plane VP1 and midline VP2 The three-dimensional image is rotated in a desired direction, and the CT value is adjusted to display an image showing the head left side force as shown in FIG. 5, for example.
- a frontal rib suture point (outside) P3 included in the skull is designated in this image, and the point P3 is registered as a landmark.
- This registration can be done, for example, by placing the cursor on the frontal rib suture point (outside) and clicking the mouse 4.
- the human head display image is rotated to display the human head viewed from the right side, and the right frontal rib suture point (outside) P4 is registered as a landmark.
- the displayed three-dimensional image is rotated around the frontal plane VP1 so that the two landmarks P3 and P4 are aligned in the horizontal direction, either manually or automatically.
- the three-dimensional image after rotation is the image shown in FIG. In the three-dimensional image in Fig. 7, the direction of the frontal plane VP1 is not changed, and the horizontal reference plane HP is rotated three degrees around the Y axis (the angle at which the landmarks P3 and P4 are aligned horizontally). It is an image.
- the horizontal reference plane HP is corrected so that the orientation of the image shown in FIG. 7 is the new right side surface, and the corrected horizontal reference plane is set as a new horizontal reference plane.
- the front plane VP1 is left as it is, and the orientation of the horizontal reference plane HP is corrected, so that the median plane VP2 is also rotated so as to be orthogonal to the corrected horizontal reference plane HP. And amended.
- a new reference plane is constructed by the corrected horizontal reference plane newHP, the original frontal plane VP1 and the corrected median plane newVP2, and the direction of the 3D image is based on this reference plane. Defined and displayed.
- the new image is an image displayed according to the reference plane created based on the landmarks, and the display image according to the reference plane modified based on the additional landmarks of the left and right frontal rib suture points. It is displayed based on an anatomically reproducible reference plane.
- the horizontal positions of the landmarks P3 and P4 are matched as shown in FIG. Let's do some operation or processing.
- the front plane VP 1 can be corrected by rotating the reference plane in the display direction of the 3D image around the horizontal reference plane HP.
- the frontal plane VP1 is rotated by a small angle from the original frontal plane VP1 (rotated around the Z axis).
- the new frontal plane newVPl is defined as a vertical line that penetrates the center in the width direction of the frontal plane VP1 up and down.
- a new frontal plane newVP 1 can be defined.
- the median plane VP2 perpendicular to the frontal plane VP1 is also automatically corrected.
- FIG. 9 is a flowchart showing the flow of processing when the control unit 1 executes the above-described reference axis correction.
- control unit 1 can correct the reference axis when in a specific mode, for example, the reference axis correction mode.
- a medical three-dimensional image is displayed on the display 2 (Step SD o
- the three-dimensional image displayed is rotated in an arbitrary angle direction or the CT value is adjusted,
- the right landmark that the user wants to specify is displayed in the three-dimensional image, and the displayed right landmark is specified by, for example, the mouse 4 or the like. 1 registers the specified landmark and displays it overlaid on the 3D image (step S3).
- the control unit 1 registers the left landmark and displays it on the display 2 so as to overlap the three-dimensional image (step S5).
- control unit 1 rotates the three-dimensional image around the Y axis so that the left and right landmarks are aligned horizontally (step S6).
- This rotation process may be performed automatically by the control unit 1. It may be performed based on a user operation.
- step S7 the control unit 1 corrects the X axis and the Z axis, and registers a new X axis and a new Z axis.
- the coordinates of the 3D image data are converted based on the corrected X axis, the corrected Z axis, and the original saddle axis (the Y axis remains unchanged) (step S8).
- FIG. 10 is a flowchart showing the flow of processing when the control unit 1 executes correction of the reference plane.
- the control unit 1 can correct the reference plane when in a specific mode, for example, the reference plane correction mode.
- the medical 3D image is displayed on the display 2 (Step SD o
- the 3D image displayed is rotated in an arbitrary angle direction or the CT value is adjusted,
- the right landmark that the user wants to specify is displayed in the three-dimensional image, and the displayed right landmark is specified by, for example, the mouse 4 or the like. 1 registers the specified landmark and displays it overlaid on the 3D image (step S3).
- the control unit 1 registers the left landmark and displays it on the display 2 so as to overlap the three-dimensional image (step S5).
- control unit 1 rotates the three-dimensional image around the frontal surface so that the left and right landmarks are aligned horizontally (step S6).
- This rotation process may be performed automatically by the control unit 1 or based on a user operation.
- control unit 1 corrects the horizontal reference plane and the median plane, Register a new horizontal reference plane and median plane.
- the coordinates of the 3D image data are converted based on the newly set and registered horizontal reference plane, median plane and frontal plane (the frontal plane remains unchanged).
- the direction of the 3D image can be corrected to a desired direction using a landmark in the medical 3D image, and various medical 3D images can be used.
- Directional force can be displayed with good reproducibility.
- the orientation of the facial skeleton to be measured can be displayed in a desired direction with good reproducibility.
- the present invention is not limited to the above description.
- the present invention includes the following coordinate system correction of the reference axis and reference surface.
- Fig. 11 is a three-dimensional image of the human head displayed according to the existing reference coordinate system X-axis, Y-axis, and Z-axis set based on the landmark.
- Fig. 12 shows the three-dimensional image. It is the figure which looked at the image from the front, and the X-axis and the Z-axis are shown by a straight line. The Y axis passes through the origin, which is the intersection of the X axis and the Z axis.
- the right external eye angle A1 and the left external eye angle A2 appearing in the front view of the human head are designated by, for example, the mouse 4 (see FIG. 1).
- the control unit 1 automatically calculates the midpoint of the line segment A1—A2, that is, the midpoint A3 of the right and left external eye angles, and registers it as a landmark. At the same time, it is displayed on the image of the human head.
- the user designates the nose tip B1 with the mouse 4 or the like. Accordingly, the position of the nose tip B 1 is registered as a landmark and displayed on the image of the human head.
- the Z-axis is rotated around the Y-axis to create a new Z-axis so that it is parallel to the line segment A3-B1.
- the Y axis uses the existing Y axis, and the Z axis and the X axis are corrected to new axes. Then, the front view of the three-dimensional image of the human head based on the new reference coordinate system, that is, the new X-axis, Y-axis, and new Z-axis is shown in FIG.
- the coordinate system using the X, Y, and Z axes as the reference coordinate system based on the landmarks has been described as an example.
- the reference coordinate system based on the landmarks the reference horizontal plane, the frontal plane, and the median plane are used.
- 3D images displayed according to the plane can be corrected by rotating the median plane and the horizontal reference plane without changing the frontal plane.
- FIGS. 16 to 19 are diagrams for explaining another specific example of the correction of the reference coordinate system.
- FIG. 16 to 19 show the front side of the human head, and are three-dimensional Raysum displays (isometric equivalent projection image displays).
- the horizontal reference plane HP and the frontal plane VP1 are shown as straight lines.
- anterior nasal spine C1 and posterior nasal spine D1 are designated by a mouse or the like.
- Point C1 and point D1 are registered as landmarks as specified.
- the angle ⁇ between the line segment C1-D1 and the horizontal reference plane HP is calculated. For example, two points Cl and D1 are projected onto the median plane, the line segment C1 D1 is translated on the median plane, and the angle ⁇ with the horizontal reference plane HP is obtained. It can be illustrated as an example. (See Fig.
- the horizontal reference plane HP and the frontal plane VP1 are respectively rotated about the X axis by an angle (X rotated to create new horizontal reference planes newHP and newVPl.
- the original median plane is used as is.
- the side surface of the three-dimensional image displayed according to the coordinate system based on the corrected new reference plane is as shown in FIG.
- FIG. 19 assuming a new horizontal reference plane newHP and a hypothetical line connecting the anterior and posterior nasal spines, in other words, an imaginary line connecting the anterior and posterior nasal spines, this imaginary line is It is displayed so as to be parallel to the reference plane newHP.
- the present invention further includes the following reference axis and coordinate system correction of the reference plane.
- FIG. 10 a force that is an example in which landmarks for correcting the reference coordinate system are specified by specifying a pair of left and right landmarks on the human head.
- FIG. 5 the correction of the reference coordinate system based on a pair of upper and lower landmarks of the human head and the correction of the reference coordinate system based on a pair of front and rear landmarks are illustrated.
- the landmarks for correcting the reference coordinate system are not limited to specific orientations such as left and right, up and down, and front and rear as long as they are an arbitrary pair in the image.
- a 3D-CT image positioned on the plane of the ear and ear, adjust the CT value to display the skin, enter the left and right external eye angles, and project the position coordinates of the two points to the frontal plane .
- the X-axis and Z-axis are inclined by the amount of inclination between the straight line connecting the left and right external eye angles projected on the frontal plane and the horizontal reference plane (X-axis), and the coordinate system and 3D image are displayed. It is possible to correct the orientation.
- the X and Z axes can be modified by the amount of inclination between the straight line and the Z axis.
- the anterior nasal spine which is the tip of the maxilla
- the posterior nasal spine which is the posterior end
- these two points are projected onto the median plane and projected onto the median plane. It can be corrected by rotating the Y and Z axes by the amount of inclination between the straight line connecting these two points and the Y axis.
- the left and right external eye angles, left and right internal eye angles, left and right nose wings, left and right mouth angles, and a pair of left and right feature points, and the frontal surface These points are projected onto the frontal plane, and the average value of the slope between the straight line connecting each projected point and the X axis is obtained, and the X and Z axes are tilted by the average value.
- the reference axis can be corrected.
- the designation of the left and right feature points is not limited to only one point on each of the left and right sides, and a plurality of points on each of the left and right sides are designated.
- the left and right designated points may be used.
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/448,219 US20100328304A1 (en) | 2006-12-14 | 2006-12-01 | Display direction correcting device, correcting method, and correction program for medical 3d image |
PCT/JP2006/324968 WO2008072335A1 (ja) | 2006-12-14 | 2006-12-14 | 医用三次元画像の表示方向修正装置、修正方法および修正用プログラム |
KR1020097012095A KR20090089401A (ko) | 2006-12-14 | 2006-12-14 | 의료용 삼차원 화상의 표시방향 수정장치, 수정방법 및 수정용 프로그램 |
CN2006800565867A CN101547647B (zh) | 2006-12-14 | 2006-12-14 | 医用三维图像的显示方向修正装置、修正方法及程序 |
DE602006017605T DE602006017605D1 (de) | 2006-12-14 | 2006-12-14 | Vorrichtung zur korrektur der anzeigerichtung, korrekturverfahren und korrekturprogramm für ein medizinisches 3d-bild |
EP06834722A EP2090228B1 (en) | 2006-12-14 | 2006-12-14 | Display direction correcting device, correcting method, and correction program for medical 3d image |
CA002670705A CA2670705A1 (en) | 2006-12-14 | 2006-12-14 | Display direction correcting device, correcting method, and correction program for medical 3d image |
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PCT/JP2006/324968 WO2008072335A1 (ja) | 2006-12-14 | 2006-12-14 | 医用三次元画像の表示方向修正装置、修正方法および修正用プログラム |
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PCT/JP2006/324968 WO2008072335A1 (ja) | 2006-12-14 | 2006-12-14 | 医用三次元画像の表示方向修正装置、修正方法および修正用プログラム |
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US (1) | US20100328304A1 (ja) |
EP (1) | EP2090228B1 (ja) |
KR (1) | KR20090089401A (ja) |
CN (1) | CN101547647B (ja) |
CA (1) | CA2670705A1 (ja) |
DE (1) | DE602006017605D1 (ja) |
WO (1) | WO2008072335A1 (ja) |
Cited By (1)
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JP6155427B1 (ja) * | 2016-02-25 | 2017-07-05 | 地方独立行政法人秋田県立病院機構 | 医用断面表示装置及び断面画像表示方法 |
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WO2011058948A1 (ja) * | 2009-11-13 | 2011-05-19 | イマグノーシス株式会社 | 医用三次元画像の表示向き調整装置および調整プログラム |
US9241657B2 (en) * | 2010-06-30 | 2016-01-26 | Brainlab Ag | Medical image registration using a rigid inner body surface |
US9642560B2 (en) | 2013-04-03 | 2017-05-09 | Brainlab Ag | Method and device for determining the orientation of a co-ordinate system of an anatomical object in a global co-ordinate system |
US10360469B2 (en) | 2015-01-15 | 2019-07-23 | Samsung Electronics Co., Ltd. | Registration method and apparatus for 3D image data |
WO2019000270A1 (zh) * | 2017-06-28 | 2019-01-03 | 深圳市鑫君特智能医疗器械有限公司 | 三维模拟手术置钉的规划方法和外科手术模拟器 |
CN110544285B (zh) * | 2019-10-30 | 2020-02-04 | 南京安科医疗科技有限公司 | 一种矫正头部ct图像中头部位置的方法 |
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WO2001003065A1 (fr) * | 1999-06-30 | 2001-01-11 | Kim Han Joon | Dispositif d'affichage d'images tridimensionnelles, procede d'affichage et programme associe |
JP2002360564A (ja) * | 2001-06-05 | 2002-12-17 | Imagunooshisu Kk | 医用三次元画像の表示制御装置および表示用プログラム |
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US5557714A (en) * | 1993-01-29 | 1996-09-17 | Microsoft Corporation | Method and system for rotating a three-dimensional model about two orthogonal axes |
JP3537831B2 (ja) * | 1997-05-16 | 2004-06-14 | Hoya株式会社 | 眼鏡のオーダーメイドシステム |
EP1308903B1 (en) * | 2000-06-16 | 2010-04-14 | Imagnosis Inc. | Point inputting device and method for three-dimensional images |
JP3717505B2 (ja) * | 2001-10-31 | 2005-11-16 | イマグノーシス株式会社 | 医用画像処理装置、方法および処理プログラム |
FR2850775B1 (fr) * | 2003-01-30 | 2005-07-22 | Ge Med Sys Global Tech Co Llc | Dispositif d'imagerie medicale a reorientation semi-automatique d'objet radiologique |
US7623691B2 (en) * | 2004-08-06 | 2009-11-24 | Kabushiki Kaisha Toshiba | Method for helical windmill artifact reduction with noise restoration for helical multislice CT |
FR2881255B1 (fr) * | 2005-01-25 | 2007-03-30 | Gen Electric | Procede d'elaboration d'une image renale |
JP4612439B2 (ja) * | 2005-03-08 | 2011-01-12 | 株式会社東芝 | 画像表示装置 |
JP4465619B2 (ja) * | 2005-10-31 | 2010-05-19 | ソニー株式会社 | 登録装置、照合装置、画像補正方法及びプログラム |
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2006
- 2006-12-01 US US12/448,219 patent/US20100328304A1/en not_active Abandoned
- 2006-12-14 CN CN2006800565867A patent/CN101547647B/zh not_active Expired - Fee Related
- 2006-12-14 WO PCT/JP2006/324968 patent/WO2008072335A1/ja active Application Filing
- 2006-12-14 EP EP06834722A patent/EP2090228B1/en not_active Not-in-force
- 2006-12-14 DE DE602006017605T patent/DE602006017605D1/de active Active
- 2006-12-14 KR KR1020097012095A patent/KR20090089401A/ko not_active Application Discontinuation
- 2006-12-14 CA CA002670705A patent/CA2670705A1/en not_active Abandoned
Patent Citations (3)
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WO2001003065A1 (fr) * | 1999-06-30 | 2001-01-11 | Kim Han Joon | Dispositif d'affichage d'images tridimensionnelles, procede d'affichage et programme associe |
US6888546B1 (en) | 1999-06-30 | 2005-05-03 | Han-Joon Kim | Three-dimensional image display, display method, program for display |
JP2002360564A (ja) * | 2001-06-05 | 2002-12-17 | Imagunooshisu Kk | 医用三次元画像の表示制御装置および表示用プログラム |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6155427B1 (ja) * | 2016-02-25 | 2017-07-05 | 地方独立行政法人秋田県立病院機構 | 医用断面表示装置及び断面画像表示方法 |
JP2017148513A (ja) * | 2016-02-25 | 2017-08-31 | 地方独立行政法人秋田県立病院機構 | 医用断面表示装置及び断面画像表示方法 |
JP2017148480A (ja) * | 2016-02-25 | 2017-08-31 | 地方独立行政法人秋田県立病院機構 | 医用断面表示装置及び断面画像表示方法 |
Also Published As
Publication number | Publication date |
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US20100328304A1 (en) | 2010-12-30 |
CN101547647A (zh) | 2009-09-30 |
DE602006017605D1 (de) | 2010-11-25 |
EP2090228A4 (en) | 2009-12-02 |
EP2090228B1 (en) | 2010-10-13 |
CA2670705A1 (en) | 2008-06-19 |
CN101547647B (zh) | 2012-03-07 |
KR20090089401A (ko) | 2009-08-21 |
EP2090228A1 (en) | 2009-08-19 |
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