KR101124144B1 - Measuring system for degree of spine deformity - Google Patents

Abstract

PURPOSE: A system for measuring spinal deformity is provided to acquire 3D data for the spinal deformity state without using a 3D image generating device. CONSTITUTION: An X-ray photographing unit(10) generates a photographed result of the spine as an X-ray image. A marking display unit(20) outputs the X-ray image on a marking screen. The marking display unit includes a marking unit which can display a reference vertical line generating point and a measurement target reference point An operation unit(30) generates a reference vertical line based on the reference vertical line generating point.

Description

Measuring system for spine deformation {Measuring system for degree of spine deformity}

The present invention relates to a system for measuring spinal deformation, and to measuring the degree of spinal deformity of a patient with scoliosis, and to a measuring system to be used as medical basic data or to manufacture a brace.

In general, scoliosis is difficult to properly distribute the weight and movement is unnatural due to the bending or twisting of the spine.

As a result, the body changes its overall shape to compensate for it, distracting natural passions, leading to negative fever syndrome. Compensation forms appear in the neck and pelvis, and the rotational displacement of the neck (cervical spine) and the height difference and distortion of the pelvis occur, and in severe cases, the ribs turn and the size of both chests and shoulder heights vary. In addition, the spine is bent to the side and the vertebrae (one vertebrae) are accompanied by rotation.

If such scoliosis is suspected, a tendon examination will be performed. With the feet straight, the knees bent, the back bent, and a bent back with a tool called a scoliometer is moved from the neck to the hips. Visually check the left and right slope difference and measure the Cobb's angle.

The copse angle is obtained by a copsis measuring method, and refers to a value obtained by measuring the vertebrae of the upper and lower vertebrae of the most vertebrae. For example, in the drawing of FIG. 1, a line is drawn at the top of the upper end vertebrae that is most inclined toward the concave of the curve to be measured, and at the bottom of the lower end vertebra of the curve, and then a perpendicular line is drawn at each line to obtain an intersecting angle. This is the cobbs angle θ.

If the measured Coffs angle is less than 20 degrees, the degree of scoliosis should be examined every 6 months. If the disease is between 20 and 40 degrees, the brace should be worn until the age of 15 to 16 years. Scoliosis should be corrected.

However, since the conventional Coffs angle measurement method is measured using the X-ray data of the coronal plane (front), it is not only an accurate indicator of the actual torsion or bending degree of the vertebral body, but also a difference in the measured values for each measurement person. There was a disadvantage that can not be measured accurately and consistently.

In addition, since the Coffs angle is not three-dimensional data, it is difficult to use as a basic data for the production of surgery or braces.

The present invention has been made to overcome the above problems, the present invention relates to a spinal deformation measurement system configured to easily obtain more detailed and accurate data with respect to spinal deformation occurring in scoliosis patients and the like.

Accordingly, the spine deformation measuring system of the present invention includes an X-ray photographing unit for photographing the spine of the subject and generating the photographed result as an X-ray image; A marking display unit which receives the X-ray image generated by the X-ray photographing unit and outputs it to a marking screen, and has marking means for displaying a reference vertical line generation point and a measurement target reference point on the marking screen; A calculation unit configured to generate a reference vertical line based on the reference vertical line generation point, and calculate relative position information of the measurement target reference point or the measurement target point derived from the measurement target reference point based on the reference vertical line; And, characterized in that it comprises a storage unit for receiving and storing the relative position information calculated by the calculation unit.

In the above configuration, the X-ray photographing unit may further include a horizontal bottom plate having a horizontal plane on which the subject can stand.

The marking means may be a single touch pen, and the calculation unit may set the reference vertical line generation point to a set number of display points initially displayed by the touch pen, and the measurement target reference point is after the set number. The relative position information may be calculated as a display point displayed by the touch pen.

The marking means may include two or more kinds of marking means recognized separately from each other in the marking display unit, and the marking means for displaying the reference vertical line is selected from one or more of the two marking means. The remaining marking means except for the selected one marking means may be configured to display a measurement target reference point.

In addition, generating a reference vertical line based on the reference vertical line generation point, calculates a middle point of the two reference vertical line generation point for one x-ray image, and draw a line in the vertical direction from the middle point to form a reference vertical line It is preferable to produce.

Specifically, the X-ray image photographed by the X-ray photographing unit is configured in a direction in which the vertical side is perpendicular to the horizontal bottom plate, and generating a reference vertical line based on the reference vertical line generation point is 2 for one X-ray image. Computing the midpoint of the two reference vertical line generation point may be to generate a reference vertical line in parallel with the vertical side at the intermediate point.

In another method, a reference rod perpendicular to the horizontal bottom plate is installed in the X-ray imaging unit, and the X-ray imaging unit is installed such that the reference rod is included in the X-ray image, and the reference vertical line is based on the reference vertical line generation point. Generating the reference point may be to generate a reference vertical line parallel to the reference rod at the intermediate point by calculating intermediate points of the two reference vertical line generation points in one X-ray image.

Spinal deformation measurement system according to the present invention provides a system that can more accurately and easily measure the degree of deformation of the vertebral body.

In addition, even without a device for generating a three-dimensional image of the vertebral body, three-dimensional data on the degree of deformation of the vertebral body can be easily obtained.

Accordingly, it is possible not only to obtain and utilize accurate basic data for correcting the position of the vertebral body and to plan the surgical plan before the surgical operation of the spine, but also to obtain basic data for designing the brace even when manufacturing the brace. Can be utilized for

1 is an explanatory diagram of a method of measuring a corps angle
2 is a block diagram of a system for measuring spine deformation according to an embodiment of the present invention.
Figure 3 is an explanatory diagram of the configuration of the X-ray imaging unit in the spine deformation measurement system according to an embodiment of the present invention
Figure 4 is an X-ray image of the coronal (front) and sagittal (side) of the subject taken by the x-ray imaging unit according to an embodiment of the present invention
5 is an explanatory diagram of marking points in the vicinity of the sacral vertebra for generating a reference vertical line;
FIG. 6 is an explanatory diagram for describing relative position information of a measurement target reference point of the vertebral body, and thus a spine target point and a reference vertical line; FIG.
Figure 7 is a block diagram illustrating the processing of the operation unit in the spine deformation measurement system according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 2 spine deformation measurement system according to an embodiment of the present invention, the x-ray imaging unit 10 for photographing the spine of the subject (1) and generates a photographed result as an X-ray image; A display unit for marking which receives the X-ray image generated by the X-ray photographing unit 10 and outputs it to a screen for marking, and marking means for displaying a reference vertical line generation point and a measurement target reference point on the screen for marking. 20; A calculation unit 30 generating a reference vertical line based on the reference vertical line generation point, and calculating relative position information of the measurement target reference point or the measurement target point derived from the measurement target reference point based on the reference vertical line; And, the storage unit 40 for receiving and storing the relative position information calculated by the operation unit 30.

The X-ray photographing unit 10 is a part which acquires an image of the spine of the subject 1 by the X-ray photographing apparatus 2.

Referring to FIG. 3, the X-ray photographing apparatus 2 may be generated as a digital image and automatically transmitted to the marking display unit 20 when photographing. However, when the x-ray imaging apparatus 2 uses the x-ray film, a scanner is further provided to scan the photographed x-ray film to generate an image, and the image generated by the scanner is automatically transmitted to the display unit 20 for marking. Is connected.

The X-ray photographing unit 10 is provided with a horizontal bottom plate 3 having a horizontal surface on which the subject 1 can stand in a state where both legs are landing. The horizontal bottom plate 3 forms a plane using a level so as to be a horizontal plane, and the subject 1 stands in a posture of landing the two feet on the horizontal bottom plate 3 to take a picture.

The direction perpendicular to the horizontal bottom plate 3 may be a reference for the normal spine upright, and the horizontal state of the horizontal bottom plate 3 may be a correct horizontal direction in the image photographed by the X-ray imaging apparatus 2. It is possible to display and to easily generate the reference vertical lines (V1, V2) to be described later.

In the method of displaying the horizontal direction on the photographed image, the rectangular photographed image obtained by the X-ray photographing apparatus 2 has the horizontal side 51 exactly coinciding with the horizontal direction of the bottom plate, and the vertical side 52 has the horizontal bottom plate 3 X-ray imaging device (2) is installed so as to exactly match the direction perpendicular to the (). Accordingly, the rectangular X-ray image obtained by the X-ray imaging apparatus 2 becomes a vertical line in which the vertical side 52 stands in the state where the subject 1 stands at the time of photographing, and the vertical line is parallel to the centerline of the normal spine standing upright. Will be.

In the rectangular X-ray image generated by the X-ray photographing apparatus 2, even if the horizontal side 51 and the vertical side 52 do not exactly match the horizontal and vertical directions, as another method, a vertical rod standing vertically (Not shown) is photographed to be taken with the subject (1) in the X-ray image in a state in which the subject (1) is installed on one side of the standing position or suspended vertically from the ceiling. Accordingly, when generating the reference vertical lines (V1, V2) to be described later, by generating a straight line in a direction parallel to the reference rod it is possible to accurately generate the reference vertical lines (V1, V2).

The photographing by the X-ray imaging apparatus 2 is performed on the coronal (frontal) and sagittal (lateral) surfaces of the subject 1, so that the subject 1 does not turn to 90 °, but the X-ray imaging apparatus 2 is the subject. (1) It may be constructed so that it can turn 90 ° around.

Spinal body deformity due to scoliosis is not only one-way, but three-dimensional deformation occurs in the three-dimensional space. Only accurate measurement can be identified.

Meanwhile, the marking display unit 20 receives an X-ray image generated by the X-ray photographing unit 10 and outputs it to a marking screen, and displays a plurality of position points on the screen. Therefore, the marking display unit 20 should be provided with marking means for displaying a predetermined position on the screen.

When the user displays a point on the screen using the marking means, the position value of the point is input.

The screen is a well-known touch screen and the marking means is most preferably a touch pen that can be input a position value by displaying a point on the touch screen.

In addition, the input of the position point by the marking means is to know the distance from the reference vertical line generation points (S1, S2; Sa, Sb) and the reference vertical lines (V1, V2) for generating the reference vertical lines (V1, V2). Since the input of the measurement target reference point (P1, P2; Pa, Pb; .....) to determine the measurement point to be required is necessary, the input of the two must be distinguished.

In order to distinguish between the different types of marking means, one marking means is used as marking means for generating the reference vertical lines (V1, V2), the other is to mark the position point to be measured It is a marking means. When several marking means are provided, only one marking means (touch pen) is set for the display of the reference vertical line generation point.

In the case where different marking means are used, the points marked by the marking means for generating the reference vertical lines V1 and V2 are generated as data including an identifier that distinguishes them from other mark points.

On the other hand, as described above, but not using a plurality of marking means, but using only one marking means, by the marking order of the reference vertical line generation point (S1, S2; Sa, Sb) and the measurement target reference point (P1, P2; Pa) , Pb; .....) That is, the set number of times initially displayed in one image, for example, the first and second displayed points are defined as the reference vertical line generation points based on which the reference vertical lines V1 and V2 are generated. In this case, the first and second display points include an identifier together with the coordinate information and are transmitted to the operation unit 30 so as to be distinguished from the measurement target reference point and transmitted to the operation unit 30.

On the other hand, the calculation unit 30 generates the reference vertical lines (V1, V2) from the displayed reference vertical line generation points (S1, S2; Sa, Sb), and a plurality of measurement targets displayed based on the reference vertical lines (V1, V2) Information about the relative position of the reference point (P1, P2; Pa, Pb; .....) is calculated.

First, two reference vertical line generation points S1 and S2 are displayed in the X-ray image of the coronal plane, as shown in FIG. 5 (a), to generate the reference vertical lines V1 and V2. Reference vertical generation points Sa and Sb are indicated. In each X-ray image of the coronal plane and the sagittal plane, the middle points S3 and Sc of the two reference vertical line generation points S1, S2; Sa and Sb are calculated, respectively, and then the middle points S3 and Sc. To form the reference vertical lines V1 and V2 in the vertical direction. In order to form a line in the vertical direction, it may be generated by forming a line parallel to the vertical side 52 already formed vertically in the rectangular X-ray image. For reference, since the vertical side 52 is perpendicular to the horizontal side 51, forming a line perpendicular to the horizontal side 51 also becomes a vertical direction.

If the vertical side 52 of the X-ray image is not utilized, the above-described vertical reference rods appear together in the X-ray image to generate a straight line perpendicular to the reference rods at the intermediate points S3 and Sc. Reference vertical lines V1 and V2 may be generated. After forming a line by recognizing the intensity of the reference rods imprinted on the image, the process of forming the reference vertical lines (V1, V2) in parallel with it is to be sequentially processed inside the operation unit (30).

Meanwhile, when generation of the reference vertical lines V1 and V2 is completed, the measurement target points P3 and Pc are calculated using the measurement target reference points P1, P2; Pa, and Pb, and the reference vertical lines V1, V2 and P2 are calculated. Based on V2), the relative positions of the measurement target points P3 and Pc are calculated. The relative position information may be calculated through the number of pixels of the image.

The measurement target reference points (P1, P2; Pa, Pb) may be the measurement target points (P3, Pc) by themselves, but as shown in FIG. 6, each of the two measurement target reference points (P1, P2; Pa, Pb) is shown. It is preferable to set the midpoint of the center, i.e., the center point of the upper end plate of each segment of the vertebral body as the measurement target points (P3, Pc). The selection of the measurement target point can be changed according to the needs of the user.

In addition, since the relative position information is used as an indicator for measuring the degree of deformation of the patient, such as scoliosis based on the normal vertebral body, simply as a horizontal distance from the measurement target point (P3, Pc) to the reference vertical lines (V1, V2) As described later, after setting the return point C1 expected when returning to the normal position from the reference vertical line V1, the relative position with respect to the return point C1 on the reference vertical line V1 is set. It is also possible to get information. Therefore, when the reference vertical lines V1 and V2 and the measurement target points P3 and Pc are calculated, the relative position information therebetween may vary the measuring method according to the needs of the user, and It is a physical value.

The storage unit 40 stores the relative position information of the measurement target points P3 and Pc calculated by the computing device as data.

Hereinafter, the process of measuring the degree of deformation of the spine using the spine deformation measurement system according to an embodiment of the present invention.

First, the subject 1 lands his or her feet on the horizontal bottom plate 3 as shown in FIG. 3, and the x-ray imaging apparatus 2 photographs the spine to generate an x-ray image. The photographing is performed twice on the coronal and sagittal planes of the subject 1.

The photographed X-ray image is transmitted to the marking display unit 20 so that the X-ray image of the coronal plane and the sagittal plane is simultaneously or sequentially displayed on the screen as shown in FIG. 4.

By observing the X-ray image output on the screen, the user displays the reference vertical line generation points (S1, S2; Sa, Sb) and the measurement target reference points (P1, P2; Pa, Pb). At this time, if the marking means is a single touch pen, the display points of the first and second order in the X-ray image of the coronal surface are provided to the calculation unit 30 as the reference vertical line generation points (S1, S2; Sa, Sb), and The display points to be photographed later are provided to the calculation unit 30 including the identifiers to be recognized as the measurement target reference points (P1, P2; Pa, Pb). Similarly, in the sagittal plane, the display points of the first and second order are provided to the calculation unit 30 including the identifiers as the reference vertical line generation points (S1, S2; Sa, Sb), and all subsequent display points are the measurement target reference points ( It is recognized as P1, P2; Pa, Pb) and is provided to the calculation unit 30. The reference point of measurement (P1, P2; Pa, Pb; ...) includes a different identifier for each segment of the spine. For example, starting with the lumbar spine, two segments are taken sequentially for each segment, and the identifiers are changed every two points.

On the other hand, when two kinds of touch pens are recognized, the marking means being distinguished from each other in the marking display unit 20, two reference vertical line generating points S1, S2 using one touch pen are set. , Sb) and another measurement pen to display the measurement target reference points P1, P2; Pa, Pb. This is done on the coronal and sagittal x-ray images respectively.

A specific location of the reference vertical lines V1 and V2 is shown in FIG. 5.

Referring to FIG. 5, first, S1 and S2 points are displayed in the coronal X-ray image in which the junction between the spine and the pelvis appears as shown in FIG. S1 and S2 are the left and right boundary points of the upper end of the sacral spine, which can be displayed at a consistent position on the X-ray image by a specialist in the spine field.

Subsequently, in the sagittal x-ray image, the side surface of the junction between the vertebrae and the pelvis is shown in FIG. 5 (b), and the Sa point and the Sb point of FIG. 5 (b) are indicated. Sa point and Sb point are the front and rear boundary points of the upper end of the sacral spine, which can be displayed in a consistent position on the X-ray image by a specialist in the spine field.

The S1, S2, Sa and Sb points are specific points of the human body that do not change regardless of the presence or absence of spinal deformity.

In addition, a specific position indicating the measurement target reference point (P1, P2; Pa, Pb) is shown in FIG.

Referring to Figure 6, the measurement target reference point (P1, P2; Pa, Pb) is displayed for each node of the vertebral body to be measured. In case of marking on all vertebral bodies, each of 5 lumbar vertebrae, 12 thoracic vertebrae, and 7 cervical vertebrae each have the same P1 and P2 points as shown in FIG. Two reference points for measurement are displayed. Points P1 and P2 are the left and right boundary points of the upper end plate of the vertebral column, and Pa and Pb points are the anterior and posterior boundary points of the upper end plate of the vertebral column. That can be.

On the other hand, when the coordinate data of the reference vertical line generation points (S1, S2; Sa, Sb) and the measurement target reference points (P1, P2; Pa, Pb) are transferred from the display unit for marking 20 to the calculation unit 30, the calculation unit ( 30) processes the data to produce data on the extent of spinal deformity.

7 shows a processing procedure in the calculation unit 30 as a block diagram.

First, the calculation unit 30 calculates a reference point for generating the reference vertical lines V1 and V2. (Step 110 and step 210).

The reference point is generated from the coronal x-ray image and the sagittal x-ray image, respectively, and calculates the S3 point of FIG. 5 (a) by calculating the intermediate point S3 of the position coordinates of the S1 and S2 points in the coronal x-ray image. The sc point of FIG. 5 (b) is calculated by calculating the intermediate point Sc of the position coordinates of the Sa point and the Sb point in the sagittal x-ray image.

When the S3 and Sc points are calculated, the reference vertical lines V1 and V2 are generated in the vertical direction from the S3 and Sc points, respectively (steps 120 and 220).

When generating the reference vertical lines V1 and V2, a straight line parallel to the vertical side 52 of the coronal X-ray image is generated while passing through the S3 point, and the vertical side 52 of the sagittal X-ray image passes through the Sc point. It can be implemented by creating parallel straight lines. Here, the horizontal bottom plate 3 and the X-ray imaging apparatus 2 are set so that the vertical side 52 of the X-ray image is in the vertical direction. If the above-described reference rod appears in the X-ray image, the contrast may be recognized and used to generate the reference vertical lines V1 and V2 by replacing the vertical side 52 of the X-ray image.

On the other hand, the calculation unit 30 calculates the intermediate point of the position coordinates of the P1 point and P2 point in the coronal X-ray image to calculate the measurement point (P3, Pc) from the measurement target reference point (P1, P2; Pa, Pb) The point P3 of FIG. 6 (a) is calculated, and the point Pc of FIG. 6 (b) is calculated by calculating the intermediate point between the position coordinates of the Pa point and the Pb point in the sagittal x-ray image. )

Then, as shown in Fig. 6, by drawing a straight line connecting the P1 point and the P2 point in the coronal plane X-ray image to calculate the C1 point meeting the reference vertical line (V1) of the coronal plane, Pa point and Pb point in the sagittal plane X-ray image Draw a straight line connecting each other to calculate the point C2 that meets the reference vertical line V2 of the sagittal plane.

When C1 and C2 points are calculated, Δx and Δz1, which are relative position information from C1 point to P3 point, are calculated in the coronal X-ray image, and Δy, which is relative position information from C2 point to Pc point in sagittal plane X-ray image, is calculated. Value and Δz2 value are calculated (step 140 and step 240).

Preferably, the Δx and Δz1 values, and the Δy and Δz2 values are calculated for each node of the vertebral body.

As described above, the relative position information of the vertebral body calculated for each node is collected as data on the degree of spinal deformation (step 300), stored in the storage unit 40, and displayed on the display as necessary.

Obtaining the relative position information from the point C1 to the point P3 as described above, since the movement trajectory when the deformed vertebral body returns to the normal position will be close to the line connecting the lines C1 and P3, the relative position information is calculated as above. have. In the sagittal x-ray image, the vertebral body is originally curved, so it is necessary to store the same data about the vertebral body in the normal state in advance and compare the degree of difference.

In the coronal plane, the reference vertical line V1 becomes the reference line of the normal vertebral body because it becomes the longitudinal direction of the normal vertebral body. In the sagittal plane, the reference vertical line V2 is the reference line for obtaining the position information to compare with the position value of the normal vertebral body. Becomes

On the other hand, the displaced relative position value of a specific point on the vertebral body deformed from the reference vertical lines (V1, V2) can be obtained from another point of view. P1, P2; Pa, Pb) can be displayed on the required portion to obtain relative position information easily.

It is also possible to utilize only the relative position information calculated with respect to the coronal x-ray image of the obtained data.

Accordingly, the system of the present invention measures the degree of deformation of the spine from the reference vertical lines (V1, V2) to calculate the relative position value of the vertebral body and to easily data the values. The data can be used as a basis for planning surgery for surgical operation of deformed vertebrae and can be used to design a brace for scoliosis patients.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the particular embodiments set forth herein. It goes without saying that other modified embodiments are possible.

One; Subject 2; X-ray imaging device
3; Horizontal bottom plate 10; X-ray imaging department
20; Marking display unit 30; Calculator
40; Storage 51; Roadside
52; Longitudinal sides V1, V2; Standard vertical line
S1, S2, Sa, Sb; Reference vertical generation points P1, P2, Pa, Pb; Measurement target point
P3, Pc; Measuring point

Claims (7)

An X-ray photographing unit 10 photographing the spine of the subject 1 and generating the photographed result as an X-ray image;
Receiving the X-ray image generated by the X-ray photographing unit 10 and outputting it to a screen for marking, and the reference vertical line generating points S1, S2; Sa and Sb and the measurement target reference points P1 and P2 on the screen for marking; Marking display unit 20 having a marking means capable of displaying Pa, Pb;
Generating reference vertical lines V1 and V2 based on the reference vertical line generation points S1, S2; Sa and Sb, and based on the reference vertical lines V1 and V2, the measurement target reference points P1 and P2; A calculation unit (30) for calculating relative position information of the measurement target points (P3, Pc) derived from Pa, Pb) or the measurement target reference points (P1, P2; Pa, Pb); And,
Spinal deformation measurement system, characterized in that it comprises a storage unit 40 for receiving and storing the relative position information calculated by the operation unit 30 The method of claim 1,
The x-ray photographing unit 10 further includes a horizontal bottom plate 3 having a horizontal surface on which the subject 1 can stand. The method of claim 2,
The marking means is a single touch pen,
The calculation unit 30
The reference vertical line generating points (S1, S2; Sa, Sb) are set to the number of display points initially displayed by the touch pen,
The measurement target reference point (P1, P2; Pa, Pb) is a spine deformation measuring system, characterized in that for calculating the relative position information as a display point displayed by the touch pen after the set number The method of claim 2,
The marking means includes two or more kinds of marking means that are distinguished from each other in the marking display unit 20,
The marking means for displaying the reference vertical line generation point (S1, S2; Sa, Sb) is
One marking means selected from the above two or more marking means,
Spinal deformation measurement system, characterized in that for the remaining marking means other than the selected one marking means to display the measurement target reference point (P1, P2; Pa, Pb) 5. The method according to any one of claims 1 to 4,
Generating the reference vertical lines (V1, V2) based on the reference vertical line generation points (S1, S2; Sa, Sb),
The middle point S3, Sc of the two reference vertical line generating points S1, S2; Sa, Sb is calculated for one X-ray image, and a line is drawn in the vertical direction from the middle point S3, Sc. Spinal deformation measurement system, characterized in that to generate a vertical line (V1, V2) 5. The method according to any one of claims 1 to 4,
The X-ray image photographed by the X-ray photographing unit 10 has a vertical side 52 in a direction perpendicular to the horizontal bottom plate 3,
Generating the reference vertical lines (V1, V2) based on the reference vertical line generation points (S1, S2; Sa, Sb),
The intermediate points S3 and Sc of the two reference vertical line generating points S1, S2; Sa and Sb are calculated for one X-ray image and are parallel to the longitudinal sides 52 at the intermediate points S3 and Sc. Spine deformation measurement system, characterized in that to generate the reference vertical line (V1, V2) The method according to any one of claims 2 to 4,
The x-ray photographing unit 10 is provided with a reference rod perpendicular to the horizontal bottom plate 3,
The x-ray imaging unit 10 is installed so that the reference rod is included in the x-ray image,
Generating the reference vertical lines (V1, V2) based on the reference vertical line generation points (S1, S2; Sa, Sb),
In one X-ray image, the middle points S3 and Sc of the two reference vertical line generating points S1, S2, Sa and Sb are calculated to be parallel to the reference rod at the intermediate points S3 and Sc. V1, V2) to produce a spine deformation measurement system characterized in that

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